<p><strong>Software Engineer - Data Platform</strong></p><p><strong>About the Role</strong><br />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.</p><p><strong>Key Responsibilities</strong></p><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><p><strong>What We're Looking For</strong></p><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><p> </p><p>Reference No.: 06940-0013272616</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/V2lsbC5GaXRjaC41NDcxNC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
<p><strong>KEY REQUIREMENTS</strong></p><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><p><strong>PRODUCT/PROJECT/TEAM</strong></p><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><p><strong>CHARACTER & CULTURE</strong></p><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><p><strong>Location </strong></p><p>Tokyo</p><p><strong>Salary</strong></p><p>5 - 10 million yen</p><p> </p><p>Reference Number: 06940-0013293972</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi4zNjYwNi4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
<p><strong>Company Profile</strong></p><p>[Backend Engineer] Seeking a core member to support the growth of our enterprise SaaS product!<br />We are a leading data intelligence platform that is being adopted by major Japanese companies one after another. We are looking for a Backend Engineer to support the quality of our SaaS product, which is the core of our SaaS product, and help it evolve further.</p><p>Although we are a fast-growing startup, we have already developed and provided products that have been implemented by many enterprise customers, including prime listed companies. This is an ideal field for those who want to focus on "quality" as an engineer, and for those who seek both the speed and professionalism of a startup.<br /><br /></p><p><strong>Selling points</strong></p><ul><li>The value of being a Japanese engineer who is serious about usability for Japanese users</li><li>Collaboration with a global team where English is the common language</li><li>Work on the core of product development and experience continuous improvement and growth</li><li>Full Remote / Work from home Full remote or in-coming options. Flexible work style and a culture based on trust.</li></ul><p><strong>The Role</strong></p><ul><li>Development and improvement of back-end functionality with a focus on Golang</li><li>Localization proposals and implementation for an intuitive and easy-to-understand UX for Japanese users</li><li>Collaboration with other teams (front-end, PM, etc.) and technical documentation</li><li>Active participation in technical discussions and improvement proposals within the team</li><li>Implementation and review with high code quality in mind</li></ul><p><strong>Technology Stacks</strong></p><ul><li>Frontend: React, Remix, Tailwind CSS</li><li>Backend: Go (Goa framework)</li><li>Infrastructure: AWS, Vercel, Terraform Cloud</li><li>Authentication: Auth0, Cognito</li><li>Database: DynamoDB, OpenSearch</li><li>CI/CD: GitHub</li><li>Communication: Slack, Linear, Notion</li></ul><p><strong>Required Skills</strong></p><ul><li>Back-end development experience: 3+ years (working experience with Golang a plus)</li><li>Experience working in English (including speaking, reading and writing): 2+ years</li></ul><p><strong>Skills and Experience</strong></p><ul><li>Implementation of Japanese search functionality (e.g. Elasticsearch)</li><li>Knowledge of data management, analysis, and engineering</li><li>Experience developing and operating BtoB SaaS products</li><li>Experience working in a startup environment</li><li>Computer science degree</li></ul><p><strong>We welcome people like this</strong></p><ul><li>People who value teamwork and can take initiative</li><li>People who want to provide great value to society through Japan's first SaaS product</li><li>People who enjoy the discretion and speed of a startup</li><li>People who are excited about the future of enterprise data management</li><li>People who share our mission and vision You are excited about the future of enterprise data management You share our mission and vision</li></ul><p><strong>Location</strong></p><ul><li>In principle, remote work (in Japan)</li><li>Office work in Hamamatsucho, Minato-ku, Tokyo (nearest: Hamamatsucho Station) is also possible if desired.</li></ul><p>Reference number：06940-0013260015</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/U2hpbWFtdXJhLlNoaW5vYnUuODE1MDUuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p>🗾 Tokyo, Japan | 🏠 Full Remote | ⚡ Functional Programming Excellence<br /><br /><br />💰 Transform Digital Payments with Functional Programming<br /><br />Join our dynamic engineering team building next-generation payment gateway solutions that power thousands of merchants across Japan's diverse payment ecosystem. Our proprietary platform seamlessly integrates credit card processing with QR payment systems and bank transfers, creating unified experiences for businesses of all sizes.<br /><br /><br />✨ What Sets This Role Apart<br /><br /><br />🎯 Engineering Excellence & Autonomy<br /><br />Lead technical decisions in a flat organization where your voice shapes product direction<br />Work with production systems processing real transactions at scale<br />Collaborate in high-performing teams without corporate bureaucracy<br />Direct access to leadership for proposing improvements and driving initiatives<br /><br /><br />📈 Career Growth & Impact<br /><br />Expand functional programming expertise with industry-leading mentorship<br />Take ownership of entire system components from conception to deployment<br />Contribute to architectural decisions for large-scale distributed systems<br />Work across diverse technical challenges beyond traditional API development<br /><br /><br />⚖️ Work-Life Integration<br /><br />Complete location flexibility with full remote capabilities<br />Flexible scheduling respecting your optimal productivity hours<br />Strong retention culture - many engineers return for the autonomy and impact</p><p><br />🛠️ Core Responsibilities<br /><br />🏗️ Design resilient, scalable backend services for cloud-native payment processing<br />🔗 Implement robust API systems serving high-volume transaction flows<br />👥 Participate in code reviews and mentor team members<br />🔄 Drive continuous improvement initiatives across development workflows<br />🤝 Collaborate with cross-functional teams to deliver integrated solutions<br /><br /><br />✅ Required Qualifications<br /><br /><br />💻 Technical