50 results for Software Developer in Tokyo, Tōkyō

Software Engineer (Java)

Tokyo,
remote
Contract
5.0M - 10.0M JPY / Yearly
KEY REQUIREMENTS<ul><li>Japanese N3 level or above required</li><li>3+ years application development experience using COBOL or JAVA/JS</li><li>3+ years database application development experience (any type)</li><li>Flexible thinking without being fixated on specific business domains or technologies</li><li>Understanding of user-side operations and ability to cooperate actively</li><li>Can handle everything from requirements definition to coding and testing</li></ul>PRODUCT/PROJECT/TEAM<ul><li>Products/Projects: Digital transformation initiatives for paperless operations, labor-saving measures, and automation. System modifications across various business domains including underwriting, policy management, claims payment, agent management, and data infrastructure.</li><li>Tech Stack/Tools: Multiple environments - YPS/COBOL on Linux/OpenFrame, COBOL on IBM i (AS/400), Java/JavaScript with Spring Boot on Azure. Tools include Oracle, SQL Server, ETL, ESB, HULFT, JP1, ListWorks, FORM.</li><li>Team Structure: IT Service Delivery Departments 1-3, total organization size 50-60 people. Different departments handle different business domains (operations, agent management, open systems).</li><li>Work Style: Waterfall and Agile development methodologies. Hybrid work system with office/remote flexibility.</li></ul>CHARACTER & CULTURE<ul><li>Company: Customer-led and tech-enabled approach. Values include sharing corporate values, thinking outside the box, taking on challenges, and executing what they believe is right. Vision of changing the way people feel about insurance.</li><li>Team: Cooperative environment where team members actively promote initiatives together. Flexible career design possible with paths toward both management and specialist roles. Job Posting system allows internal applications across the company.</li></ul>Location TokyoSalary5 - 10 million yen Reference Number: 06940-0013293972By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi4zNjYwNi4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-09-09T06:19:33Z

Software Engineer

Tokyo,
remote
Contract
11.9M - 11.9M JPY / Yearly
Ref No: 06940-0013287783 Location: Tokyo (Remote OK within Japan) Salary: ¥11,856,000<hr data-start="261" data-end="264" /><h3 data-start="266" data-end="297">What You'll Be Working On</h3>A social application with over 400,000 users (as of September 2024), focused on supporting a specific adult demographic. Built with modern AI technology and an intuitive UI/UX, the platform sees 1 match every 4 seconds and 1,000 new signups daily. It offers users a private and secure space to express concerns beyond their personal and professional environments.As a Full-Stack Web Developer, you will be responsible for designing, developing, and maintaining both new and existing features. You will collaborate with customer support and design teams to improve user experience. Strong skills in both frontend and backend development and familiarity with modern web technologies are required.<hr data-start="1016" data-end="1019" /><h3 data-start="1021" data-end="1043">Technology Stack</h3>Languages & Frameworks<ul data-start="1073" data-end="1296"><li data-start="1073" data-end="1116">TypeScript, JavaScript, Python, Node.js</li><li data-start="1117" data-end="1126">React</li><li data-start="1127" data-end="1139">DynamoDB</li><li data-start="1140" data-end="1165">Git (Version Control)</li><li data-start="1166" data-end="1197">GitHub (Project Management)</li><li data-start="1198" data-end="1223">Slack (Communication)</li><li data-start="1224" data-end="1296">Jest, Amplify, GraphQL, AWS (ALB, EC2, Cognito, Lambda, S3), SCSS, SQL</li></ul><hr data-start="1298" data-end="1301" /><h3 data-start="1303" data-end="1342">Development Environment & Culture</h3>Team & Organization<ul data-start="1370" data-end="1569"><li data-start="1370" data-end="1408">Team size: Fewer than 10 engineers</li><li data-start="1409" data-end="1457">Engineers participate in performance reviews</li><li data-start="1458" data-end="1507">Monthly career check-ins with managers or CTO</li><li data-start="1508" data-end="1569">Engineers earning ¥8M+ annually without management duties</li></ul>Technical Culture<ul data-start="1595" data-end="1750"><li data-start="1595" data-end="1646">Engineers involved in executive decision-making</li><li data-start="1647" data-end="1700">Engineering leadership with technical backgrounds</li><li data-start="1701" data-end="1750">English communication opportunities available</li></ul>Developer Autonomy<ul data-start="1777" data-end="2079"><li data-start="1777" data-end="1830">End-to-end responsibility: design, build, operate</li><li data-start="1831" data-end="1887">Engineers drive technical debt and tool improvements</li><li data-start="1888" data-end="1925">Freedom to choose OS, editor, IDE</li><li data-start="1926" data-end="1964">Engineers estimate their own tasks</li><li data-start="1965" data-end="2013">Iterative development with flexible schedule</li><li data-start="2014" data-end="2079">Tech stack kept up-to-date (within 1 year of latest versions)</li></ul>Quality Assurance<ul data-start="2105" data-end="2323"><li data-start="2105" data-end="2151">Mandatory code reviews or pair programming</li><li data-start="2152" data-end="2191">Shared coding standards across team</li><li data-start="2192" data-end="2229">Multi-environment quality testing</li><li data-start="2230" data-end="2264">Continuous deployment/delivery</li><li data-start="2265" data-end="2323">Pull request-based workflows with full version control</li></ul><hr data-start="2325" data-end="2328" /><h3 data-start="2330" data-end="2355">Scale & Performance</h3><ul data-start="2356" data-end="2465"><li data-start="2356" data-end="2388">Concurrent users: thousands+</li><li data-start="2389" data-end="2431">DB tables: tens of millions of records</li><li data-start="2432" data-end="2465">High traffic: thousands of RPS+</li></ul><hr data-start="2467" data-end="2470" /><h3 data-start="2472" data-end="2494">Work Environment</h3><ul data-start="2495" data-end="2668"><li data-start="2495" data-end="2528">Full remote work within Japan</li><li data-start="2529" data-end="2553">Mid-day break system</li><li data-start="2554" data-end="2626">Family-friendly: team includes engineers with preschool-age children</li><li data-start="2627" data-end="2668">Flextime or discretionary work system</li></ul><hr data-start="2670" data-end="2673" /><h3 data-start="2675" data-end="2699">Benefits & Support</h3><ul data-start="2700" data-end="2845"><li data-start="2700" data-end="2765">Conference participation supported (tickets + business trips)</li><li data-start="2766" data-end="2809">Preferred-spec PC and displays provided</li><li data-start="2810" data-end="2845">Open to new graduate developers</li></ul><hr data-start="2847" data-end="2850" /><h3 data-start="2852" data-end="2877">Required Experience</h3>Must-Have<ul data-start="2895" data-end="3055"><li data-start="2895" data-end="2923">Performance optimization</li><li data-start="2924" data-end="2950">Remote work experience</li><li data-start="2951" data-end="2989">Feature enhancements and additions</li><li data-start="2990" data-end="3027">Release and deployment operations</li><li data-start="3028" data-end="3055">New feature development</li></ul>Nice-to-Have<ul data-start="3076" data-end="3231"><li data-start="3076" data-end="3112">Bug identification and reporting</li><li data-start="3113" data-end="3139">Refactoring experience</li><li data-start="3140" data-end="3187">Experience with large-scale traffic systems</li><li data-start="3188" data-end="3231">Load balancing and scalability planning</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjEwOTQ5LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-09-19T01:57:24Z

Senior Software Engineer (Open to Any Language)

