38 results for Back End Engineer in Kawasaki, Kanagawa

Java Backend Engineer

Tokyo,
remote
Contract
8.5M - 8.5M JPY / Yearly
Client Profile Japanese multinational conglomerate company. (e-commerce, fintech, digital content, etc.)The Role<ul><li>Backend development for large-scale point systems</li><li>Design, code, review, test, and release web applications</li><li>Enhance and improve existing services and features</li><li>Introduce new architectures and refactor systems for scalability</li><li>Improve development environments (e.g., CI/CD, test automation)</li><li>Troubleshoot production issues and drive service reliability</li></ul>Your Skills Required Qualifications<ul><li>5+ years of Java development experience</li><li>Experience in designing and developing B2C services</li><li>Hands-on experience with relational databases (e.g., MySQL, Oracle, Clustrix)</li><li>Familiarity with Agile development methodologies</li><li>Experience using containers (e.g., Docker, Kubernetes)</li><li>English: Business level (TOEIC 800+ or equivalent)</li><li>Japanese: Not required</li></ul>Preferred Qualifications<ul><li>Experience designing high-traffic systems</li><li>Frontend development experience</li><li>CI/CD pipeline and test automation experience</li><li>Application deployment and operations experience (on-premises or public cloud)</li><li>Knowledge of NoSQL (e.g., Couchbase) or KVS</li><li>Experience collaborating with global teams</li><li>Familiarity with messaging systems (e.g., Kafka, RabbitMQ)</li></ul> LocationTokyo Hourly Salary 4,100 yen Reference Number: 06940-0013315544 By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjgyNTkwLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-10-31T03:45:46Z

Senior Backend Engineer

Tokyo,
remote
Permanent
10.0M - 16.0M JPY / Yearly
Client Profile: 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. Key Responsibilities: Design & develop core AI product (primarily Python) Build architectures for seamless multi-agent collaboration systems Implement high-performance, scalable multi-tenant runtime environments Optimize for real-time inference in cloud-native settings (GCP/Kubernetes) Collaborate with research teams to productize LLM advancements Technical leadership, process improvement & team mentoring Drive complex feature implementation and system performance optimization Requirements: Bachelor's/Master's in CS, AI, ML, Math, Physics or related 5+ years Python application development 3+ years machine learning (regression, classification, clustering, model evaluation) 3+ years NLP (NLTK, spaCy, Transformers, BERT, GPT fine-tuning) Cloud platforms (AWS/GCP/Azure) & containerization experience Business-level English OR Japanese proficiencySalary 10M - 16M JPYLocation Tokyo Reference Number: 06940-0013273193By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/TmFuY3kuWXVhbi4zNzA4My4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-08-04T07:35:14Z

Sr Backend Engineer - Build the Future of enterprise AI

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

Senior Front-end developer

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

Android Engineer

Tokyo,
remote
Permanent
10.0M - 10.0M JPY / Yearly
Job Order: 06940-0013209966 Location: Tokyo (Remote-first, but relocation to Japan required) Salary: ¥10,000,000 annually<hr data-start="317" data-end="320" /><h3 data-start="322" data-end="357">Position: Android Engineer</h3>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.<hr data-start="634" data-end="637" /><h3 data-start="639" data-end="668">Key Responsibilities:</h3><ul data-start="670" data-end="1130"><li data-start="670" data-end="761">Develop and maintain Android-based POS and Tap-to-Pay applications and SDK using Kotlin</li><li data-start="762" data-end="853">Collaborate with product managers and engineers to define and build new mobile features</li><li data-start="854" data-end="933">Partner with backend teams to ensure seamless mobile-to-server integrations</li><li data-start="934" data-end="1032">Participate in technical design reviews and contribute to the evolution of mobile architecture</li><li data-start="1033" data-end="1130">Contribute across the tech stack when needed (flexibility with languages/frameworks encouraged)</li></ul><hr data-start="1132" data-end="1135" /><h3 data-start="1137" data-end="1158">Requirements:</h3><ul data-start="1160" data-end="1554"><li data-start="1160" data-end="1233">3+ years of professional experience in mobile application development</li><li data-start="1234" data-end="1304">Proficiency with Android SDK and mobile development best practices</li><li data-start="1305" data-end="1369">Experience integrating RESTful APIs with mobile applications</li><li data-start="1370" data-end="1434">Strong understanding of UI/UX principles and design patterns</li><li data-start="1435" data-end="1512">T-shaped developer mindset - ability to contribute across technical areas</li><li data-start="1513" data-end="1554">Collaborative, team-oriented approach</li></ul><hr data-start="1556" data-end="1559" /><h3 data-start="1561" data-end="1586">Preferred Skills:</h3><ul data-start="1588" data-end="1794"><li data-start="1588" data-end="1636">Exposure to iOS development and architecture</li><li data-start="1637" data-end="1690">Familiarity with cross-platform mobile frameworks</li><li data-start="1691" data-end="1730">Business-level Japanese proficiency</li><li data-start="1731" data-end="1794">Previous experience working in or with Japanese organizations</li></ul><hr data-start="1796" data-end="1799" /><h3 data-start="1801" data-end="1818">Benefits:</h3><ul data-start="1820" data-end="2069"><li data-start="1820" data-end="1887">Remote-first work environment with Tokyo-based office available</li><li data-start="1888" data-end="1958">10 regular paid vacation days, plus 5 summer and 5 winter holidays</li><li data-start="1959" data-end="1979">Birthday holiday</li><li data-start="1980" data-end="2038">Self-learning budget to support continuous development</li><li data-start="2039" data-end="2069">Language training (Japanese)</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/S29qaS5ZYWdpbnVtYS4xODY0Ni4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-09-03T05:53:14Z