Foundation<br /><br />3+ years of object-oriented programming experience<br />1+ years of functional programming experience (Scala, Java, Kotlin preferred)<br />Strong API development and web service architecture background<br />Proficiency with relational database systems and query optimization<br />Experience with Git-based version control and collaborative development<br />Proven track record developing comprehensive automated test suites<br />Computer Science degree or equivalent technical background<br /><br /><br />🌟 Valuable Additional Skills<br /><br />📡 Event-driven architecture and messaging system implementation<br />🗄️ NoSQL database design and AWS cloud services experience<br />🔧 Microservices design patterns and CI/CD pipeline development<br />💼 Financial services domain knowledge<br />🌐 Open source contribution history<br />🗣️ Conversational Japanese ability for enhanced team collaboration<br /><br /><br />🎯 Why Choose Us<br /><br />🚀 Technical Innovation<br /><br />Work on systems processing real financial transactions at scale<br />Contribute to entirely in-house developed technology stack<br />Influence architectural decisions impacting thousands of merchants<br />Access cutting-edge functional programming practices</p><p><br />🌱 Professional Growth<br /><br />Transition from larger corporate environments to high-impact startup culture<br />Direct involvement in feature planning and business strategy discussions<br />Exposure to complete product development lifecycle<br />Join a community of developers who specifically returned for our collaborative environment</p><p>Ref No.: 06940-0013260806</p><p><br /> </p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/S2hhbmcuTGUuMjg2NTguMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<h3 data-start="179" data-end="203">Job Responsibilities</h3><ul data-start="205" data-end="932"><li data-start="205" data-end="286"><p data-start="207" data-end="286">Collaborate with the development team to create innovative software solutions</p></li><li data-start="287" data-end="387"><p data-start="289" data-end="387">Participate in technical decision-making, including framework and programming language selection</p></li><li data-start="388" data-end="462"><p data-start="390" data-end="462">Share expertise on selected technologies and development architectures</p></li><li data-start="463" data-end="549"><p data-start="465" data-end="549">Provide support for product development and implement in-house technical solutions</p></li><li data-start="550" data-end="626"><p data-start="552" data-end="626">Develop and manage high-performance systems, databases, and applications</p></li><li data-start="627" data-end="688"><p data-start="629" data-end="688">Create high-level APIs and write clear, maintainable code</p></li><li data-start="689" data-end="756"><p data-start="691" data-end="756">Test software to ensure functionality, quality, and performance</p></li><li data-start="757" data-end="824"><p data-start="759" data-end="824">Troubleshoot, debug, and upgrade existing software as necessary</p></li><li data-start="825" data-end="882"><p data-start="827" data-end="882">Apply best practices for security and data protection</p></li><li data-start="883" data-end="932"><p data-start="885" data-end="932">Produce comprehensive technical documentation</p></li></ul><h3 data-start="934" data-end="961">Development Environment</h3><p data-start="963" data-end="1132"><strong data-start="963" data-end="977">Languages:</strong> Java, Kotlin, JavaScript, TypeScript, Go, C#, etc.<br data-start="1028" data-end="1031" /> <strong data-start="1031" data-end="1046">Frameworks:</strong> Spring, Vue.js, Nuxt.js, .NET Framework, etc.<br data-start="1092" data-end="1095" /> <strong data-start="1095" data-end="1114">Infrastructure:</strong> AWS, GCP, Azure</p><p data-start="1134" data-end="1482"><strong data-start="1134" data-end="1153">Team Structure:</strong><br data-start="1153" data-end="1156" /> 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.</p><h3 data-start="1484" data-end="1508">Development Approach</h3><p data-start="1510" data-end="2061">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.</p><h3 data-start="2063" data-end="2090">Required Qualifications</h3><ul data-start="2092" data-end="2410"><li data-start="2092" data-end="2252"><p data-start="2094" data-end="2163">Experience with one or more of the following frameworks or languages:</p><ul data-start="2166" data-end="2252"><li data-start="2166" data-end="2191"><p data-start="2168" data-end="2191">Spring (Java or Kotlin)</p></li><li data-start="2194" data-end="2222"><p data-start="2196" data-end="2222">Vue.js, Nuxt.js, or Quasar</p></li><li data-start="2225" data-end="2229"><p data-start="2227" data-end="2229">Go</p></li><li data-start="2232" data-end="2252"><p data-start="2234" data-end="2252">C# .NET, ASP.NET</p></li></ul></li><li data-start="2253" data-end="2329"><p data-start="2255" data-end="2329">Minimum 3 years of experience in software engineering or a related field</p></li><li data-start="2330" data-end="2410"><p data-start="2332" data-end="2410">For non-Japanese nationals: Business-level Japanese proficiency (N2 or higher)</p></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"><p data-start="2444" data-end="2513">Hands-on experience with cloud platforms such as AWS, GCP, or Azure</p></li><li data-start="2514" data-end="2579"><p data-start="2516" data-end="2579">Proven experience working in a collaborative team environment</p></li><li data-start="2580" data-end="2618"><p data-start="2582" data-end="2618">Conversational English proficiency</p></li><li data-start="2619" data-end="2685"><p data-start="2621" data-end="2685">Participation in product development from the conceptual stage</p></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"><p data-start="2718" data-end="2786">Excellent communication skills and a strong commitment to teamwork</p></li></ul><h3 data-start="2788" data-end="2808">Example Projects</h3><p data-start="2810" data-end="2982"><strong data-start="2810" data-end="2856">Development of APIs for Financial Services</strong><br data-start="2856" data-end="2859" /> Frontend: TypeScript / Angular / Ionic<br data-start="2897" data-end="2900" /> Backend: Go, Kotlin / Spring<br data-start="2928" data-end="2931" /> Authentication: OAuth 2.0 / OpenID Connect / FAPI</p><p data-start="2984" data-end="3114"><strong data-start="2984" data-end="3037">In-House Payment System Development for Retailers</strong><br data-start="3037" data-end="3040" /> Backend: Go, Java<br data-start="3057" data-end="3060" /> Infrastructure: GCP, Kubernetes (GKE), microservices</p><p data-start="3116" data-end="3285"><strong data-start="3116" data-end="3188">Development of Online-Only Financial Services for Major Institutions</strong><br data-start="3188" data-end="3191" /> Frontend: TypeScript / Vue.js<br data-start="3220" data-end="3223" /> Backend: C# / .NET Core, ASP.NET<br data-start="3255" data-end="3258" /> Authentication: OAuth 2.0</p><p data-start="3287" data-end="3404"><strong data-start="3287" data-end="3328">Modernization of Core Banking Systems</strong><br data-start="3328" data-end="3331" /> Backend: Java / Kotlin Spring<br data-start="3360" data-end="3363" /> Infrastructure: Azure / GCP (multi-cloud)</p><p data-start="3287" data-end="3404"> </p><p data-start="3287" data-end="3404">Reference Number: 06940-0013244624</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/c3VlLnRpbmcuNTA4NzUuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p>Fullstack Platform Engineer<br />Location: Tokyo (Remote First)<br /><br />Interested in rolling up your sleeves to build an engine behind an AI-powered cybersecurity platform? We're looking for a seasoned Fullstack Platform Engineer to help us process billions of security events in real time, weave in smart analytics, and create clear, data-rich interfaces that keep enterprises one step ahead of complex security threats.<br /><br />What You'll Do<br />-Architect and implement scalable backend services and ETL pipelines (Kafka, ELK) in Rust, Go, Python, and TypeScript.<br />-Collaborate with ML and security teams to embed AI-driven threat detection and optimize system performance for millions of users.<br />-Build responsive front-end dashboards and tools using modern JavaScript frameworks.<br />-Enforce robust security measures (OAuth 2.0, encryption) and compliance with industry standards.<br />-Troubleshoot full-stack issues across cloud-native microservices, containers (Docker/K8s), and observability tools (Datadog, Vector).<br /><br />You Bring<br />-Bachelors in CS or related, with 5+ years in fullstack development.<br />-Proficiency in Rust and familiarity with Go, Python, Java, TypeScript.<br />-Strong cloud, microservices, and database (SQL/NoSQL) experience.<br />-A quick learner, excellent communicator, and a genuine passion for cybersecurity.<br /><br />Why Join Us?<br />Enjoy a collaborative environment, fully remote work arrangements, and a dedicated learning budget for certifications and conferences. Help us push the boundaries of cybersecurity innovation!</p><p> </p><p>Salary: 8M - 12M</p><p>Reference Number: 06940-0013251295</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/S29qaS5ZYWdpbnVtYS4wMzczMC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
<p>【Principal Backend Engineer】We are looking for a technical leader to play a central role in a fast-growing SaaS product!</p><ul><li>A fast-growing enterprise SaaS product that is being adopted by major companies. We are looking for a Principal Backend Engineer to lead the backend development and raise the team's technical capabilities and quality.</li><li>This is not just a "development lead," but a position where you can make decisions and exert influence across the three axes of technology, business, and organization.</li></ul><p><strong>Selling points</strong></p><ul><li>Technology and design decision-making authority to support mid- to long-term product growth</li><li>Bilingual engineering organization at the intersection of local and global</li><li>Deep involvement in strategy with an understanding of both product development and business</li><li>Flexible work style with flextime and remote work OK</li></ul><p><strong>The Role</strong></p><ul><li>Develop and improve back-end functionality and design reviews for our SaaS products</li><li>Improve code quality and design capabilities of the entire team and build a review culture</li><li>Technical and strategic collaboration with stakeholders (product, sales, support)</li><li>Lead high-quality localization for the Japanese market</li><li>Improve development process, Team development, formulation of design guidelines</li><li>Make and lead decisions with a mid- to long-term perspective, including technology selection and infrastructure design</li></ul><p><strong>Technology Stacks</strong></p><ul><li>Front-end: React, Remix, Tailwind CSS</li><li>Back-end: Go (Goa), Python</li><li>Infrastructure and CI/CD: AWS, GCP, Azure, Vercel, Terraform Cloud, GitHub</li><li>Database: DynamoDB,. OpenSearch, Databricks</li><li>Authentication infrastructure: Auth0, Amazon Cognito</li><li>Knowledge and documentation: Notion, Google Workspace</li><li>Communication: Slack, Linear</li></ul><p><strong>Required Skills and Experience</strong></p><ul><li>10+ years of back-end development experience (working experience in Go or Python preferred)</li><li>5+ years of experience leading development teams (including code review, design guidance, and training)</li><li>2+ years of practical communication (spoken and written) in English</li></ul><p><strong>Welcomed Skills and Knowledge</strong></p><ul><li>Experience developing and operating enterprise software products</li><li>Experience utilizing Japanese natural language processing, search algorithms, and AI technologies</li><li>Deep knowledge of data infrastructure design, ETL, and data governance</li></ul><p><strong>What we look for in a person</strong></p><ul><li>You can focus on the success and growth of the team as much as your own achievements</li><li>You want to be involved in the product from both a technical and business perspective</li><li>You have the flexibility to enjoy the speed and change unique to startups</li><li>You are interested in the future of BtoB SaaS and enterprise data in Japan</li><li>You find a mission-driven environment challenging You are interested in the future of BtoB SaaS and enterprise data in Japan.</li></ul><p><strong>Work Environment</strong></p><ul><li>Working hours: Full remote available (hybrid system with option to come in 1-3 days a week)</li><li>Office location: Minato-ku, Tokyo (Hamamatsucho area)</li><li>Employment status: Full-time</li><li>Working hours: Flextime system (core hours 11:00-15:00)</li><li>Holidays: Weekends, holidays, annual paid vacation, special leave upon hire</li></ul><p>Reference number：06940-0013260019</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/U2hpbWFtdXJhLlNoaW5vYnUuMTgyNDAuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p>Senior Software Engineer (All Languages Welcome: Python, Java, Go, etc.)