Tokyo,
remote
Permanent
8.0M - 15.0M JPY / Yearly
Senior Software Engineer (All Languages Welcome: Python, Java, Go, etc.) Drive critical projects and solve complex technical challenges at scale. We care more about your architectural thinking, problem-solving skills, and real-world experience than any single programming language. If you're a senior engineer ready to work with a diverse team and open to learning new tools, let's talk! 🌟 WHY THIS OPPORTUNITY IS EXCEPTIONAL Pioneer next-generation financial systems - from core banking modernization to cashless payment platforms that impact millions of users daily Work with bleeding-edge tech stack including cloud-native solutions, mobile technologies, and generative AI integration in financial services Shape products from concept to production - join projects at the proof-of-concept stage and influence architectural decisions from day one Agile development in traditional finance - break industry norms by implementing modern development practices in Japan's conservative financial sector Small, high-impact teams (5-8 members) with dedicated senior engineers providing mentorship and pair programming opportunities Direct client collaboration on requirements definition and system design, not just implementation work 💻 WHAT YOU'LL BUILD Design and implement API-first financial solutions for third-party integrations using OAuth 2.0/OpenID Connect/FAPI standards Develop microservices architectures on GCP/AWS/Azure for scalable payment processing systems Create modern web applications using TypeScript, Vue.js, and mobile-first approaches with Ionic Build core banking system modernization projects using Java/Kotlin Spring and multi-cloud infrastructure Implement security-first development practices for financial-grade data protection Write comprehensive technical documentation and knowledge transfer to global team members 👩‍💻 WHO WE'RE SEEKING Essential Experience: 7+ years as a software engineer with proven track record in production systems Hands-on expertise in one or more: Java, Go, Kotlin, C#, Javascript, Typescript, Python etc. Cloud platform experience with AWS, GCP, or Azure Team development experience with version control and collaborative workflows Conversational English for international team communication Experience building products from conception stage through full development lifecycle 🎯 WHAT'S IN IT FOR YOU Accelerated career growth through diverse project exposure across multiple technology stacks High social impact work improving Japan's financial infrastructure and promoting cashless society adoption Multicultural engineering environment with global perspectives and cross-cultural collaboration skills End-to-end ownership from architecture design through deployment and user delivery Technology exploration opportunities to expand beyond your current programming language expertise Mentorship from senior engineers in small team settings with personalized skill developmentReference No. : 06940-0013273964By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c3VlLnRpbmcuMzUxMTguMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-08-05T06:45:19Z

Software Engineer

Tokyo,
remote
Contract
10.8M - 10.8M JPY / Yearly
Client Profile Our client is mobility technology company focused on building software platforms and infrastructure for future transportation systems.Overview We are seeking a skilled Software Engineer to join the mobile development team. In this role, you will design, implement, and enhance mobile app features with a focus on performance, stability, and user experience. You will collaborate with cross-functional teams, contribute to clean and scalable architecture, and continuously improve our codebase and development processes.Key Responsibilities<ul><li>Develop and implement mobile app features and UI using Flutter</li><li>Collaborate closely with backend, UX, and other mobile engineers in cross-functional teams</li><li>Independently or jointly develop and deliver new features</li><li>Conduct unit testing and UI regression testing to ensure app quality</li><li>Debug and fix issues to maintain app stability</li><li>Monitor app performance and identify opportunities for improvements</li></ul>Requirements<ul><li>3+ years of mobile app development experience (Android or iOS) in a professional environment</li><li>Experience with native app development (Kotlin, Swift) or Flutter (Dart)</li><li>If no Flutter experience, proven ability to quickly learn new frameworks (e.g., ReactJS, SwiftUI, Jetpack Compose)</li><li>Strong knowledge of Clean Architecture and general software architecture practices</li><li>Hands-on experience with refactoring and improving codebases</li><li>Proactive, innovative mindset with a passion for improving products and processes</li><li>Willingness to learn new technologies and share knowledge with the team</li></ul>Hourly Salary5,200 JPYLocation Tokyo Reference Number: 06940-0013287776By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjM2Nzc1LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-09-17T03:43:59Z

Software Engineer

Tokyo,
remote
Permanent
8.0M - 8.0M JPY / Yearly
<h3 data-start="179" data-end="203">Job Responsibilities</h3><ul data-start="205" data-end="932"><li data-start="205" data-end="286">Collaborate with the development team to create innovative software solutions</li><li data-start="287" data-end="387">Participate in technical decision-making, including framework and programming language selection</li><li data-start="388" data-end="462">Share expertise on selected technologies and development architectures</li><li data-start="463" data-end="549">Provide support for product development and implement in-house technical solutions</li><li data-start="550" data-end="626">Develop and manage high-performance systems, databases, and applications</li><li data-start="627" data-end="688">Create high-level APIs and write clear, maintainable code</li><li data-start="689" data-end="756">Test software to ensure functionality, quality, and performance</li><li data-start="757" data-end="824">Troubleshoot, debug, and upgrade existing software as necessary</li><li data-start="825" data-end="882">Apply best practices for security and data protection</li><li data-start="883" data-end="932">Produce comprehensive technical documentation</li></ul><h3 data-start="934" data-end="961">Development Environment</h3>Languages: Java, Kotlin, JavaScript, TypeScript, Go, C#, etc. Frameworks: Spring, Vue.js, Nuxt.js, .NET Framework, etc. Infrastructure: AWS, GCP, AzureTeam Structure: Project teams typically consist of 5-8 members, including members from client development teams. Each team is supported by at least one highly skilled senior engineer to promote skill development through pair programming and other collaborative practices. This role emphasizes long-term development beyond simple coding tasks.<h3 data-start="1484" data-end="1508">Development Approach</h3>Our approach emphasizes agile development, moving away from the traditional waterfall methodologies commonly used in Japan's financial industry. Most projects begin at the upstream stage through direct contracts, allowing high flexibility in defining "what to build." You will work closely with the client's development team to discuss and decide on technology choices. Responsibilities cover the entire software development lifecycle, including requirements analysis, design, implementation, testing, deployment, and delivering the solution to users.<h3 data-start="2063" data-end="2090">Required Qualifications</h3><ul data-start="2092" data-end="2410"><li data-start="2092" data-end="2252">Experience with one or more of the following frameworks or languages:<ul data-start="2166" data-end="2252"><li data-start="2166" data-end="2191">Spring (Java or Kotlin)</li><li data-start="2194" data-end="2222">Vue.js, Nuxt.js, or Quasar</li><li data-start="2225" data-end="2229">Go</li><li data-start="2232" data-end="2252">C# .NET, ASP.NET</li></ul></li><li data-start="2253" data-end="2329">Minimum 3 years of experience in software engineering or a related field</li><li data-start="2330" data-end="2410">For non-Japanese nationals: Business-level Japanese proficiency (N2 or higher)</li></ul><h3 data-start="2412" data-end="2440">Preferred Qualifications</h3><ul data-start="2442" data-end="2685"><li data-start="2442" data-end="2513">Hands-on experience with cloud platforms such as AWS, GCP, or Azure</li><li data-start="2514" data-end="2579">Proven experience working in a collaborative team environment</li><li data-start="2580" data-end="2618">Conversational English proficiency</li><li data-start="2619" data-end="2685">Participation in product development from the conceptual stage</li></ul><h3 data-start="2687" data-end="2714">Ideal Candidate Profile</h3><ul data-start="2716" data-end="2786"><li data-start="2716" data-end="2786">Excellent communication skills and a strong commitment to teamwork</li></ul><h3 data-start="2788" data-end="2808">Example Projects</h3>Development of APIs for Financial Services Frontend: TypeScript / Angular / Ionic Backend: Go, Kotlin / Spring Authentication: OAuth 2.0 / OpenID Connect / FAPIIn-House Payment System Development for Retailers Backend: Go, Java Infrastructure: GCP, Kubernetes (GKE), microservicesDevelopment of Online-Only Financial Services for Major Institutions Frontend: TypeScript / Vue.js Backend: C# / .NET Core, ASP.NET Authentication: OAuth 2.0Modernization of Core Banking Systems Backend: Java / Kotlin Spring Infrastructure: Azure / GCP (multi-cloud) Reference Number: 06940-0013244624By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c3VlLnRpbmcuNTA4NzUuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-07-04T05:06:21Z

