<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>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>Selling Points</p><ul><li>Flexible full-time work with no core hours</li><li>Remote-friendly policies and tech-forward culture</li><li>Competitive compensation, annual performance bonuses, and potential equity</li><li>Paid time off, wellness support, and skill-building allowances</li><li>The chance to shape software quality in industries that truly matter-finance and energy</li></ul><p>Company Profile</p><ul><li>We're looking for a Senior SDET to lead test automation and drive software quality across large-scale platforms in the Fintech and Energy Tech industries. You'll work on services that support millions of users or power national infrastructure, from next-generation credit platforms to energy trading marketplaces.</li><li>This is a hands-on technical leadership role where you'll build robust automation systems and directly influence engineering practices and release velocity.</li></ul><p>The Role</p><ul><li>Design and build automation frameworks for APIs, microservices, and batch job workflows</li><li>Lead automated testing across web, backend, and infrastructure layers</li><li>Drive CI/CD integration of test suites using GitLab CI, Jenkins, and Gradle</li><li>Write test cases using Java frameworks (TestNG, JUnit, AssertJ)</li><li>Generate detailed test reports using Allure; use SLF4J and logging tools for debugging</li><li>Contribute to risk validation systems, secure data pipelines, and performance assurance</li><li>Foster QA culture and introduce risk-based testing, quality metrics, and tooling improvements</li></ul><p>Your Skills</p><ul><li>5+ years of experience in QA automation or software testing</li><li>Strong coding skills in Java, and knowledge of test frameworks like JUnit, TestNG</li><li>Experience testing APIs, backend systems, or microservices (REST/gRPC)</li><li>Familiar with mocking libraries (e.g. Mockito) and API testing tools (REST Assured, Postman)</li><li>Experience integrating automation into CI/CD pipelines</li><li>Excellent communicator who collaborates well with developers and product teams</li></ul><p>Salary</p><ul><li>10,000,000 yen - 12,000,000 yen</li></ul><p>Location</p><ul><li>Tokyo</li></ul><p>Reference number : 06940-0013242907</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/c3VlLnRpbmcuNjMyNjguMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.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><strong>Company Profile</strong></p><ul><li>Our client is looking for a Cloud infrastructure and platform engineer for thier cloud system.</li></ul><p><strong>The Role</strong></p><ul><li>This role will be responsible for the engineering of Cloud Infrastructure Platforms to provide robust, reliable and cost-efficient Platform so that we can deliver the best experience for our growing customers base.</li><li>Main Responsibilities Architect and build a robust, scalable and stable infrastructure</li><li>Architect and build Infrastructure that is easily maintainable during patching and upgrades</li><li>Architect and build Infrastructure with AWS regional level failure tolerance</li><li>Work together with our Security Engineers to provision a secure Infrastructure Automations for AWS Deployments to ensure fast delivery of Cloud Services to our developers</li><li>Provide through Automations means for developers to easily deploy resources on AWS.</li><li>Design and Build Reliable Infrastructure: Create systems that are strong, stable, and can grow as needed.</li><li>Easy Maintenance: Make sure the infrastructure is simple to update and patch without causing problems.</li><li>High Availability: Build systems that can keep running even if there are failures in an entire AWS region.</li><li>Automation for Fast Delivery: Automate AWS deployments so developers can quickly access the cloud services they need.</li><li>Developer-Friendly Tools: Provide automated solutions so developers can easily set up and manage AWS resources.</li></ul><p><strong>Your Skills </strong></p><ul><li>More than 5 years of technical experience in Cloud based Infrastructure Platform</li><li>Ability to demonstrate high degree of ownership in a Production environment</li><li>Good understanding of Cloud security best practices and payment industry compliance standards</li><li>Expertise in designing, building and troubleshooting large-scale streaming and distributed systems using Kafka.</li><li>Expertise in building Robust platforms based on NoSQL/KVS datastores like DynamoDB, Opensearch/ Elasticsearch and Redis.</li><li>Experience in Cloud infrastructure and platform systems availability, performance and cost management Extensive technical hands-on experience of Computing, Storage and Analytical Services on Cloud(AWS)</li><li>Experience with IAC tools in AWS such as Terraform, CloudFormation, CDK Experience with Cloud Services Monitoring, Detection and Response Experience in Cloud Services Performance Tuning, cost controls and management Experience in Cloud Infrastructure Service patching and upgrades PayPay DevOps emphasize automation.