<br />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!<br /><br />🌟 WHY THIS OPPORTUNITY IS EXCEPTIONAL<br /><br />Pioneer next-generation financial systems - from core banking modernization to cashless payment platforms that impact millions of users daily<br />Work with bleeding-edge tech stack including cloud-native solutions, mobile technologies, and generative AI integration in financial services<br />Shape products from concept to production - join projects at the proof-of-concept stage and influence architectural decisions from day one<br />Agile development in traditional finance - break industry norms by implementing modern development practices in Japan's conservative financial sector<br />Small, high-impact teams (5-8 members) with dedicated senior engineers providing mentorship and pair programming opportunities<br />Direct client collaboration on requirements definition and system design, not just implementation work<br /><br />💻 WHAT YOU'LL BUILD<br /><br />Design and implement API-first financial solutions for third-party integrations using OAuth 2.0/OpenID Connect/FAPI standards<br />Develop microservices architectures on GCP/AWS/Azure for scalable payment processing systems<br />Create modern web applications using TypeScript, Vue.js, and mobile-first approaches with Ionic<br />Build core banking system modernization projects using Java/Kotlin Spring and multi-cloud infrastructure<br />Implement security-first development practices for financial-grade data protection<br />Write comprehensive technical documentation and knowledge transfer to global team members<br /><br />👩💻 WHO WE'RE SEEKING<br />Essential Experience:<br /><br />7+ years as a software engineer with proven track record in production systems<br />Hands-on expertise in one or more: Java, Go, Kotlin, C#, Javascript, Typescript, Python etc.<br />Cloud platform experience with AWS, GCP, or Azure<br />Team development experience with version control and collaborative workflows<br />Conversational English for international team communication<br />Experience building products from conception stage through full development lifecycle<br /><br />🎯 WHAT'S IN IT FOR YOU<br /><br />Accelerated career growth through diverse project exposure across multiple technology stacks<br />High social impact work improving Japan's financial infrastructure and promoting cashless society adoption<br />Multicultural engineering environment with global perspectives and cross-cultural collaboration skills<br />End-to-end ownership from architecture design through deployment and user delivery<br />Technology exploration opportunities to expand beyond your current programming language expertise<br />Mentorship from senior engineers in small team settings with personalized skill development</p><p>Reference No. : 06940-0013273964</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/c3VlLnRpbmcuMzUxMTguMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p data-start="176" data-end="315"><strong data-start="176" data-end="190">Job Order:</strong> 06940-0013209966<br data-start="207" data-end="210" /> <strong data-start="210" data-end="223">Location:</strong> Tokyo (Remote-first, but relocation to Japan required)<br data-start="278" data-end="281" /> <strong data-start="281" data-end="292">Salary:</strong> ¥10,000,000 annually</p><hr data-start="317" data-end="320" /><h3 data-start="322" data-end="357"><strong data-start="326" data-end="357">Position: Android Engineer</strong></h3><p data-start="359" data-end="632">Join a growing team focused on building cross-border payment solutions used by high-profile global platforms. As the first Android Developer in this role, you'll play a key part in shaping mobile payment products, including a new POS app, SDK, and tap-to-pay functionality.</p><hr data-start="634" data-end="637" /><h3 data-start="639" data-end="668"><strong data-start="643" data-end="668">Key Responsibilities:</strong></h3><ul data-start="670" data-end="1130"><li data-start="670" data-end="761"><p data-start="672" data-end="761">Develop and maintain Android-based POS and Tap-to-Pay applications and SDK using Kotlin</p></li><li data-start="762" data-end="853"><p data-start="764" data-end="853">Collaborate with product managers and engineers to define and build new mobile features</p></li><li data-start="854" data-end="933"><p data-start="856" data-end="933">Partner with backend teams to ensure seamless mobile-to-server integrations</p></li><li data-start="934" data-end="1032"><p data-start="936" data-end="1032">Participate in technical design reviews and contribute to the evolution of mobile architecture</p></li><li data-start="1033" data-end="1130"><p data-start="1035" data-end="1130">Contribute across the tech stack when needed (flexibility with languages/frameworks encouraged)</p></li></ul><hr data-start="1132" data-end="1135" /><h3 data-start="1137" data-end="1158"><strong data-start="1141" data-end="1158">Requirements:</strong></h3><ul data-start="1160" data-end="1554"><li data-start="1160" data-end="1233"><p data-start="1162" data-end="1233">3+ years of professional experience in mobile application development</p></li><li data-start="1234" data-end="1304"><p data-start="1236" data-end="1304">Proficiency with Android SDK and mobile development best practices</p></li><li data-start="1305" data-end="1369"><p data-start="1307" data-end="1369">Experience integrating RESTful APIs with mobile applications</p></li><li data-start="1370" data-end="1434"><p data-start="1372" data-end="1434">Strong understanding of UI/UX principles and design patterns</p></li><li data-start="1435" data-end="1512"><p data-start="1437" data-end="1512">T-shaped developer mindset - ability to contribute across technical areas</p></li><li data-start="1513" data-end="1554"><p data-start="1515" data-end="1554">Collaborative, team-oriented approach</p></li></ul><hr data-start="1556" data-end="1559" /><h3 data-start="1561" data-end="1586"><strong data-start="1565" data-end="1586">Preferred Skills:</strong></h3><ul data-start="1588" data-end="1794"><li data-start="1588" data-end="1636"><p data-start="1590" data-end="1636">Exposure to iOS development and architecture</p></li><li data-start="1637" data-end="1690"><p data-start="1639" data-end="1690">Familiarity with cross-platform mobile frameworks</p></li><li data-start="1691" data-end="1730"><p data-start="1693" data-end="1730">Business-level Japanese proficiency</p></li><li data-start="1731" data-end="1794"><p