Software Engineer

Tokyo,
remote
Permanent
8.0M - 16.0M JPY / Yearly
Company Overview<ul><li>A venture company specializing in data utilization platforms in the social infrastructure domain.</li></ul>Job Description<ul><li>Hiring for a Senior Software Engineer position.</li><li>This role is part of a company dedicated to supporting the transformation of enterprise businesses in the deeply interconnected areas of urban infrastructure, healthcare, and public systems, under the philosophy of "turning data into people's energy."</li><li>You will not only act as a technical expert but also deeply engage with both business and social structures, playing a central role in product development.</li></ul>Attractions of the PositionLeading Social Transformation through Product Development:<ul><li>Engage with businesses and municipalities to address societal issues and contribute to fundamental problem-solving through products.</li></ul>Opportunity to "Socially Implement" Cutting-Edge Technology:<ul><li>Gain hands-on experience integrating the latest tech stacks into actual services, including RAG-based generative AI and AI agents, DataOps, Kubernetes, Apache Pulsar, among others, while setting new industry standards.</li></ul>Team Composition Valuing Expertise and Diversity:<ul><li>Collaborate with experts across data, serving, and infrastructure domains, with opportunities to transverse a wide range of technical fields.</li></ul>Flexible Work Styles and Robust Benefits:<ul><li>With a flexible work system, full remote work options, side job allowance, and extensive leave policies, the environment supports long-term career development.</li></ul>Main Responsibilities (Examples):<ul><li>Design, develop, and improve core functions of the data platform and related systems.</li><li>Batch/streaming processing, data warehouse design, ETL/ELT pipeline construction.</li><li>BFF (Backend for Frontend) and front-end development (React/Next.js), contributing to UX design from a technological perspective.</li><li>Design and operate secure, scalable architectures (AWS, Kubernetes, Terraform, etc.).</li><li>Lead technical initiatives within the team, perform code reviews, and improve quality.</li></ul>Qualifications[Required]:<ul><li>Hands-on development experience in at least one of the following: Java, Kotlin, Python, or TypeScript.</li><li>Experience in end-to-end delivery, from system design to operations.</li><li>At least 3 years of practical experience in data pipeline development and operation.</li><li>Demonstrated technical leadership in a team of medium or larger size.</li></ul>[Preferred]:<ul><li>Experience in data engineering and AI/ML utilization.</li><li>Knowledge of design and operation in container environments such as Kubernetes and Docker.</li><li>Development experience for B2B products or enterprise-focused solutions.</li><li>Ability to abstract and materialize specifications based on business requirements.</li></ul>Location:<ul><li>Tokyo, Japan</li></ul>Salary:<ul><li>8,000,000 - 16,000,000 JPY annual salary.</li></ul>Employment Conditions (Excerpts):<ul><li>Work Style: Discretionary labor system for professional work/full remote optional/side jobs allowed.</li><li>Location: Minato-ku, Tokyo (Directly connected to Toranomon Hills). No transfers.</li><li>Annual Salary Range: Determined flexibly based on experience and skills (upper ranges available).</li><li>Benefits: Book purchase support, "Gacha lunch" subsidy, babysitting support, diverse leave policies, etc.</li><li>Work Equipment: Company-provided PC/development environment customizable by engineers.</li></ul>Reference Number: 06940-0013266171By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/U2hpbWFtdXJhLlNoaW5vYnUuMTEyMTAuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-07-25T06:09:15Z

Software Engineer

Tokyo,
remote
Contract
10.0M - 10.0M JPY / Yearly
Software Engineer - Data PlatformAbout the Role We are seeking a software engineer to join the data platform team. In this role, you will design, develop, and maintain critical systems that enable our data ingestion and processing pipelines. You will leverage modern cloud-based technologies to ensure that our data infrastructure remains secure, efficient, and highly reliable.Key Responsibilities<ul><li>Develop and maintain robust data ingestion pipelines capable of processing large-scale datasets.</li><li>Collaborate closely with the Security and Privacy teams to ensure compliance with relevant standards and regulations.</li><li>Conduct integration, end-to-end, and load testing to identify and resolve issues in data pipelines.</li><li>Use observability tools to monitor production systems, setting up alerts and tracking their performance effectively.</li><li>Troubleshoot and resolve bugs and performance bottlenecks within data processing systems.</li></ul>What We're Looking For<ul><li>Proficiency in programming with Kotlin or Java.</li><li>Experience with cloud technologies (e.g., AWS), microservices, and event-driven distributed system architectures.</li><li>Strong database expertise, including SQL, relational databases, and NoSQL solutions.</li><li>Familiarity with data streaming tools such as AWS Kinesis, Kafka, Flink, or Spark.</li><li>Hands-on experience with Snowflake for data warehousing.</li><li>A solid understanding of monitoring, troubleshooting, and performance optimization for production systems.</li></ul> Reference No.: 06940-0013272616By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/V2lsbC5GaXRjaC41NDcxNC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-09-05T04:37:49Z

Software Engineer (Python)

Tokyo,
remote
Permanent
8.0M - 12.0M JPY / Yearly
About this role:<ul><li>Design, develop, test, and maintain scalable software applications</li><li>Collaborate with cross-functional teams including product, design, and QA</li><li>Participate in code reviews and ensure adherence to coding standards</li><li>Contribute to architectural decisions and technical design discussions</li><li>Implement CI/CD pipelines and automate deployment processes</li><li>Monitor system performance and troubleshoot production issues</li></ul>** Our engineer team is very international, but during interview you are expected to speak both in English and Japanese Responsibilities:<ul><li>Proficiency in Python (Django), JavaScript, and TypeScript (React.js)</li><li>Experience working with a cloud platform (preferably Microsoft Azure)</li><li>Passionate about leveraging AI to accelerate innovation, streamline processes, and drive transformative outcomes across the organization</li><li>Strong problem-solving skills and adaptability in dynamic environments</li><li>Good communication and collaboration skills across teams</li><li>Exposure to Agile/Scrum development methodologies</li><li>Experience with API design and integration (REST, GraphQL)</li></ul>Salary8M - 12M JPYLocation Tokyo Reference Number: 06940-0013283726By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/TmFuY3kuWXVhbi40NDQ1Mi4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-08-20T07:29:46Z

