<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><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>Job Responsibilities</strong></p><ul><li>Configure vehicles for ADAS systems, including sensor, PC, and ECU setup.</li><li>Perform operational checks and verify communication functionality.</li><li>Modify software (Matlab, C) to update communication interfaces between ADAS components and other ECUs/sensors.</li><li>Investigate methods for data acquisition from additional sensors (e.g., GNSS) and adapt communication interfaces as needed.</li><li>Diagnose and resolve issues in case of hardware malfunctions.</li><li>Identify malfunction sources and prepare detailed reports.</li><li>Execute component replacements and develop recurrence prevention strategies.</li><li>Install driver evaluation cameras and explore methodologies for data storage.</li><li>Analyze existing software and compile reports on findings.</li><li>Take part in evaluations involving actual vehicles.</li></ul><p><strong>Key Requirements</strong></p><ul><li><strong>Mandatory:</strong> Experience in embedded device development and working with measurement equipment.</li><li><strong>Mandatory:</strong> Proficiency in Matlab and C programming for application development and evaluation.</li><li><strong>Mandatory:</strong> Knowledge of Linux OS, including bash and command-line interface (CLI).</li><li><strong>Mandatory:</strong> Familiarity with communication protocols such as Ethernet, CAN, and CAN FD.</li><li><strong>Mandatory:</strong> Hands-on experience with analysis tools like CANoe.</li><li><strong>Mandatory:</strong> Ability to read and modify source code configuration files for system evaluation.</li><li><strong>Preferred:</strong> Understanding of sensor devices (e.g., cameras, G-sensors).</li><li><strong>Preferred:</strong> Experience with version control systems like Git.</li><li><strong>Preferred:</strong> Background in ADAS or autonomous driving system development and evaluation.</li></ul><p>Reference No.: 06940-0013294853</p><p> </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/c2Fvcmkua29kYWthLjUwMzc4LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.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">
<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><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><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>About the Role</strong></p><p>Join 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.</p><p><strong>Key Responsibilities</strong></p><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><p><strong>Qualifications</strong></p><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><p><strong>Preferred Experience</strong></p><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><p><strong>Saraly</strong>: Hourly Rate: ¥5100-¥6120</p><p>Reference Number: 06940-0013294835</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/c2Fvcmkua29kYWthLjg3ODM1LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.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>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>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>🗾 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">
<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">