data-start="1733" data-end="1794">Previous experience working in or with Japanese organizations</p></li></ul><hr data-start="1796" data-end="1799" /><h3 data-start="1801" data-end="1818"><strong data-start="1805" data-end="1818">Benefits:</strong></h3><ul data-start="1820" data-end="2069"><li data-start="1820" data-end="1887"><p data-start="1822" data-end="1887">Remote-first work environment with Tokyo-based office available</p></li><li data-start="1888" data-end="1958"><p data-start="1890" data-end="1958">10 regular paid vacation days, plus 5 summer and 5 winter holidays</p></li><li data-start="1959" data-end="1979"><p data-start="1961" data-end="1979">Birthday holiday</p></li><li data-start="1980" data-end="2038"><p data-start="1982" data-end="2038">Self-learning budget to support continuous development</p></li><li data-start="2039" data-end="2069"><p data-start="2041" data-end="2069">Language training (Japanese)</p></li></ul><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/S29qaS5ZYWdpbnVtYS4xODY0Ni4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
<p><strong>Company Overview</strong></p><ul><li>A venture company specializing in data utilization platforms in the social infrastructure domain.</li></ul><p><strong>Job Description</strong></p><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><p><strong>Attractions of the Position</strong></p><p><strong>Leading Social Transformation through Product Development:</strong></p><ul><li>Engage with businesses and municipalities to address societal issues and contribute to fundamental problem-solving through products.</li></ul><p><strong>Opportunity to "Socially Implement" Cutting-Edge Technology:</strong></p><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><p><strong>Team Composition Valuing Expertise and Diversity:</strong></p><ul><li>Collaborate with experts across data, serving, and infrastructure domains, with opportunities to transverse a wide range of technical fields.</li></ul><p><strong>Flexible Work Styles and Robust Benefits:</strong></p><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><p><strong>Main Responsibilities (Examples):</strong></p><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><p><strong>Qualifications</strong></p><p><strong>[Required]:</strong></p><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><p><strong>[Preferred]:</strong></p><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><p><strong>Location:</strong></p><ul><li>Tokyo, Japan</li></ul><p><strong>Salary:</strong></p><ul><li>8,000,000 - 16,000,000 JPY annual salary.</li></ul><p><strong>Employment Conditions (Excerpts):</strong></p><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). <em>No transfers</em>.</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><p><strong>Reference Number:</strong> 06940-0013266171</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/U2hpbWFtdXJhLlNoaW5vYnUuMTEyMTAuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p data-start="158" data-end="259"><strong data-start="158" data-end="169">Ref No:</strong> 06940-0013287783<br data-start="186" data-end="189" /> <strong data-start="189" data-end="202">Location:</strong> Tokyo (Remote OK within Japan)<br data-start="233" data-end="236" /> <strong data-start="236" data-end="247">Salary:</strong> ¥11,856,000</p><hr data-start="261" data-end="264" /><h3 data-start="266" data-end="297">What You'll Be Working On</h3><p data-start="298" data-end="677">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.</p><p data-start="679" data-end="1014">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.</p><hr data-start="1016" data-end="1019" /><h3 data-start="1021" data-end="1043">Technology Stack</h3><p data-start="1044" data-end="1072"><strong data-start="1044" data-end="1070">Languages & Frameworks</strong></p><ul data-start="1073" data-end="1296"><li data-start="1073" data-end="1116"><p data-start="1075" data-end="1116">TypeScript, JavaScript, Python, Node.js</p></li><li data-start="1117" data-end="1126"><p data-start="1119" data-end="1126">React</p></li><li data-start="1127" data-end="1139"><p data-start="1129" data-end="1139">DynamoDB</p></li><li data-start="1140" data-end="1165"><p data-start="1142" data-end="1165">Git (Version Control)</p></li><li data-start="1166" data-end="1197"><p data-start="1168" data-end="1197">GitHub (Project Management)</p></li><li data-start="1198" data-end="1223"><p data-start="1200" data-end="1223">Slack (Communication)</p></li><li data-start="1224" data-end="1296"><p data-start="1226" data-end="1296">Jest, Amplify, GraphQL, AWS (ALB, EC2, Cognito, Lambda, S3), SCSS, SQL</p></li></ul><hr data-start="1298" data-end="1301" /><h3 data-start="1303" data-end="1342">Development Environment & Culture</h3><p data-start="1344" data-end="1369"><strong data-start="1344" data-end="1367">Team & Organization</strong></p><ul data-start="1370" data-end="1569"><li data-start="1370" data-end="1408"><p data-start="1372" data-end="1408">Team size: Fewer than 10 engineers</p></li><li data-start="1409" data-end="1457"><p data-start="1411" data-end="1457">Engineers participate in performance reviews</p></li><li data-start="1458" data-end="1507"><p data-start="1460" data-end="1507">Monthly career check-ins with managers or CTO</p></li><li data-start="1508" data-end="1569"><p data-start="1510" data-end="1569">Engineers earning ¥8M+ annually without management duties</p></li></ul><p data-start="1571" data-end="1594"><strong data-start="1571" data-end="1592">Technical Culture</strong></p><ul data-start="1595" data-end="1750"><li data-start="1595" data-end="1646"><p data-start="1597" data-end="1646">Engineers involved in executive decision-making</p></li><li data-start="1647" data-end="1700"><p data-start="1649" data-end="1700">Engineering leadership with technical backgrounds</p></li><li data-start="1701" data-end="1750"><p data-start="1703" data-end="1750">English communication opportunities available</p></li></ul><p data-start="1752" data-end="1776"><strong data-start="1752" data-end="1774">Developer Autonomy</strong></p><ul data-start="1777" data-end="2079"><li data-start="1777" data-end="1830"><p data-start="1779" data-end="1830">End-to-end responsibility: design, build, operate</p></li><li data-start="1831" data-end="1887"><p data-start="1833" data-end="1887">Engineers drive technical debt and tool improvements</p></li><li data-start="1888" data-end="1925"><p data-start="1890" data-end="1925">Freedom to choose OS, editor, IDE</p></li><li data-start="1926" data-end="1964"><p