Software Engineer - Java/Spring/AWS for Enterprise Solutions

Tokyo,
remote
Permanent
9.0M - 15.0M JPY / Yearly
WHY THIS OPPORTUNITY IS SPECIAL<ul><li>Enterprise transformation leadership - Guide teams building solutions the world's largest insurance companies</li><li>Rapid growth trajectory - Company approaching $1B revenue with aggressive expansion plans across APAC markets</li><li>Technical innovation at scale - Oversee cloud-native microservices architecture serving hundreds of global clients</li><li>Exceptional work-life balance - 21 paid vacation days from year one plus separate sick leave allowance</li><li>Ultimate work flexibility - Work from abroad for months annually plus hybrid Tokyo office model</li></ul>Job Responsibilities<ul><li>Design and develop new capabilities for enterprise software serving hundreds of companies globally</li><li>Build enterprise applications using Java, Spring Boot, ReactJS and modern AWS-based architecture</li><li>Guide technical oversight of cloud-native platforms built with Docker, Kubernetes, and Terraform</li><li>Enhance existing products while architecting completely new solutions for regional business requirements</li><li>Participate in full development lifecycle from planning through deployment and showcasing results</li><li>Contribute to CI/CD pipelines using TeamCity, Jenkins, and Docker for streamlined delivery</li></ul>QualificationsEssential Requirements:<ul><li>Experience in enterprise software systems with expertise in data modeling and system architecture (5+ years)</li><li>Strong Java development skills using Spring, Spring Boot, JUnit, Mockito, Gradle/Maven</li><li>Experience with CI/CD tools and containerization technologies like Docker</li><li>Solid English and Japanese communication abilities for global team collaboration (daily operations conducted primarily in Japanese)</li><li>Japan work authorization (permanent resident, citizen or valid work visa)</li></ul>Bonus Points:<ul><li>ReactJS or frontend development experience</li><li>AWS, GCP or Azure cloud platform knowledge</li><li>Open door policy advocate who thrives in flat organizational structures with direct leadership access</li><li>Domain knowledge in insurance or financial services</li></ul>Location TokyoSalary9 - 15 million yen Reference Number: 06940-0013301830 By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/S2hhbmcuTGUuOTY0MDguMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-09-19T06:53:53Z

Software Engineer (Experienced) - Python, Java, PHP

Tokyo,
remote
Permanent
8.0M - 10.0M JPY / Yearly
Position Overview Depending on your experience, you will be involved in a range of responsibilities, including: <ul><li>New development and feature enhancement of core systems (e.g., contract, billing, and payment management) </li><li>Design and development of new web services and APIs, including UI/UX improvements </li><li>Backend API development and modification for mobile applications </li><li>System planning for new business initiatives, requirement analysis, and QCD management </li><li>Full-cycle involvement from system and infrastructure design through development, testing, and operations/maintenance </li><li>Working in a hybrid internal/external development team structure, selecting the best technologies and team composition per project. You'll also participate in deciding tech stacks and architecture. </li></ul><hr /><h4>Work Environment</h4><ul><li>Team Size: Approx. 30 members </li><li>Technologies: AWS (ECS, Lambda, etc.), Docker, Laravel, Spring, Flutter, Terraform, Datadog </li><li>Working Hours: 9:00-18:00 (flexible hours available); some overtime </li><li>Work Style: 5-day workweek (weekends and national holidays off); 124 annual holidays; childcare and caregiving support systems available </li><li>Location: Office near Ueno Station (Tokyo) </li></ul><hr /><h4>What We're Looking For</h4><ul><li>5+ years of experience in web system and API development (using PHP or Java) </li><li>Experience developing in cloud environments </li><li>Skills in designing with performance and scalability in mind </li><li>Proactive problem-solver with a hands-on attitude toward improvement in team development </li><li>Curiosity and enthusiasm for learning new technologies </li></ul>Preferred qualifications include: <ul><li>Knowledge of AWS </li><li>Experience leading small teams </li><li>Experience setting up CI/CD pipelines </li><li>Background in energy-related system development </li></ul><hr /><h4>Career Paths</h4>You'll have the opportunity to grow not only as a technical expert but also in roles such as project management, system planning, or people management. Many of our current managers started as engineers, and we offer an environment where you can grow on both technical and business fronts. <hr />Annual Salary: ¥8,000,000 - ¥10,000,000 Reference Number: 06940-0013260037 By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/U2hpbWFtdXJhLlNoaW5vYnUuMjIyMTYuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-08-25T08:35:15Z

Sr. Software Engineer (Scala) - Full remote

Tokyo,
remote
Permanent
8.0M - 12.0M JPY / Yearly
Shape the Future of Digital Payments as a Senior Backend Engineer Are you ready to make a real impact on how millions of people shop online? Join a fast-growing Fintech innovator in Tokyo that's redefining the checkout experience. Here, your expertise will directly influence the evolution of digital payments-without the need for credit cards. If you're passionate about building robust systems and eager to see your work in action, this is your chance. What Makes This Opportunity Stand Out?<ul><li>Global, Inclusive Team: Collaborate with talented professionals from over 30 countries. Diversity isn't just a buzzword-it's the foundation of our creativity and success.</li><li>Flexible Workstyle: Choose where and when you work best. Whether you prefer a fully remote setup or the energy of our Tokyo office, you have full autonomy from day one.</li><li>Tech-Forward Environment: Tackle complex challenges using modern technologies like Rust and Scala, Kafka, and a microservices architecture. We encourage experimentation and continuous learning.</li><li>Growth & Ownership: Be involved in every stage of the software lifecycle, from concept to deployment. Your ideas matter and your leadership will help shape both products and the team.</li><li>Supportive Culture: We value open communication, knowledge sharing, and a healthy work-life balance. Enjoy complete flex time, weekends off, and a comprehensive benefits package-including retirement and pension plans.</li></ul>Your Role<ul><li>Lead and contribute to the design and development of scalable backend systems using Scala and other modern languages.</li><li>Drive projects from requirements gathering through to implementation, testing, and operation.</li><li>Collaborate with cross-functional teams to integrate with external APIs and financial products.</li><li>Mentor team members and help set technical direction.</li><li>Continuously improve system reliability, security, and performance.</li></ul>What We're Looking For<ul><li>Solid experience in backend development with languages such as Scala, Java, Kotlin, Rust or interest in Functional Programming</li><li>Proven ability to design new systems and enhance existing applications.</li><li>Strong communication skills in English; Japanese is a plus but not required.</li><li>Experience in Fintech or with functional programming is highly valued.</li><li>A proactive, collaborative mindset and a drive to make a difference.</li></ul>Salary<ul><li>8 million yen - 12 million yen</li></ul>Location<ul><li>Tokyo</li></ul>Reference number : 06940-0013257393By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/S2hhbmcuTGUuNzMwNjkuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-07-09T01:41:11Z