Software Engineer (Frontend)

Japan,
remote
Contract
5.0M - 7.0M JPY / Yearly
CLIENT HOT BUTTONS · Native-level Japanese communication for requirement discussions with Japanese enterprise customers · Full-stack mindset who can handle both frontend leadership and backend contributions to support rapid client delivery · TypeScript expertise as the core development language across all client projects · Agile-experienced engineer who can lead frontend development while adapting to client-specific requirements KEY REQUIREMENTS · 5+ years frontend engineering experience (MUST HAVE) · TypeScript and Next.js development experience (MUST HAVE) · Native-level Japanese proficiency for customer requirement discussions (MUST HAVE) · Basic backend development experience for full-stack contributions · Agile development experience · Japan resident with ability to work 9AM-6PM JST · Remote work capability with proactive communication skills TRADE-OFFS · Can accept basic backend experience if frontend leadership skills are strong · Will consider slightly less than 5 years experience if candidate has exceptional Next.js/TypeScript skills PRODUCT/PROJECT/TEAM Products/Projects: Professional Services division building customized web applications for enterprise clients using client's Platform (Headless ERP). Leading frontend development for client-specific business system implementations. Tech Stack/Tools: Next.js, TypeScript, Go, CUE, cel-go, Playwright, vitest, Docker, Terraform, Datadog, Auth0, GitHub Copilot, WebStorm, GoLand Team Structure: Small international team with 2 foreign engineers, growing Professional Services division Work Style: Agile development, fully remote with flexible hours, focus on client delivery and rapid iteration CHARACTER & CULTURE Company: Mission-driven startup focused on "democratizing product development" with innovative Headless ERP solutions for large enterprises. Values intellectual curiosity, ownership mindset, and open constructive feedback. Team: Small, collaborative team environment requiring proactive communication and self-starter attitude. Growing division with increasing client interaction opportunities.By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi4xNjE4Ny4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-10-03T01:14:44Z

Software Engineer

Tokyo,
remote
Contract
10.8M - 10.8M JPY / Yearly
Client Profile Our client is mobility technology company focused on building software platforms and infrastructure for future transportation systems.Overview We are seeking a skilled Software Engineer to join the mobile development team. In this role, you will design, implement, and enhance mobile app features with a focus on performance, stability, and user experience. You will collaborate with cross-functional teams, contribute to clean and scalable architecture, and continuously improve our codebase and development processes.Key Responsibilities<ul><li>Develop and implement mobile app features and UI using Flutter</li><li>Collaborate closely with backend, UX, and other mobile engineers in cross-functional teams</li><li>Independently or jointly develop and deliver new features</li><li>Conduct unit testing and UI regression testing to ensure app quality</li><li>Debug and fix issues to maintain app stability</li><li>Monitor app performance and identify opportunities for improvements</li></ul>Requirements<ul><li>3+ years of mobile app development experience (Android or iOS) in a professional environment</li><li>Experience with native app development (Kotlin, Swift) or Flutter (Dart)</li><li>If no Flutter experience, proven ability to quickly learn new frameworks (e.g., ReactJS, SwiftUI, Jetpack Compose)</li><li>Strong knowledge of Clean Architecture and general software architecture practices</li><li>Hands-on experience with refactoring and improving codebases</li><li>Proactive, innovative mindset with a passion for improving products and processes</li><li>Willingness to learn new technologies and share knowledge with the team</li></ul>Hourly Salary5,200 JPYLocation Tokyo Reference Number: 06940-0013287776By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjM2Nzc1LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-09-17T03:43:54Z