data-start="1928" data-end="1964">Engineers estimate their own tasks</p></li><li data-start="1965" data-end="2013"><p data-start="1967" data-end="2013">Iterative development with flexible schedule</p></li><li data-start="2014" data-end="2079"><p data-start="2016" data-end="2079">Tech stack kept up-to-date (within 1 year of latest versions)</p></li></ul><p data-start="2081" data-end="2104"><strong data-start="2081" data-end="2102">Quality Assurance</strong></p><ul data-start="2105" data-end="2323"><li data-start="2105" data-end="2151"><p data-start="2107" data-end="2151">Mandatory code reviews or pair programming</p></li><li data-start="2152" data-end="2191"><p data-start="2154" data-end="2191">Shared coding standards across team</p></li><li data-start="2192" data-end="2229"><p data-start="2194" data-end="2229">Multi-environment quality testing</p></li><li data-start="2230" data-end="2264"><p data-start="2232" data-end="2264">Continuous deployment/delivery</p></li><li data-start="2265" data-end="2323"><p data-start="2267" data-end="2323">Pull request-based workflows with full version control</p></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"><p data-start="2358" data-end="2388">Concurrent users: thousands+</p></li><li data-start="2389" data-end="2431"><p data-start="2391" data-end="2431">DB tables: tens of millions of records</p></li><li data-start="2432" data-end="2465"><p data-start="2434" data-end="2465">High traffic: thousands of RPS+</p></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"><p data-start="2497" data-end="2528">Full remote work within Japan</p></li><li data-start="2529" data-end="2553"><p data-start="2531" data-end="2553">Mid-day break system</p></li><li data-start="2554" data-end="2626"><p data-start="2556" data-end="2626">Family-friendly: team includes engineers with preschool-age children</p></li><li data-start="2627" data-end="2668"><p data-start="2629" data-end="2668">Flextime or discretionary work system</p></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"><p data-start="2702" data-end="2765">Conference participation supported (tickets + business trips)</p></li><li data-start="2766" data-end="2809"><p data-start="2768" data-end="2809">Preferred-spec PC and displays provided</p></li><li data-start="2810" data-end="2845"><p data-start="2812" data-end="2845">Open to new graduate developers</p></li></ul><hr data-start="2847" data-end="2850" /><h3 data-start="2852" data-end="2877">Required Experience</h3><p data-start="2879" data-end="2894"><strong data-start="2879" data-end="2892">Must-Have</strong></p><ul data-start="2895" data-end="3055"><li data-start="2895" data-end="2923"><p data-start="2897" data-end="2923">Performance optimization</p></li><li data-start="2924" data-end="2950"><p data-start="2926" data-end="2950">Remote work experience</p></li><li data-start="2951" data-end="2989"><p data-start="2953" data-end="2989">Feature enhancements and additions</p></li><li data-start="2990" data-end="3027"><p data-start="2992" data-end="3027">Release and deployment operations</p></li><li data-start="3028" data-end="3055"><p data-start="3030" data-end="3055">New feature development</p></li></ul><p data-start="3057" data-end="3075"><strong data-start="3057" data-end="3073">Nice-to-Have</strong></p><ul data-start="3076" data-end="3231"><li data-start="3076" data-end="3112"><p data-start="3078" data-end="3112">Bug identification and reporting</p></li><li data-start="3113" data-end="3139"><p data-start="3115" data-end="3139">Refactoring experience</p></li><li data-start="3140" data-end="3187"><p data-start="3142" data-end="3187">Experience with large-scale traffic systems</p></li><li data-start="3188" data-end="3231"><p data-start="3190" data-end="3231">Load balancing and scalability planning</p></li></ul><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjEwOTQ5LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
<p><strong>Client Profile </strong></p><p>Our client is mobility technology company focused on building software platforms and infrastructure for future transportation systems.</p><p data-start="136" data-end="533"><strong data-start="136" data-end="148">Overview<br /></strong><br data-start="148" data-end="151" /> 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.</p><p data-start="535" data-end="561"><strong data-start="535" data-end="559">Key Responsibilities</strong></p><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><p data-start="991" data-end="1009"><strong data-start="991" data-end="1007">Requirements</strong></p><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><p><strong>Hourly Salary</strong></p><p>5,200 JPY</p><p><strong>Location </strong></p><p>Tokyo </p><p> </p><p>Reference Number: 06940-0013287776</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjM2Nzc1LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
<p><strong>About this role:</strong></p><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><p>** Our engineer team is very international, but during interview you are expected to speak both in English and Japanese<br /><br /><br /><strong>Responsibilities:</strong></p><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><p><strong>Salary</strong></p><p>8M - 12M JPY</p><p><strong>Location </strong></p><p>Tokyo</p><p> </p><p>Reference Number: 06940-0013283726</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/TmFuY3kuWXVhbi40NDQ1Mi4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
<p><strong>Client Profile:<br /></strong>The client is an AI start-up in Tokyo which creates end to end AI/Data solutions to major domestic clients in Japan. We are looking for a senior backend engineer with hands-on development experience of creating AI products and keen interest towards this field.<br /><br /><strong>Key Responsibilities:</strong><br />Design & develop core AI product (primarily Python)<br />Build architectures for seamless multi-agent collaboration systems<br />Implement high-performance, scalable multi-tenant runtime environments<br />Optimize for real-time inference in cloud-native settings (GCP/Kubernetes)<br />Collaborate with research teams to productize LLM advancements<br />Technical leadership, process improvement & team mentoring<br />Drive complex feature implementation and system performance optimization<br /><br /><br /><strong>Requirements:</strong><br />Bachelor's/Master's in CS, AI, ML, Math, Physics or related<br />5+ years Python application development<br />3+ years machine learning (regression, classification, clustering, model evaluation)<br />3+ years NLP (NLTK, spaCy, Transformers, BERT, GPT fine-tuning)<br />Cloud platforms (AWS/GCP/Azure) & containerization experience<br />Business-level English OR Japanese proficiency</p><p><strong>Salary</strong><br />10M - 16M JPY</p><p><strong>Location</strong><br />Tokyo</p><p> </p><p>Reference Number: 06940-0013273193</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/TmFuY3kuWXVhbi4zNzA4My4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