Sr Backend Engineer - Build the Future of enterprise AI

Tokyo,
remote
Permanent
10.0M - 15.0M JPY / Yearly
Ready to Shape the Future of Enterprise Data Management? Join a dynamic Tokyo-based technology company that's revolutionizing how Japan's largest enterprises handle their most valuable asset: data. We're seeking an exceptional Principal Backend Engineer to lead our technical excellence while building solutions that directly impact major corporations across Japan. WHY THIS OPPORTUNITY IS SPECIALJoin a Series A funded company with strong market position in enterprise data intelligence. Your work will directly impact how major Japanese corporations make data-driven decisions. Build with a modern tech stack: Go, React, AWS, OpenSearch, DynamoDB. Tackle challenges like scalable metadata systems, real-time data pipelines, and intelligent data discovery algorithms. Solve unique problems combining human collaboration with automated intelligence - creating systems that turn organizational behaviors into actionable insights for enterprise clients. As Principal Engineer, you'll architect cutting-edge solutions while mentoring a growing engineering team, shaping both technology and culture. WHAT YOU'LL DO You'll spearhead the development of our core data intelligence platform, ensuring exceptional quality while leading technical initiatives that serve Japan's most demanding enterprise clients:Drive architectural decisions and maintain excellence standards across our engineering organization Build robust, scalable backend systems using modern technologies including Go, Python, and cloud-native architectures Mentor engineers and foster a collaborative environment where innovation thrives Work closely with product leadership, sales, and customer success teams to ensure our technology meets real business needs Champion best practices that deliver the high-quality, intuitive experiences Japanese enterprise clients expect WHAT WE'RE LOOKING FOR Essential Requirements:10+ years of backend development expertise with proven track record in system architecture 5+ years leading development teams and driving technical excellence Strong experience with enterprise software development from concept to production Proficiency in modern programming languages (Go, Python, Java, or C++ preferred) Business-level English communication skills essential Currently based in Japan or hold a valid Japanese work visaBonus Points:Enterprise client-facing software development experience Data pipeline, analytics, or AI/ML technology background Japanese language capabilities Experience with data management or engineering platforms WHY YOU'LL LOVE WORKING HEREEnjoy hybrid work arrangements with 1-2 days in our conveniently located Tokyo office, plus flexible hours that respect work-life balance. Work in an international environment where all documentation is in English, bringing together diverse perspectives and expertise. Join during a pivotal growth phase where your contributions directly shape company direction and your own professional development. Your work powers critical decisions at some of Japan's most influential corporations, contributing to the country's digital transformation. Be part of a team that values novel approaches and cutting-edge solutions in the rapidly evolving data intelligence field. THE INTERVIEW EXPERIENCE We respect your time with a streamlined process: just two comprehensive interviews focusing on technical expertise and cultural alignment, with no coding tests required. Reference Number: 06940-0013273920By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/S2hhbmcuTGUuNzI3NDUuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-08-05T02:34:23Z

Software/Applications Architect

Tokyo,
remote
Permanent
20.0M - 20.0M JPY / Yearly
Company ProfileGlobal software company headquartered in UK About the Role Our client is looking for a Solution Architect to join our delivery team and lead the technical side of client projects. In this role, you'll design and guide the development of data-driven solutions for large enterprise clients.You'll work closely with internal teams and external stakeholders to make sure our solutions are technically sound, scalable, and aligned with client needs. You'll also help improve engineering practices and mentor other team members.What You'll Do<ul><li>Design reliable, scalable systems that meet technical and business needs.</li><li>Lead technical decision-making across multiple projects.</li><li>Act as a trusted advisor to clients, helping them get the most out of their data solutions.</li><li>Mentor engineers and support their growth.</li><li>Improve company-wide engineering practices.</li><li>Manage your own tasks and timelines across different projects.</li></ul> What We're Looking For<ul><li>A strong focus on delivering value to clients.</li><li>Experience leading enterprise system development-from design to deployment.</li><li>Hands-on coding experience with Spark, Scala, Java, or Python (production level).</li><li>Solid understanding of the software development lifecycle (testing, Git, best practices).</li><li>Strong background in designing data-driven applications with attention to performance and security.</li><li>Good knowledge of data quality, schema evolution, and rollback strategies.</li><li>Excellent communication skills, able to explain technical topics to non-technical people.</li><li>Fluency in both Japanese and English is required.</li></ul> Why You'll Enjoy Working with Us<ul><li>Work on important projects with large enterprise clients.</li><li>Use modern technology to solve real business problems.</li><li>Help shape the team's engineering culture and practices.</li><li>Enjoy a collaborative and international work environment.</li><li>Make a direct impact on the success of our clients and company. </li></ul>Location: Tokyo, Japan Salary: 20M JPY Reference Number: 06940-0013261703By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/aWt1bWkua2FuZGEuNzkyODYuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-08-05T05:41:03Z

Backend Engineer

Tokyo,
remote
Contract
11.9M - 11.9M JPY / Yearly
Client ProfileA group company of a global automobile manufacturer, specializing in software development for the mobility domain. The mission is to drive the future of mobility through cutting-edge technology and seamless integration of software and vehicles. The Role<ul><li>Daily monitoring and operational management to ensure the stable performance of software products</li><li>Smooth collaboration and communication within and across teams</li><li>Responding to user inquiries and providing technical support</li><li>Creating and maintaining documentation for technical specifications and operational procedures</li><li>Implementing minor bug fixes and feature enhancements</li><li>Designing and executing test cases to ensure product quality</li><li>Applying security patches and maintaining overall system security</li><li>Conducting code reviews to enhance code quality and share knowledge</li><li>Performance optimization and troubleshooting during incidents</li><li>Analyzing data and gathering feedback for continuous improvement of user experience and product quality</li><li>Participating in quarterly team reporting</li><li>Actively engaging in Agile (Scrum) development processes</li></ul>Salary Hourly rate: JPY 5,730Location Tokyo Reference Number：06940-0013251275 By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/VG9tb2UuTW91bnRlZXIuNDM2MjEuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-07-15T04:45:46Z

Technical Writer

Tokyo,
remote
Contract
10.0M - 10.0M JPY / Yearly
Position Overview:We are seeking a detail-oriented and technically proficient Technical Writer to join a cutting-edge mobility technology company. This role involves creating clear, accurate, and user-friendly documentation for software platforms, vehicle operating systems, and advanced mobility solutions. You will collaborate closely with engineers, product managers, and UX designers to ensure technical content supports both internal teams and external partners.Key Responsibilities:<ul><li>Develop and maintain technical documentation including API references, SDK guides, system architecture overviews, and user manuals.</li><li>Translate complex engineering concepts into accessible content for diverse audiences.</li><li>Work with cross-functional teams to gather information and validate technical accuracy.</li><li>Create and manage content for developer portals, internal knowledge bases, and partner integration guides.</li></ul>Qualifications:<ul><li>Proven experience as a technical writer in software, automotive, or mobility-related industries.</li><li>Strong understanding of software development, embedded systems, or automotive technologies.</li><li>Excellent written communication skills in English; Japanese proficiency is a plus.</li><li>Familiarity with documentation tools such as Markdown, Git, Confluence, or DITA.</li><li>Ability to work independently and manage multiple documentation projects.</li></ul>Preferred Skills:<ul><li>Experience documenting APIs, SDKs, or cloud-based platforms.</li><li>Background in mobility, autonomous driving, or smart city technologies.</li><li>Basic knowledge of programming languages (e.g., Python, C++, Java).</li><li>Experience working in Agile development environments.</li></ul>Reference Number 06940-0013286938By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/V2lsbC5GaXRjaC41NzM0NC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-09-12T05:47:22Z