Software Engineer

Tokyo,
remote
Contract
11.9M - 11.9M JPY / Yearly
Ref No: 06940-0013287783 Location: Tokyo (Remote OK within Japan) Salary: ¥11,856,000<hr data-start="261" data-end="264" /><h3 data-start="266" data-end="297">What You'll Be Working On</h3>A social application with over 400,000 users (as of September 2024), focused on supporting a specific adult demographic. Built with modern AI technology and an intuitive UI/UX, the platform sees 1 match every 4 seconds and 1,000 new signups daily. It offers users a private and secure space to express concerns beyond their personal and professional environments.As a Full-Stack Web Developer, you will be responsible for designing, developing, and maintaining both new and existing features. You will collaborate with customer support and design teams to improve user experience. Strong skills in both frontend and backend development and familiarity with modern web technologies are required.<hr data-start="1016" data-end="1019" /><h3 data-start="1021" data-end="1043">Technology Stack</h3>Languages & Frameworks<ul data-start="1073" data-end="1296"><li data-start="1073" data-end="1116">TypeScript, JavaScript, Python, Node.js</li><li data-start="1117" data-end="1126">React</li><li data-start="1127" data-end="1139">DynamoDB</li><li data-start="1140" data-end="1165">Git (Version Control)</li><li data-start="1166" data-end="1197">GitHub (Project Management)</li><li data-start="1198" data-end="1223">Slack (Communication)</li><li data-start="1224" data-end="1296">Jest, Amplify, GraphQL, AWS (ALB, EC2, Cognito, Lambda, S3), SCSS, SQL</li></ul><hr data-start="1298" data-end="1301" /><h3 data-start="1303" data-end="1342">Development Environment & Culture</h3>Team & Organization<ul data-start="1370" data-end="1569"><li data-start="1370" data-end="1408">Team size: Fewer than 10 engineers</li><li data-start="1409" data-end="1457">Engineers participate in performance reviews</li><li data-start="1458" data-end="1507">Monthly career check-ins with managers or CTO</li><li data-start="1508" data-end="1569">Engineers earning ¥8M+ annually without management duties</li></ul>Technical Culture<ul data-start="1595" data-end="1750"><li data-start="1595" data-end="1646">Engineers involved in executive decision-making</li><li data-start="1647" data-end="1700">Engineering leadership with technical backgrounds</li><li data-start="1701" data-end="1750">English communication opportunities available</li></ul>Developer Autonomy<ul data-start="1777" data-end="2079"><li data-start="1777" data-end="1830">End-to-end responsibility: design, build, operate</li><li data-start="1831" data-end="1887">Engineers drive technical debt and tool improvements</li><li data-start="1888" data-end="1925">Freedom to choose OS, editor, IDE</li><li data-start="1926" data-end="1964">Engineers estimate their own tasks</li><li data-start="1965" data-end="2013">Iterative development with flexible schedule</li><li data-start="2014" data-end="2079">Tech stack kept up-to-date (within 1 year of latest versions)</li></ul>Quality Assurance<ul data-start="2105" data-end="2323"><li data-start="2105" data-end="2151">Mandatory code reviews or pair programming</li><li data-start="2152" data-end="2191">Shared coding standards across team</li><li data-start="2192" data-end="2229">Multi-environment quality testing</li><li data-start="2230" data-end="2264">Continuous deployment/delivery</li><li data-start="2265" data-end="2323">Pull request-based workflows with full version control</li></ul><hr data-start="2325" data-end="2328" /><h3 data-start="2330" data-end="2355">Scale & Performance</h3><ul data-start="2356" data-end="2465"><li data-start="2356" data-end="2388">Concurrent users: thousands+</li><li data-start="2389" data-end="2431">DB tables: tens of millions of records</li><li data-start="2432" data-end="2465">High traffic: thousands of RPS+</li></ul><hr data-start="2467" data-end="2470" /><h3 data-start="2472" data-end="2494">Work Environment</h3><ul data-start="2495" data-end="2668"><li data-start="2495" data-end="2528">Full remote work within Japan</li><li data-start="2529" data-end="2553">Mid-day break system</li><li data-start="2554" data-end="2626">Family-friendly: team includes engineers with preschool-age children</li><li data-start="2627" data-end="2668">Flextime or discretionary work system</li></ul><hr data-start="2670" data-end="2673" /><h3 data-start="2675" data-end="2699">Benefits & Support</h3><ul data-start="2700" data-end="2845"><li data-start="2700" data-end="2765">Conference participation supported (tickets + business trips)</li><li data-start="2766" data-end="2809">Preferred-spec PC and displays provided</li><li data-start="2810" data-end="2845">Open to new graduate developers</li></ul><hr data-start="2847" data-end="2850" /><h3 data-start="2852" data-end="2877">Required Experience</h3>Must-Have<ul data-start="2895" data-end="3055"><li data-start="2895" data-end="2923">Performance optimization</li><li data-start="2924" data-end="2950">Remote work experience</li><li data-start="2951" data-end="2989">Feature enhancements and additions</li><li data-start="2990" data-end="3027">Release and deployment operations</li><li data-start="3028" data-end="3055">New feature development</li></ul>Nice-to-Have<ul data-start="3076" data-end="3231"><li data-start="3076" data-end="3112">Bug identification and reporting</li><li data-start="3113" data-end="3139">Refactoring experience</li><li data-start="3140" data-end="3187">Experience with large-scale traffic systems</li><li data-start="3188" data-end="3231">Load balancing and scalability planning</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjEwOTQ5LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-09-19T01:57:22Z