<div class="--aL-612 "><div class="-Cg-644 " data-automation-id="questionContent"><div class="-Nr-646 "><div class="--ld-667"><div class="-Iv-698">Join a leading cross‑border payments team powering transactions for top global brands. Help us build a merchant‑facing iOS app from scratch, owning everything from onboarding flows and Tap‑to‑Pay to financial dashboards and reporting.<br /><br />What You'll Do<br /><ul><li>Architect, develop, and maintain a best‑in‑class iOS application</li><li>Collaborate with PMs, designers, backend and Android engineers to define and ship features</li><li>Establish coding standards, review technical designs, and ensure cross‑platform consistency</li><li>Integrate RESTful APIs and uphold mobile UI/UX best practices</li></ul><br />What You Bring<ul><li>3+ years of solid iOS development with modern SDKs</li><li>Working knowledge of Android (Kotlin) to drive platform alignment</li><li>Strong understanding of mobile UI/UX principles and Apple's design guidelines</li><li>A T‑shaped mindset-comfortable diving into backend or product discussions</li><li>Team‑player attitude and clear communication skills</li></ul><br />Bonus Points<br /><ul><li>Experience with React Native, Flutter, or other cross‑platform frameworks</li><li>Familiarity with Japanese business culture and intermediate Japanese language skills</li></ul><br />Perks & Benefits<br /><ul><li>Remote‑first culture with Tokyo relocation support</li><li>Competitive salary plus performance bonus</li><li>Flexible hours, generous PTO, regular hackathons and meetups</li><li>Direct influence on product vision and growth</li></ul><p><br />Location : Tokyo<br /> <br /><br />Reference No.: 06940-0013264350</p></div></div></div></div></div><div class="--aL-612 "> </div><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/S29qaS5ZYWdpbnVtYS42MjM5OC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
<p><strong>Client Profile</strong></p><p data-start="103" data-end="354">A 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.<br /> </p><p data-start="103" data-end="354"><strong>The Role</strong></p><ul><li><p style="display: inline !important;">Daily monitoring and operational management to ensure the stable performance of software products</p></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><p><strong>Salary </strong></p><p>Hourly rate: JPY 5,730</p><p><strong>Location</strong><br /> <br />Tokyo<br /> <br /> <br /> <br />Reference Number：06940-0013251275<br /> </p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/VG9tb2UuTW91bnRlZXIuNDM2MjEuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p>A global cybersecurity leader is seeking a Senior Linux Internals Engineer to join their endpoint team in Tokyo. In this role, you'll design and develop Linux kernel-level components and system features that power next-generation threat detection. You'll work closely with security experts, backend developers, and product managers to deliver secure, scalable, and high-performance solutions.<br /><br /><strong>Key Responsibilities</strong></p><ul><li>Design and optimize Linux kernel and system-level components for endpoint detection and response.</li><li>Conduct low-level debugging, performance profiling, and kernel-mode optimizations.</li><li>Collaborate with cross-functional teams to ensure secure, reliable delivery.</li><li>Review code and mentor engineers on Linux and C++ best practices.</li><li>Contribute to technical strategy and stay current with Linux kernel developments.</li></ul><p><br /><strong>Qualifications</strong></p><ul><li>5+ years in Linux systems programming with deep knowledge of kernel internals.</li><li>Expert-level C++ (11/14/17) and modern system-level programming.</li><li>Proficiency with debugging/profiling tools (GDB, perf, ftrace, strace, auditd).</li><li>Familiarity with Git, Make, CMake.</li><li>Preferred: eBPF, scripting (Python/Bash), containerization (Docker/Kubernetes), cybersecurity background, leadership in remote/distributed teams.</li></ul><p><br /><strong>What's Offered</strong></p><ul><li>Flexible hours with remote work options.</li><li>Strong focus on professional growth and continuous learning.</li><li>Collaborative and innovative team culture.</li></ul><p><br /><strong>Unique Highlights</strong><br />A rare opportunity to work at the intersection of Linux kernel engineering and cybersecurity, shaping technology with direct global impact. The company champions a culture of teamwork, resilience, inclusion, and bold innovation.</p><p><strong>Salary</strong> </p><p>8M - 12M JPY</p><p><strong>Location </strong></p><p>Tokyo</p><p> </p><p>Reference Number: 06940-0013289584</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/S29qaS5ZYWdpbnVtYS4zMDkxNC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
<p><strong>Shape the Future of Digital Payments as a Senior Backend Engineer</strong><br /><br />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.<br /><br />If you're passionate about building robust systems and eager to see your work in action, this is your chance.<br /><br /><strong>What Makes This Opportunity Stand Out?</strong></p><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><p><strong>Your Role</strong></p><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><p><strong>What We're Looking For</strong></p><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><p><strong>Salary</strong></p><ul><li>8 million yen - 12 million yen</li></ul><p><strong>Location</strong></p><ul><li>Tokyo</li></ul><p>Reference number : 06940-0013257393</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/S2hhbmcuTGUuNzMwNjkuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p><strong>Position Overview</strong><br /> <br /> Depending on your experience, you will be involved in a range of responsibilities, including:<br /> </p><ul><li>New development and feature enhancement of core systems (e.g., contract, billing, and payment management)<br /> </li><li>Design and development of new web services and APIs, including UI/UX improvements<br /> </li><li>Backend API development and modification for mobile applications<br /> </li><li>System planning for new business initiatives, requirement analysis, and QCD management<br /> </li><li>Full-cycle involvement from system and infrastructure design through development, testing, and operations/maintenance<br /> </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.