Quality Assurance Testing Manager

Tokyo,
remote
Contract
7.2M - 7.2M JPY / Yearly
Job Opening: QA Test EngineerOur client is seeking a QA Test Engineer to join a dynamic and fast-paced technology team. In this role, you will be responsible for ensuring the quality and reliability of software products by designing and executing test strategies, collaborating with cross-functional teams, and driving continuous improvement in testing practices.Key Responsibilities<ul><li>Test planning & execution: Develop comprehensive test plans, design test cases, and execute them across multiple scenarios and functionalities.</li><li>Testing coverage: Conduct functional, regression, and performance testing to validate new features, safeguard existing functionality, and assess performance under different conditions.</li><li>Defect management: Identify, document, and track defects, providing clear and actionable feedback to ensure timely resolution.</li><li>Cross-team collaboration: Partner with developers, product managers, and stakeholders to align testing efforts and resolve issues efficiently.</li><li>Test automation: Build and maintain automated test cases using modern tools and frameworks to increase efficiency.</li><li>Code review participation: Contribute feedback on code quality and adherence to standards during reviews.</li><li>Documentation: Maintain clear and consistent documentation of test plans, cases, and results for knowledge sharing.</li><li>Continuous improvement: Suggest and implement process enhancements, tools, and methodologies to strengthen QA practices.</li></ul>Skills & Qualifications<ul><li>Strong analytical and problem-solving skills with the ability to design effective testing strategies.</li><li>Excellent communication skills to collaborate with both technical and non-technical team members.</li><li>Solid understanding of testing methodologies and experience with modern testing tools/frameworks.</li><li>Experience working in Agile development environments.</li><li>Knowledge of the Software Development Lifecycle (SDLC).</li><li>Familiarity with programming/scripting languages (a plus, especially for test automation).</li></ul>What's on Offer<ul><li>Competitive salary and benefits package.</li><li>Opportunity to work on cutting-edge projects in a collaborative, innovative environment.</li><li>Career growth potential in a supportive and international team culture.</li></ul>Monthly Salary600,000 yen LocationTokyo Reference Number: 06940-0013269631By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/YWhtYWQucm95YW5pLjg2MzkxLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-08-21T00:35:46Z

Site Reliability Engineer (SRE) - Manufacturing AI Platform

Tokyo,
remote
Permanent
8.0M - 11.0M JPY / Yearly
Tokyo, Japan | Remote-First | High-Impact Engineering Build the Future of Manufacturing Technology Join a fast-growing SaaS platform revolutionizing global manufacturing through cutting-edge AI and 3D CAD technology. We're transforming traditional procurement with innovative algorithms that optimize quality, cost, and delivery time across international supply chains. Our rapidly expanding platform serves major manufacturers worldwide, requiring rock-solid reliability as we scale from startup to industry leader. What Makes This Role Exceptional "High-Impact Engineering" Build scalable systems from scratch in a fast-paced startup environment within a 600+ person company Lead reliability initiatives for mission-critical manufacturing platforms processing real transactions Work directly with CTO and engineering leadership in a flat organizational structure Drive technical decisions that directly impact global manufacturing efficiency "Career Acceleration & Global Impact" Rapid career progression in flat organization with system-level project ownership Establish SRE practices and culture from the ground up Work with multinational teams from 15+ countries in English and Japanese Technical meetings conducted bilingually to support international collaboration "Core Responsibilities" Design Google Cloud-based architectures for manufacturing-scale workloads Build robust monitoring and observability systems using Datadog and modern tooling Establish SLI/SLO frameworks and lead incident response procedures Implement Infrastructure-as-Code using Terraform and Kubernetes Optimize CI/CD pipelines with GitHub Actions and ArgoCD Collaborate on microservices architecture using Rust, TypeScript, and Node.js Required Qualifications "Technical Foundation" 7+ years hands-on software development experience Proven SRE team experience or equivalent infrastructure reliability roles Expert-level cloud architecture design and operations (Google Cloud preferred) Production experience with Kubernetes and container orchestration Strong Infrastructure-as-Code practices and CI/CD pipeline development Web application development and production operations background Business-level Japanese communication skills "Valuable Additional Skills" Business-level English proficiency for international collaboration Distributed systems architecture and operations experience Backend development experience with statically-typed languages Advanced monitoring platform experience (Datadog, Prometheus, etc.) Experience building SRE culture within growing organizations SRE leadership experience in 50+ engineer organizations Why Choose Us "Technical Innovation" Work with cutting-edge manufacturing AI and 3D CAD processing technology Contribute to systems handling real manufacturing transactions at global scale Access modern tech stack including Rust, TypeScript, and advanced ML infrastructure Architect solutions for one of Japan's most innovative manufacturing companies"Professional Growth" Establish SRE practices in rapidly growing technology company Lead reliability initiatives for mission-critical manufacturing systems International exposure working with global manufacturing networks Family-friendly policies with 50% of employees being parents Salary: 8M-11MLocation: TokyoReference Number: 06940-0013260805By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/S2hhbmcuTGUuMzkzMDEuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-07-15T07:04:40Z

Technical Architect / Solution Architect

Tokyo,
remote
Permanent
10.0M - 16.0M JPY / Yearly
Job Opening: Staff Engineer / Technical Architect Division: ERP Cross-Functional Engineering / AI Strategy Office Location: Japan (Tokyo preferred; Osaka, Kyoto, Fukuoka also possible) Company Overview A leading Japanese fintech SaaS company providing a wide range of cloud services for individuals and enterprises. Its cloud-based ERP platform is a core offering, supporting accounting, payments, and business operations for mid- to large-sized enterprises. The company operates globally with engineering hubs in Japan and across Asia, and has a diverse international workforce. About the Division The ERP Cross-Functional Engineering Division was created to unify multiple ERP product teams and streamline development across the platform. Products include accounting, accounts payable, and other finance-related services. This division works closely with the AI Strategy Office, which leads efforts to embed AI across products. Together, they define architecture strategy and ensure scalability, reliability, and innovation in ERP and AI-integrated systems. The team is cross-regional and global, with about 250 engineers spread across Japan, India, Vietnam, and other locations. About the Position As a Staff Engineer / Technical Architect, you will play a critical role in shaping the architecture strategy across ERP and AI-integrated initiatives. This is a hands-on expert position (not a managerial role) where you will drive system design, guide teams, and directly contribute to infrastructure and architecture decisions. Responsibilities<ul><li>Define and execute architecture vision and strategy across ERP and AI projects</li><li>Build and lead a cross-product architect community (~10 engineers in the cross-functional unit)</li><li>Provide architectural guidance for ERP products such as accounting and payments</li><li>Mentor engineers on architecture and design practices</li><li>Lead and participate in technical design and code reviews</li><li>Collaborate with Scrum Masters and product teams to align development across multiple products</li><li>Introduce and evolve cloud infrastructure and DevOps practices</li><li>Drive AI integration into ERP systems in collaboration with the AI Strategy Office</li></ul> Required Skills <ul><li>Proven architecture and systems design expertise (distributed systems, domain-driven microservices, migrations/refactors)</li><li>Cloud infrastructure knowledge: AWS/Azure, multi-account design, VPC, IaC, cost optimization</li><li>Hands-on DevOps and infrastructure setup (introducing and leading infra projects, building environments from scratch)</li><li>Solid software development background (PM-only experience not sufficient)</li></ul> Preferred Skills<ul><li>Experience with Ruby (commonly used in ERP teams)</li><li>Security & compliance (zero-trust architectures, compliance frameworks, secret management)</li><li>Observability & reliability engineering (tracing, logging, SLO/SLA, load testing)</li><li>Mentoring and standardizing architecture across teams</li><li>AI development experience or use of AI tools in development</li></ul>Mindset<ul><li>Highly technical and hands-on expert</li><li>Able to balance deep engineering knowledge with pragmatic organizational needs</li><li>Excited about integrating AI into ERP architecture</li><li>Comfortable working in a global, distributed environment</li></ul>Language<ul><li>English: Required (global team communication)</li><li>Japanese: Not required, but helpful</li></ul>Compensation & Conditions<ul><li>Annual Salary: 10M - 16M JPY (target range for ideal candidates: 10M - 15M JPY)</li><li>Bonus: High Performance Bonus (based on evaluation and company performance)</li><li>Employment Type: Permanent employee</li><li>Work Style: Hybrid (min. 2 days/week in office, 3+ encouraged)</li><li>Work Hours: Discretionary Labor System; basic hours 9:30 - 18:30 (flexible)</li><li>Holidays: Weekends, national holidays, paid leave, seasonal leave, year-end/new year holidays</li></ul>Benefits:Full social insurance, housing/moving allowances, rent deduction, health checkups, book purchase support, corporate pension, stock ownership plan, partner service discounts (housekeeping, babysitting, language classes, etc.) Reference Number: 06940-0013282908By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/U2hpbWFtdXJhLlNoaW5vYnUuNTgzNzQuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-08-20T01:32:14Z