Software Engineer

Tokyo,
remote
Contract
7.0M - 9.0M JPY / Yearly
LIENT HOT BUTTONS<ul><li>Someone who can take instructions and develop independently with critical thinking - not just following orders blindly but understanding the "why" behind tasks</li><li>Team-oriented mindset - actively contributes to team success rather than only pursuing individual achievements; comfortable in a collaborative 13-person multicultural environment</li><li>Not motivated primarily by overtime pay - team policy is not to aim for zero overtime, but this isn't a role for those looking to maximize earnings through OT</li></ul>KEY REQUIREMENTS<ul><li>MUST: Mastery of at least ONE of: Java, C/C++, or Go-Lang</li><li>MUST: Database development experience</li><li>MUST: Web application development experience (both frontend and backend)</li><li>MUST: Strong team communication skills - able to build good relationships with team members</li><li>MUST: Japanese native level with conversational English OR English native with business beginner Japanese minimum</li><li>WANT: React experience</li><li>WANT: Knowledge of architectural design data, especially BIM (Building Information Modeling)</li><li>NOTE: NO experience with BIM/CIM data handling or ACC (Autodesk Construction Cloud) app development required</li></ul>TRADE-OFFS<ul><li>No architectural/BIM knowledge needed - general coding skills with FE/BE knowledge is sufficient to perform the work effectively</li><li>Not looking for senior level - mid-level developers who can work independently based on instructions are perfectly suitable</li><li>Younger candidates welcome if they have solid fundamental skills</li><li>React experience is negotiable - can be learned on the job if candidate is strong in other required areas</li></ul>PRODUCT/PROJECT/TEAMProducts/Projects:<ul><li>Building digital data infrastructure for construction projects; developing web applications that utilize 3D models (both frontend and backend); creating digital data for buildings and infrastructure based on BIM/CIM data; providing this data to logistics and mapping teams for utilization across the organization</li></ul>Tech Stack/Tools:<ul><li>Java, C/C++, Go-Lang (need proficiency in at least one), React (preferred), BIM360/ACC (Autodesk), AWS, GitHub, G Suite, Slack, MS Office suite</li></ul>Team Structure:<ul><li>13 members total - 4 Japanese nationals, remainder are foreign nationals</li></ul>Work Style:<ul><li>Full onsite work at Nihonbashi office; daily communication primarily in Japanese, but technical meetings sometimes conducted in English; collaborative team environment; documents can be in English</li></ul>CHARACTER & CULTURETeam:<ul><li>Multicultural environment (13 members with diverse nationalities); values team collaboration over individual achievement; appreciates flexibility and positive attitude toward ad-hoc tasks; technical discussions sometimes in English, daily communication in Japanese; supportive atmosphere where younger members can grow</li></ul>Location TokyoSalary7 - 9 million yen Reference Number: 06940-0013308622By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi44NDc1My4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-10-03T01:10:45Z

QA Engineer (Automation)

Tokyo 23 wards,
remote
Permanent
10.0M - 10.0M JPY / Yearly
Overview We are seeking a QA Engineer to lead quality assurance across multiple products. This role involves ensuring product reliability, driving test automation, and leveraging technology such as AI to enhance testing efficiency and product value.Responsibilities<ul data-start="479" data-end="1122"><li data-start="479" data-end="567">Participate in requirements and design reviews to identify and mitigate risks early.</li><li data-start="568" data-end="656">Plan and execute QA activities for new features (EPICs/PBIs) and regression testing.</li><li data-start="657" data-end="740">Develop and operate test automation scripts and integrate with CI/CD pipelines.</li><li data-start="741" data-end="818">Analyze customer feedback and usage data to propose quality improvements.</li><li data-start="819" data-end="908">Monitor test progress, review deliverables, and lead continuous process improvements.</li><li data-start="909" data-end="969">Collaborate across teams to implement QA best practices.</li><li data-start="970" data-end="1122">(Future) Drive quality strategy at the product level, lead AI-powered testing initiatives, and design automation frameworks at the department level.</li></ul>Qualifications Required<ul data-start="1158" data-end="1265"><li data-start="1158" data-end="1196">3+ years QA engineering experience</li><li data-start="1197" data-end="1236">Hands-on test automation experience</li><li data-start="1237" data-end="1265">Agile testing background</li></ul>Preferred<ul data-start="1281" data-end="1457"><li data-start="1281" data-end="1332">3+ years SaaS development (frontend or backend)</li><li data-start="1333" data-end="1378">Experience with modeling and QCD concepts</li><li data-start="1379" data-end="1457">Knowledge of testing frameworks, CI/CD tools, and various QA methodologies</li></ul>Tech Stack<ul data-start="1476" data-end="1696"><li data-start="1476" data-end="1525">Languages: TypeScript, JavaScript, Python, C#</li><li data-start="1526" data-end="1552">Automation: Playwright</li><li data-start="1553" data-end="1624">Infrastructure: GCP, Azure, Google Workspace, Microsoft 365, Notion</li><li data-start="1625" data-end="1652">Version Control: GitHub</li><li data-start="1653" data-end="1696">Collaboration: Slack, Zoom, Google Meet</li></ul>Position Features<ul data-start="1722" data-end="1917"><li data-start="1722" data-end="1786">Involvement from early development stages to product release</li><li data-start="1787" data-end="1850">Exposure to AI-driven testing and cutting-edge QA practices</li><li data-start="1851" data-end="1917">Growth opportunities as a generalist across development and QA</li></ul> Reference No: 06940-0013222086By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c3VlLnRpbmcuMTYzNDUuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-08-29T01:07:03Z