<br /> </li></ul><hr /><h4><strong>Work Environment</strong></h4><ul><li><strong>Team Size:</strong> Approx. 30 members<br /> </li><li><strong>Technologies:</strong> AWS (ECS, Lambda, etc.), Docker, Laravel, Spring, Flutter, Terraform, Datadog<br /> </li><li><strong>Working Hours:</strong> 9:00-18:00 (flexible hours available); some overtime<br /> </li><li><strong>Work Style:</strong> 5-day workweek (weekends and national holidays off); 124 annual holidays; childcare and caregiving support systems available<br /> </li><li><strong>Location:</strong> Office near Ueno Station (Tokyo)<br /> </li></ul><hr /><h4><strong>What We're Looking For</strong></h4><ul><li>5+ years of experience in web system and API development (using PHP or Java)<br /> </li><li>Experience developing in cloud environments<br /> </li><li>Skills in designing with performance and scalability in mind<br /> </li><li>Proactive problem-solver with a hands-on attitude toward improvement in team development<br /> </li><li>Curiosity and enthusiasm for learning new technologies<br /> </li></ul><p><strong>Preferred qualifications include:</strong><br /> </p><ul><li>Knowledge of AWS<br /> </li><li>Experience leading small teams<br /> </li><li>Experience setting up CI/CD pipelines<br /> </li><li>Background in energy-related system development<br /> </li></ul><hr /><h4><strong>Career Paths</strong></h4><p>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.<br /> </p><hr /><p><strong>Annual Salary:</strong> ¥8,000,000 - ¥10,000,000<br /> <strong>Reference Number:</strong> 06940-0013260037<br /> </p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/U2hpbWFtdXJhLlNoaW5vYnUuMjIyMTYuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p><strong>WHY THIS OPPORTUNITY IS SPECIAL</strong></p><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><p><strong>Job Responsibilities</strong></p><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><p><strong>Qualifications</strong></p><p>Essential Requirements:</p><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><p>Bonus Points:</p><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><p><strong>Location </strong></p><p>Tokyo</p><p><strong>Salary</strong></p><p>9 - 15 million yen</p><p> </p><p>Reference Number: 06940-0013301830 </p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/S2hhbmcuTGUuOTY0MDguMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p>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.<br /><br />What You'll Do<br /><br />-Collaborate with project managers, UI/UX designers, data scientists, and business stakeholders to design, develop, and enhance Android client features.<br />-Drive stability and performance improvements for an app relied upon daily by millions.<br />-Participate in ongoing codebase improvements, refactoring, and performance optimization.<br />-Contribute to the development environment, including CI automation and code review workflows.<br />-Engage with user feedback to deliver meaningful product enhancements.<br />-Work on a large-scale, mature codebase with opportunities to influence architecture and best practices.<br /><br />Who We're Looking For<br /><br />- Strong communicator in English OR Japanese.<br />- Experience developing native Android applications using Kotlin and Java in a team environment (including code reviews).<br />- Ability to propose and drive improvements across planning, development, and testing processes.<br />- Eager to enhance team productivity through codebase, tooling, or knowledge sharing.<br />- UI/UX design and development experience.</p><p>Salary<br />- 8 million yen - 12 million yen</p><p><br />Location<br />- Tokyo</p><p>Reference number:06940-0013256389</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/V2F0dW55dS5TaXJpcGFpcm9qLjcyODc2LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
<p data-start="142" data-end="258"><strong data-start="173" data-end="183">Salary</strong>: ¥1,200,000<br data-start="195" data-end="198" /> <strong data-start="198" data-end="210">Location</strong>: Tokyo<br data-start="217" data-end="220" /> <strong data-start="220" data-end="237" data-is-only-node="">JO</strong>:06940-0013209960</p><p data-start="260" data-end="282"><strong data-start="260" data-end="279">Job Description</strong>:</p><ul data-start="283" data-end="673"><li data-start="283" data-end="346"><p data-start="285" data-end="346">Develop and maintain iOS apps for consumer-facing services.</p></li><li data-start="347" data-end="425"><p data-start="349" data-end="425">Implement new features and optimize existing ones based on business needs.</p></li><li data-start="426" data-end="482"><p data-start="428" data-end="482">Manage app submissions and updates to the App Store.</p></li><li data-start="483" data-end="563"><p data-start="485" data-end="563">Ensure stable operation through performance monitoring and issue resolution.</p></li><li data-start="564" data-end="619"><p data-start="566" data-end="619">Continuously improve code quality and architecture.</p></li><li data-start="620" data-end="673"><p data-start="622" data-end="673">Keep up with new tech trends and framework updates.</p></li></ul><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/VmljdG9yaWFSeW8uNjU5NjIuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p><strong>Company Profile</strong></p><p>Global software company headquartered in UK<br /><br /></p><p><strong>About the Role<br /></strong><br />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.</p><p>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.</p><p><strong>What You'll Do</strong></p><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><p> </p><p><strong>What We're Looking For</strong></p><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><p><strong><br />Why You'll Enjoy Working with Us</strong></p><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.<br /><br /></li></ul><p>Location: Tokyo, Japan<br /><br />Salary: 20M JPY<br /><br /><br />Reference Number: 06940-0013261703</p><p><em>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.</em></p><hr /><p>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。</p><img src="https://counter.adcourier.com/aWt1bWkua2FuZGEuNzkyODYuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