Product Manager (FS)

Tokyo,
remote
Permanent
10.0M - 15.0M JPY / Yearly
A high-growth, Series B-funded B2B fintech company is seeking an experienced Product Manager to lead the evolution of its trading and risk management platforms in the energy and commodities markets. With backing from top-tier global VCs and institutional investors, this firm is building digital infrastructure to transform Japan's energy markets-leveraging technology, market data, and financial innovation to reshape a ¥100 trillion opportunity. This is a rare opportunity to build and scale institutional-grade trading products in a mission-driven environment, working directly with quants, traders, engineers, and regulatory experts. You'll take end-to-end ownership of one or more products supporting energy trading, derivatives pricing, market data, and risk management. Your focus will be to design and execute a roadmap that scales user adoption, drives transaction volume, and delivers measurable business outcomes. Key Responsibilities Own and evolve the product roadmap for a trading or data platform used by institutional energy market participants Translate complex domain and user needs into clear, actionable product specs Conduct user research with traders, analysts, and risk teams to identify unmet needs Partner with engineering, design, and business stakeholders to deliver new features Monitor and analyze product KPIs; run experiments and drive iteration cycles Ensure alignment with regulatory frameworks and trading workflows in financial markets Champion the voice of the user, balancing innovation with stability and compliance Required Experience 3+ years of product management or equivalent experience in a financial service or fintech environment Strong understanding of trading systems, financial derivatives, and/or market infrastructure Demonstrated success in leading B2B product development in complex domains Experience working closely with software engineers and cross-functional teams Familiarity with project management principles and agile methodologies Preferred Experience building institutional trading platforms, ETRMs, or risk systems Background in commodities, energy, or complex financial instruments (e.g., swaps, futures, forwards) Comfort working with data-heavy applications (pricing models, time series data, etc.) Experience with user research or customer discovery in technical domains Who You Are Mission-driven and energized by shaping the future of large, regulated markets Thrive in ambiguity and fast-moving environments Not just a roadmap executor - you are a product thinker who actively identifies problems and drives solutions Collaborative and purpose-oriented, with a desire to build things that matter Work Culture & Benefits Remote-friendly culture with a Tokyo HQ (some in-office presence required during onboarding) Flexible hours (no core time; full flex) Comprehensive benefits: full social insurance, housing and family support, training/education reimbursement Generous vacation and leave, including unique 5-day refresh leave separate from annual PTO Stock options for long-term impact and ownership Why Join? Lead the product vision in a once-in-a-generation transformation of a trillion-yen market Work with a diverse team of top talent from energy, finance, and technology sectors Shape products at the intersection of trading, data, regulation, and sustainability Help create the future infrastructure of Japan's energy and commodities marketsReference Number: 06940-0013253161By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c3VlLnRpbmcuODk1OTQuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-07-02T01:41:46Z

Technical Solution Architect

Tokyo,
remote
Permanent
25.0M - 32.0M JPY / Yearly
Highlight - Drive high-impact global data initiatives that directly shape business strategy and decision-making - Be part of a a company recognized for its innovation in AI-powered decision intelligence - Join during a critical growth phase in Japan, with the opportunity to shape the local team, influence market strategy, and build something lasting from the ground up Company Overview Global AI-driven data technology company, is transforming how organizations use data to drive decisions. Originally focused on fighting financial crime, its platform now powers decision intelligence across various industries. Role You'll lead the technical design and delivery of complex, data-driven systems for enterprise clients. You'll work closely with internal teams and external stakeholders to ensure successful implementations, while also contributing to technical best practices. Key Responsibilities -Design and lead end-to-end solution architectures tailored to client needs - Guide internal teams and act as a trusted technical advisor to enterprise clients - Solve complex data and system integration challenges using modern tech stacks - Contribute to best practice development, mentoring, and technical leadership across teams Required Skills - Strong hands-on experience in technical delivery with coding ability in Spark, Scala, Java, or Python - Deep understanding of software development lifecycle, testing, version control, and design best practices - Expertise in building scalable, secure, and maintainable data-driven solutions - Fluent in both Japanese and English with excellent communication and client-facing skills Location: TokyoSalary: 25M - 32MReferene Number: 06940-0013273942By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/eXVpbmEua2FuYXphd2EuMTIyODcuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-08-04T08:26:23Z

Software Engineer

Tokyo,
remote
Permanent
7.0M - 12.0M JPY / Yearly
<h2 data-start="77" data-end="134">Join Us in Building the Future of Security Learning</h2>We are developing a system that enables people to efficiently and practically gain security knowledge, by personalizing learning based on each individual's skill level and activity history. Our engineering-driven team is at the heart of this initiative, creating impactful products that make real-world learning more effective.We're now looking to welcome two new engineers to the core development team driving this mission forward.<hr data-start="582" data-end="585" /><h2 data-start="587" data-end="623">Open Positions (1 person each)</h2><h3 data-start="625" data-end="666">① Backend & Infrastructure Engineer</h3>You'll be responsible for building and operating a robust, scalable, and secure infrastructure to support our product-mainly using Python and AWS.<h3 data-start="819" data-end="877">② Product Engineer (Feature & User Experience Focus)</h3>You'll work closely with the PdM and designers to create valuable features from scratch, building experiences that directly improve how users learn and grow.<hr data-start="1041" data-end="1044" /><h2 data-start="1046" data-end="1064">Why Join Us?</h2><h3 data-start="1066" data-end="1106">High autonomy in a close-knit team</h3>A nimble team structure where you can take initiative and focus deeply on development.<h3 data-start="1195" data-end="1235">Fully remote & flexible work style</h3>Work from anywhere, anytime. The only in-person requirement is for occasional team events.<h3 data-start="1328" data-end="1358">A learning-first culture</h3>We actively support continuous learning with book and exam subsidies, regular internal tech talks, and study groups.<h3 data-start="1481" data-end="1543">Real impact in the growing field of Security × Education</h3>You'll build a product that contributes directly to society, while expanding both your technical expertise and domain perspective.<hr data-start="1680" data-end="1683" /><h2 data-start="1685" data-end="1713">What We're Looking For</h2>We welcome candidates with the following skills and experience:<ul data-start="1784" data-end="2061"><li data-start="1784" data-end="1827">4+ years of web application development</li><li data-start="1828" data-end="1882">Backend experience in Python or TypeScript</li><li data-start="1883" data-end="1924">2+ years of development using AWS</li><li data-start="1925" data-end="2012">1+ year of experience with IaC tools like Terraform, CloudFormation, or Ansible</li><li data-start="2013" data-end="2061">Experience working in Agile or Scrum teams</li></ul>Experience in security or education is not required-but curiosity and a willingness to learn are highly valued!<hr data-start="2178" data-end="2181" /><h2 data-start="2183" data-end="2211">🛠 Our Tech Stack & Tools</h2>Languages & Frameworks Python (Django, DRF), TypeScript (Next.js, React)Infrastructure AWS (ECS, Lambda, CloudFormation, ECR), Terraform, DockerDatabase & Others PostgreSQL, Redis, Elasticsearch, GitHub Actions, SentryAI / LLM Azure OpenAITools We Use Slack, Miro, Figma, ChatGPT, Gather, Cursor, etc.<hr data-start="2554" data-end="2557" /><h2 data-start="2559" data-end="2580">Work Conditions</h2><ul data-start="2582" data-end="3213"><li data-start="2582" data-end="2643">Employment type: Full-time (4-month probation period)</li><li data-start="2644" data-end="2708">Annual salary: ¥7M-¥12M (based on experience and skills)</li><li data-start="2709" data-end="2798">Work style: Fully remote by default (with a Tokyo office), flexible working hours</li><li data-start="2799" data-end="2928">Time off: Weekends, national holidays, year-end/New Year, summer break, paid leave, and special leave (e.g., bereavement)</li><li data-start="2929" data-end="3213">Benefits:<ul data-start="2949" data-end="3213"><li data-start="2949" data-end="2974">Full social insurance</li><li data-start="2977" data-end="3009">Transportation reimbursement</li><li data-start="3012" data-end="3071">Annual health check (support for full medical checkups)</li><li data-start="3074" data-end="3108">Certification/learning support</li><li data-start="3111" data-end="3142">Internal recognition system</li><li data-start="3145" data-end="3178">Childcare and nursing support</li><li data-start="3181" data-end="3213">Stock ownership plan, and more</li></ul></li></ul> Reference Number: 06940-0013263495By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/U2hpbWFtdXJhLlNoaW5vYnUuNTg3MDAuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-07-18T00:10:25Z