Data Engineer

Tokyo,
remote
Contract
8.1M - 8.1M JPY / Yearly
JO: 06940-0013310510 Location: Tokyo Annual Salary: Around ¥8,112,000Department Overview: The department manages and provides master data across multiple business units, delivering value through data-driven development. It also develops solutions for generating and assigning master data, supporting a variety of use cases.Position Outline: This position is an engineering role within the Product Master Group, responsible for managing standardized product data to enable end-users to search and interact with structured information more efficiently.Responsibilities:<ul data-start="699" data-end="911"><li data-start="699" data-end="822">Full-stack responsibility for data infrastructure and products, including design, development, testing, and operations.</li><li data-start="823" data-end="911">For experienced candidates: contribute to requirements definition and system design.</li></ul>Required Skills:<ul data-start="936" data-end="1714"><li data-start="936" data-end="1036">4+ years of professional experience in Data Engineering or Software Engineering focusing on data</li><li data-start="1037" data-end="1107">Strong proficiency in Java and Spring Boot (version 1.8 or higher)</li><li data-start="1108" data-end="1187">Experience with unit testing (e.g., JUnit) and performance-conscious coding</li><li data-start="1188" data-end="1248">Experience creating batch applications using Spring Boot</li><li data-start="1249" data-end="1337">Experience with relational databases (e.g., MySQL) and NoSQL databases (e.g., HBase)</li><li data-start="1338" data-end="1427">Solid understanding of database schema design, SQL tuning, and performance evaluation</li><li data-start="1428" data-end="1566">Experience with cloud platforms (AWS, GCP, Azure) and related services (e.g., Dataflow, Dataproc, Cloud Functions, Bigtable, BigQuery)</li><li data-start="1567" data-end="1630">Experience with Linux operating systems and shell scripting</li><li data-start="1631" data-end="1714">Experience working in a team environment and collaborating on design and coding</li></ul>Preferred Skills:<ul data-start="1740" data-end="1993"><li data-start="1740" data-end="1824">Experience with large-scale data processing systems (e.g., Apache Spark, Hadoop)</li><li data-start="1825" data-end="1875">Experience with API development (RESTful APIs)</li><li data-start="1876" data-end="1952">Experience with containerization technologies (e.g., Docker, Kubernetes)</li><li data-start="1953" data-end="1993">Experience with TypeScript or Python</li></ul>Language Requirements:<ul data-start="2024" data-end="2099"><li data-start="2024" data-end="2052">Japanese: Conversational</li><li data-start="2053" data-end="2099">English: Business level (e.g., TOEIC 800+)</li></ul>Contract Terms:<ul data-start="2123" data-end="2212"><li data-start="2123" data-end="2212">Initial contract: 2 months, with 3-month extensions expected for long-term employment</li></ul>Working Hours & Holidays:<ul data-start="2246" data-end="2328"><li data-start="2246" data-end="2291">Weekdays: 9:00-17:30 (Break: 12:00-13:00)</li><li data-start="2292" data-end="2328">Weekends and public holidays off</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjU3MzU2LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-10-30T08:18:18Z

Data Engineer

Tokyo,
remote
Contract
7.9M - 7.9M JPY / Yearly
Location: Tokyo JO: 06940-0013315515 Annual Salary: JPY 7,904,000<h4 data-start="266" data-end="297">Department Overview:</h4>The Data Lakehouse Section is responsible for providing scalable Lakehouse platform solutions to support the business and operations of the organization. Our mission is to accelerate the use of data by providing flexible platforms that can host a wide range of data solutions.<h4 data-start="576" data-end="605">Position Overview:</h4>This position is focused on developing and managing data warehouse solutions using a Lakehouse platform on Azure. The role involves understanding business requirements, implementing data solutions, and supporting daily operations for the platform.<h4 data-start="855" data-end="887">Key Responsibilities:</h4><ul data-start="888" data-end="1306"><li data-start="888" data-end="1000">Develop and manage data warehouse solutions for business operations using Databricks and other relevant tools.</li><li data-start="1001" data-end="1088">Implement business requirements into the platform and ensure smooth daily operations.</li><li data-start="1089" data-end="1152">Design, implement, and optimize data pipelines and workflows.</li><li data-start="1153" data-end="1236">Collaborate with internal teams to troubleshoot and enhance platform performance.</li><li data-start="1237" data-end="1306">Support continuous improvement initiatives for data infrastructure.</li></ul><h4 data-start="1308" data-end="1335">Required Skills:</h4><ul data-start="1336" data-end="1770"><li data-start="1336" data-end="1397">3+ years of development experience, preferably with Python.</li><li data-start="1398" data-end="1471">Experience working with public cloud platforms (e.g., GCP, AWS, Azure).</li><li data-start="1472" data-end="1545">Proficiency in Databricks or similar platforms for big data processing.</li><li data-start="1546" data-end="1638">Ability to write clean, production-level code that is maintainable and easy to understand.</li><li data-start="1639" data-end="1770">Experience with common machine learning frameworks (e.g., TensorFlow, PyTorch) and libraries (e.g., scikit-learn, NumPy, pandas).</li></ul><h4 data-start="1772" data-end="1800">Preferred Skills:</h4><ul data-start="1801" data-end="2700"><li data-start="1801" data-end="1913">Experience with the deployment and training of machine learning models and MLOps tools (e.g., MLFlow, Seldon).</li><li data-start="1914" data-end="1979">Experience with RESTful APIs and batch processing applications.</li><li data-start="1980" data-end="2120">Familiarity with the full software development lifecycle, including agile development practices and using task management tools like JIRA.</li><li data-start="2121" data-end="2206">Experience with microservice development and operation using Docker and Kubernetes.</li><li data-start="2207" data-end="2282">Knowledge of big data technologies such as Spark, Kafka, Delta Lake, etc.</li><li data-start="2283" data-end="2352">Experience with data modeling and observability of data and models.</li><li data-start="2353" data-end="2418">Experience with production engineering practices such as CI/CD.</li><li data-start="2419" data-end="2464">Performance profiling and tuning expertise.</li><li data-start="2465" data-end="2550">Experience in developing distributed, scalable, and high-availability applications.</li><li data-start="2551" data-end="2630">Understanding of GPU-based applications, machine learning, and deep learning.</li><li data-start="2631" data-end="2700">Experience with orchestration tools such as Airflow, Kubeflow, etc.</li></ul><h4 data-start="2702" data-end="2732">Personal Qualities:</h4><ul data-start="2733" data-end="2968"><li data-start="2733" data-end="2789">Strong problem-solving skills and analytical thinking.</li><li data-start="2790" data-end="2849">Ability to collaborate effectively in a team environment.</li><li data-start="2850" data-end="2898">Eagerness to learn and apply new technologies.</li><li data-start="2899" data-end="2968">Goal-oriented and results-driven with a focus on achieving success.</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjAwNjIxLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-10-31T03:07:20Z