Senior Front-end developer

Tokyo,
remote
Permanent
10.0M - 10.1M JPY / Yearly
Senior Front-end DeveloperCompany OverviewA global leader in AI-powered contract review solutions, adopted by companies and law firms worldwide.Job Description<ul><li>Develop and enhance front-end components of our proprietary products</li><li>Collaborate with UI/UX designers and back-end engineers</li><li>Design and implement fast, scalable web interfaces</li><li>Research and adopt cutting-edge technologies to improve code quality</li><li>Provide technical guidance to junior engineers</li></ul>Qualifications<ul><li>5+ years of front-end development experience</li><li>Hands-on experience with JavaScript frameworks such as React, Vue.js, or Angular</li><li>Proficiency in HTML5, CSS3, Git, Webpack</li><li>Strong understanding of UI/UX and performance optimization</li><li>Business-level English communication skills (for collaboration with global teams)</li></ul>Location<ul><li>Tokyo, Japan</li></ul>Reference Number06940-0013197256 By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/VmljdG9yaWFSeW8uOTk4NTUuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-09-02T05:58:39Z

Android Developer

Tokyo,
remote
Permanent
8.0M - 12.0M JPY / Yearly
Are you passionate about building products that impact hundreds of millions of users? Join a team developing the Android client for one of the most widely used communication apps in Japan and across Asia. This platform is evolving beyond messaging, integrating AI and diverse services to become an essential life platform for daily living. What You'll Do -Collaborate with project managers, UI/UX designers, data scientists, and business stakeholders to design, develop, and enhance Android client features. -Drive stability and performance improvements for an app relied upon daily by millions. -Participate in ongoing codebase improvements, refactoring, and performance optimization. -Contribute to the development environment, including CI automation and code review workflows. -Engage with user feedback to deliver meaningful product enhancements. -Work on a large-scale, mature codebase with opportunities to influence architecture and best practices. Who We're Looking For - Strong communicator in English OR Japanese. - Experience developing native Android applications using Kotlin and Java in a team environment (including code reviews). - Ability to propose and drive improvements across planning, development, and testing processes. - Eager to enhance team productivity through codebase, tooling, or knowledge sharing. - UI/UX design and development experience.Salary - 8 million yen - 12 million yen Location - TokyoReference number:06940-0013256389By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/V2F0dW55dS5TaXJpcGFpcm9qLjcyODc2LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-07-08T05:29:57Z

AI Agent Engineer

Tokyo,
remote
Contract
11.9M - 11.9M JPY / Yearly
Location: Tokyo Salary: ¥11,856,000 annual Reference Number:06940-0013272619<hr data-start="232" data-end="235" /><h3 data-start="237" data-end="263">Position Overview:</h3>We are looking for a skilled LLM Agent Engineer to join our AI team. In this role, you will drive the development and optimization of intelligent agent systems, focusing on improving agent performance, enhancing observability, and refining evaluation pipelines through data-driven approaches.<h3 data-start="562" data-end="591">Key Responsibilities:</h3><ul data-start="592" data-end="1507"><li data-start="592" data-end="715">Agent Performance Monitoring: Improve monitoring systems for AI agents to ensure optimal performance and reliability.</li><li data-start="716" data-end="834">LLM Evaluation Pipelines: Design and implement evaluation pipelines and benchmarks tailored to LLM applications.</li><li data-start="835" data-end="948">Operational Support: Resolve operational issues, ensuring continuous system stability and high performance.</li><li data-start="949" data-end="1066">Iterative Agent Improvement: Lead the enhancement of LLM agents based on performance metrics and user feedback.</li><li data-start="1067" data-end="1193">Agile Practices: Actively contribute to daily scrums, sprint planning, and sprint reviews. Reporting will be in English.</li><li data-start="1194" data-end="1303">Documentation: Maintain clear documentation of services and models for internal teams and stakeholders.</li><li data-start="1304" data-end="1404">Collaboration: Engage in daily communication through Slack and meetings, primarily in English.</li><li data-start="1405" data-end="1507">Code Reviews: Ensure high engineering standards through thorough documentation and code reviews.</li></ul><h3 data-start="1509" data-end="1541">Required Qualifications:</h3><ul data-start="1542" data-end="1937"><li data-start="1542" data-end="1650">Experience in LLM Agent development, particularly with frameworks like LangChain or LangGraph.</li><li data-start="1651" data-end="1751">Proven track record in developing AI/LLM evaluation pipelines and performance measurement systems.</li><li data-start="1752" data-end="1841">Strong background in software engineering, emphasizing maintainable and clean code.</li><li data-start="1842" data-end="1937">A data-driven mindset, with the ability to analyze and act on metrics to improve performance.</li></ul><h3 data-start="1939" data-end="1972">Preferred Qualifications:</h3><ul data-start="1973" data-end="2221"><li data-start="1973" data-end="2049">Familiarity with MCP (Model Context Protocol) or similar technologies.</li><li data-start="2050" data-end="2136">Knowledge of statistics and data science for advanced modeling and analysis.</li><li data-start="2137" data-end="2221">Experience with Databricks for data processing and machine learning workflows.</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/V2lsbC5GaXRjaC44NDA4MC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-09-04T04:28:26Z

Senior iOS developer

Tokyo,
remote
Permanent
1.2M - 1.2M JPY / Yearly
Salary: ¥1,200,000 Location: Tokyo JO:06940-0013209960Job Description:<ul data-start="283" data-end="673"><li data-start="283" data-end="346">Develop and maintain iOS apps for consumer-facing services.</li><li data-start="347" data-end="425">Implement new features and optimize existing ones based on business needs.</li><li data-start="426" data-end="482">Manage app submissions and updates to the App Store.</li><li data-start="483" data-end="563">Ensure stable operation through performance monitoring and issue resolution.</li><li data-start="564" data-end="619">Continuously improve code quality and architecture.</li><li data-start="620" data-end="673">Keep up with new tech trends and framework updates.</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/VmljdG9yaWFSeW8uNjU5NjIuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-09-04T01:29:08Z