Software Engineer

Tokyo,
remote
Contract
9.4M - 9.4M JPY / Yearly
Location: Tokyo JO: 06940-0013313061 Annual Salary: JPY 9,360,000<h3 data-start="177" data-end="205">Position Overview:</h3>Handle technical support requests, triage problems, basic troubleshooting, and update the support knowledge base. Manage customer requirements, monitor progress, and communicate with internal teams.<h3 data-start="406" data-end="437">Key Responsibilities:</h3><ul data-start="438" data-end="660"><li data-start="438" data-end="492">Support request handling and basic troubleshooting</li><li data-start="493" data-end="519">Knowledge base updates</li><li data-start="520" data-end="574">Customer requirement tracking and status reporting</li><li data-start="575" data-end="603">System integration tasks</li><li data-start="604" data-end="631">Access right management</li><li data-start="632" data-end="660">Internal team coordination</li></ul><h3 data-start="662" data-end="688">Required Skills:</h3><ul data-start="689" data-end="825"><li data-start="689" data-end="714">Experience in C++</li><li data-start="715" data-end="748">ECU knowledge (preferred)</li><li data-start="749" data-end="782">System integration experience</li><li data-start="783" data-end="825">Basic hardware knowledge (preferred)</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/VG9tb2UuTW91bnRlZXIuNjk1MjguMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-10-31T03:34:42Z

Software Engineer (PHP Lead)

Tokyo,
remote
Contract
5.0M - 9.0M JPY / Yearly
CLIENT HOT BUTTONS <ul><li>AWS expertise at advisory/design level - not just operational knowledge but someone who can guide architectural decisions and provide technical consultation to the team</li><li>PHP skills matter - looking for someone with deep technical capability even if they have fewer than 5 years specifically in PHP</li><li>Bilingual communication ability specifically for coordination with Japanese-only development manager - needs business-beginner Japanese to handle technical discussions and team coordination</li></ul> KEY REQUIREMENTS <ul><li>MUST HAVE: AWS experience at technical advisory/design level (not just basic usage)</li><li>MUST HAVE: PHP skills (Laravel framework)</li><li>MUST HAVE: Japanese business-beginner level (J2) for coordination with development manager</li><li>MUST HAVE: English business conversation level (E2) for team communication</li><li>Linux setup, operation experience</li><li>NICE TO HAVE: GraphQL or REST API experience</li><li>NICE TO HAVE: Serverless development (Lambda, Functions)</li><li>NICE TO HAVE: RDB operation and tuning (MySQL, PostgreSQL)</li><li>NICE TO HAVE: Docker development environment construction</li></ul> TRADE-OFFS <ul><li>Can accept less than 5 years PHP experience if candidate has senior-level technical skills and capabilities</li><li>Flexible on start date - can wait until 2026 for the right candidate</li><li>Open to offshore candidates as long as they meet the Japanese language requirement (N2-N3 business-beginner level)</li></ul> PRODUCT/PROJECT/TEAM Products/Projects: Operating bilingual job search website supporting career transitions Tech Stack/Tools: Backend: PHP (Laravel/Phalcon), AWS ECS | Frontend: ES6, Sass, React, TypeScript, Next.js, Apollo, HTML5, CSS3 | Frontend Testing: Cypress | Database: MySQL, Amazon Aurora | Tools: Docker | Cloud: AWS | OS: macOS/Linux | Project Management: GitHub | Communication: Slack Team Structure: 5-person development team (2 junior + 2 mid-level + 1 contractor). Work Style: Team communication primarily in English. Hybrid work model with 1 day/week office attendance in Jimbocho. CHARACTER & CULTURE Company: Small-medium sized company (under 300 employees) with approximately 50% foreign staff. International and diverse workplace environment. Team: Highly international development team with multilingual environment. English is the primary team communication language, but Japanese capability needed for coordination with development manager. Mixed experience levels requiring someone who can provide technical leadership and mentorship. Reference Number: 06940-0013310500By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi4zMDQyMi4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-10-03T01:54:02Z

Tester Engineer

Tokyo,
remote
Contract
6.5M - 6.5M JPY / Yearly
Location: Tokyo | Annual Salary: ¥6.5M | Reference Number: 06940-0013296496A Tokyo-based team is looking for a QA professional to drive quality across multiple projects. This role focuses on metric-driven quality assurance, cross-team collaboration, and hands-on testing operations - including offshore coordination.<h3 data-start="458" data-end="477">What you'll do:</h3><ul data-start="478" data-end="1046"><li data-start="478" data-end="551">Monitor quality KPIs and investigate underlying trends or root causes</li><li data-start="552" data-end="628">Collaborate with Product and Dev teams to improve and clarify test specs</li><li data-start="629" data-end="721">Support performance culture by standardizing QA processes, especially for low performers</li><li data-start="722" data-end="796">Manage daily task assignments, including working with outsourced teams</li><li data-start="797" data-end="870">Lead multiple projects and coordinate both onsite and offsite efforts</li><li data-start="871" data-end="925">Create, execute, and manage test plans and designs</li><li data-start="926" data-end="998">Perform testing operations and coordinate with external QA resources</li><li data-start="999" data-end="1046">Deliver consistent reporting (daily & weekly)</li></ul>By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/VG9tb2UuTW91bnRlZXIuMzE5MjguMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
2025-09-26T00:55:15Z

Senior iOS developer

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

Senior Software Engineer (Open to Any Language)

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

Senior Linux Internals Engineer

Tokyo,
remote
Permanent
8.0M - 12.0M JPY / Yearly
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. Key Responsibilities<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> Qualifications<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> What's Offered<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> Unique Highlights 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.Salary 8M - 12M JPYLocation Tokyo Reference Number: 06940-0013289584By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/S29qaS5ZYWdpbnVtYS4zMDkxNC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-09-02T04:57:51Z

Software Engineer / Platform Architect

Tokyo,
remote
Contract
9.0M - 14.0M JPY / Yearly
KEY REQUIREMENTS · Backend: Experience in development of frameworks or APIs · Compute/Data: Familiarity with compute and data intensive applications · Programming: Professional experience in C++, Java, C#, and/or Python · Data Processing: Extensive background in large-scale batch and/or stream processing · Platform/DevOps: Experience automating builds, deployments, testing, environment lifecycle, and/or monitoring · Scripting: PowerShell/bat or Bash scripting experience · Infrastructure: Infra/DevOps with AWS and Kubernetes · Databases: Deep experience with RDBMS and/or NoSQL databases PRODUCT/PROJECT/TEAM Products/Projects: Building large-scale batch and stream processing platforms for a smart city project Tech Stack/Tools: AWS, Kubernetes, C++, Java, C#, Python, PowerShell/Bash, RDBMS/NoSQL. Nice to have: GoLang, Rust, Erlang/Elixir, Game Engines (Unity), Multi-agent simulators Work Style: Hybrid, 2-3x a weekReference No.: 06940-0013194436By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi41NzU0NC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-10-03T02:33:59Z

Software Engineer (Experienced) - Python, Java, PHP

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

Software Engineer

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

Data Engineer

Tokyo,
remote
Contract
5.0M - 7.0M JPY / Yearly
CLIENT HOT BUTTONS<ul><li>This team manages standardized product data that enables smoother end-user search experiences</li><li>Team operates 70% English, 30% Japanese - need someone comfortable in this bilingual environment without being slowed down by language barriers</li><li>Full-stack responsibility from design through operations - they want someone who can own the entire lifecycle, not just code</li></ul>KEY REQUIREMENTS<ul><li>MUST HAVE: 4+ years professional Data Engineering or Software Engineering with data focus</li><li>MUST HAVE: Strong Java and Spring Boot framework (version 1.8+) with unit testing and performance-conscious coding</li><li>MUST HAVE: Experience with both relational (MySQL) and NoSQL databases (HBase) including schema design and SQL tuning</li><li>MUST HAVE: Cloud platform experience (GCP preferred, AWS acceptable) with services like Dataflow, Dataproc, Cloud Functions, Bigtable, BigQuery</li><li>MUST HAVE: Linux OS and shell scripting experience</li><li>MUST HAVE: Team collaboration experience on detailed design and coding</li><li>LANGUAGE: Conversational Japanese (J4), Business English (E2)</li></ul>Products/Projects<ul><li>Product Master Group manages standardized and identified product data for commodity/item data, enabling end-users to search more smoothly with structured/organized data</li></ul>Tech Stack/Tools<ul><li>Java, Spring Boot 1.8+, MySQL, HBase, GCP (Dataflow, Dataproc, Cloud Functions, Bigtable, BigQuery), Linux, shell scripting. Nice to have: Apache Spark, Hadoop, Docker, Kubernetes, TypeScript, Python</li></ul>Work Style<ul><li>Full-stack responsibility covering design, development, testing, and operations. More experienced candidates contribute to requirements definition and system design. Team communication is 70% English, 30% Japanese</li></ul>Location TokyoSalary5 - 7 million yen Reference Number: 06940-0013302873By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi42ODAwNC4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-10-03T01:06:16Z

Software Engineer (Fullstack)

Tokyo,
remote
Contract
7.0M - 9.5M JPY / Yearly
CLIENT HOT BUTTONS<ul><li>Team culture fit - someone who works well in collaborative environments</li><li>Open to feedback - actively seeks and incorporates input from team members</li><li>Can articulate thought process - able to explain technical decisions and reasoning clearly</li></ul>KEY REQUIREMENTS<ul><li>5+ years web development experience</li><li>2+ years TypeScript and React experience</li><li>Web based full stack engineer (react / nodejs)</li><li>2+ years UI testing tools (Cypress) and API experience</li><li>1+ years NodeJS or similar server technologies</li><li>Deployment infrastructure experience (AWS/GCP/Docker)</li><li>Full stack development with databases (PostgreSQL, MongoDB)</li><li>Source control (GitHub/GitLab) and CI/CD experience</li><li>No Japanese language requirement</li></ul>PRODUCT/PROJECT/TEAMProducts/Projects:<ul><li>AI Platform - a platform for AI growth, simplifying training, inference, MLops. Building safety, convenience and autonomy for automotive vehicles. The Portal is the primary interaction mode for all users.</li></ul>Tech Stack/Tools:<ul><li>TypeScript, React, NodeJS, AWS/GCP, Docker, PostgreSQL, MongoDB, Cypress, GitHub/GitLab</li></ul>Work Style:<ul><li>Hybrid 3x/week in office, collaborative development with PM and other engineers</li></ul>Location TokyoSalary7 - 9.5 million yen Reference Number: 06940-0013308616----- By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy" target="_blank">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi4yODk4Mi4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2025-10-03T04:30:21Z

Software Engineer (Java)

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

Software Engineer

Tokyo,
remote
Contract
10.0M - 10.0M JPY / Yearly
About the RoleJoin a forward-thinking team focused on building the future of mobility through software innovation. This role involves developing scalable, high-performance systems for applications ranging from embedded vehicle platforms to cloud-based services and autonomous technologies.Key Responsibilities<ul><li>Develop and maintain software components for mobility platforms and vehicle operating systems.</li><li>Collaborate with cross-functional teams including hardware engineers, designers, and product managers.</li><li>Contribute to system architecture and design discussions.</li><li>Implement automated testing and CI/CD pipelines to ensure software quality.</li><li>Research and apply emerging technologies to enhance system capabilities.</li></ul>Qualifications<ul><li>Bachelor's or Master's degree in Computer Science, Engineering, or a related field.</li><li>Strong programming skills in languages such as C++, Python, Rust, or Go.</li><li>Experience with cloud infrastructure (AWS, GCP, Azure) and containerization (Docker, Kubernetes).</li><li>Familiarity with embedded systems or automotive software standards is a plus.</li><li>Excellent problem-solving and communication skills.</li><li>English proficiency required; Japanese language skills are a plus.</li></ul>Preferred Experience<ul><li>Working with real-time systems or safety-critical software.</li><li>Contributing to open-source projects or large-scale software platforms.</li><li>Experience in agile development environments.</li></ul>Saraly: Hourly Rate: ¥5100-¥6120Reference Number: 06940-0013294835By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice <a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>. Please do not submit any sensitive personal data to us in your resume (such as such as race, beliefs, social status, medical history or criminal record) as we do not collect your sensitive personal data at this time.<hr />お客様が「今すぐ応募」ボタンをクリックすることにより、ロバート・ハーフ（以下、当社）がお客様の応募内容を処理し、求人情報を今後随時ご連絡する目的で個人情報を使用することに明示的に同意ただいたこととなります。当社による個人情報の処理方法、またお客様自身の個人情報へのアクセスおよびその訂正に関する詳細については、プライバシー規約（<a href="https://www.roberthalf.com/jp/ja/privacy">https://www.roberthalf.com/jp/ja/privacy</a>）をお読みください。当社は、要配慮個人情報はお預かりしておりませんので人種、信条、社会的身分、病歴、犯罪の経歴など、取扱いに特に配慮を要する個人情報は、ご提出いただく職務経歴書・レジュメ等に含めないようお願いいたします。<img src="https://counter.adcourier.com/c2Fvcmkua29kYWthLjg3ODM1LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2025-09-24T03:18:33Z