</li><li>Demonstrated skill with the following are required: Python ShellScripting Go/ Rust (optional) Have excellent oral, written, verbal and interpersonal communication skills. Preferred Qualifications Bachelor's degree and above in a technology related field Experience with other cloud service providers (e.g GCP, Azure)</li><li>Experience with Kubernetes (CKA, CKAD or CKS)</li><li>Experience with Event-Driven Architecture (Kafka preferred)</li><li>Experience using and contributing to Open Source tools</li><li>Experience in managing IT compliance and security risk Published papers / blogs / articles - Relevant and verifiable certifications</li><li>Bilingual in English and Japanese is nice to have, but not required. Proficiency in either language is fine. </li></ul><p>Tech Stack</p><ul><li>AWS: VPC, EC2, ECS, EKS, Lambda, Cloudfront, MWAA, RDS, ElastiCache, DynamoDB, Opensearch, S3, CloudWatch, Cognito, SQS, KMS, Secret Manager, KMS, MSK, CodeCommit, CodeBuild, CodeDeploy, CodePipeline, CloudFormation and other services Terraform, Github Actions, Prometheus, Grafana, Dynatrace, Atlantis, ArgoCD, OpenTelemetry</li></ul><p><strong>Location </strong></p><p>Tokyo</p><p><strong>Salary</strong></p><p>8 - 12 million yen</p><p> </p><p>Reference Number: 06940-0013244587</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/V2F0dW55dS5TaXJpcGFpcm9qLjgzNTM1LjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
<p><strong>About the Opportunity</strong></p><p>Are you ready to drive innovation in a rapidly scaling tech company with a global vision? We are seeking a mid to senior-level software engineer to join a dynamic team at the heart of Tokyo's thriving product development scene. This is your chance to architect and deliver cutting-edge solutions that power real-world impact, all within a collaborative, international environment.</p><p><strong>What's In It For You</strong></p><ul><li><strong>Shape the Future:</strong> Lead the creation of new digital products from the ground up, influencing technology choices and product direction from day one.</li><li><strong>Global Collaboration:</strong> Work alongside talented professionals from diverse backgrounds, with English as the primary language of communication.</li><li><strong>Growth & Ownership:</strong> Be empowered to take initiative, drive technical decisions, and help scale a high-performing engineering team.</li><li><strong>Competitive Rewards:</strong> Attractive annual compensation (8.5M-12M JPY), regular salary reviews, and stock options to share in the company's success.</li><li><strong>Flexible Work:</strong> Hybrid work style with core hours and the freedom to manage your own schedule. Occasional in-person sessions foster team spirit and innovation.</li></ul><p><strong>Your Role</strong></p><ul><li>Spearhead the end-to-end development of new applications, from technology selection and domain modeling to system architecture and deployment.</li><li>Collaborate with cross-functional teams-product managers, designers, and engineers-to deliver high-impact solutions.</li><li>Mentor and guide team members, instilling best practices and a culture of technical excellence.</li><li>Contribute to the evolution of a global engineering organization, helping shape processes and standards as the company scales.</li></ul><p><strong><br /> What We're Looking For</strong></p><p><strong>Must-Have Skills & Experience:</strong></p><ul><li>5+ years building and deploying web applications on cloud platforms (GCP, AWS, or Azure).</li><li>Proven leadership in shipping projects with teams of 5+ engineers.</li><li>Deep expertise in system design, architecture, and delivering robust, scalable solutions.</li><li>Experience working with multiple programming languages and frameworks.</li><li>Ability to communicate complex technical ideas fluently in English.</li></ul><p><strong>Preferred Qualifications:</strong></p><ul><li>Hands-on experience with Docker-native infrastructure and CI/CD pipelines.</li><li>Solid background in backend development using statically typed languages (e.g., Rust, TypeScript, Node.js).</li><li>Familiarity with microservices, asynchronous processing, and secure web application design.</li><li>Exposure to modern frontend frameworks (React.js) and domain-driven design.</li><li>Track record of technical leadership in fast-paced, ambiguous environments.</li></ul><p><strong>Who Thrives Here</strong></p><ul><li>Visionaries who are passionate about transforming industries through technology.</li><li>Problem-solvers who embrace challenges and take ownership of outcomes.</li><li>Team players who foster open, respectful communication and thrive in multicultural settings.</li><li>Lifelong learners eager to explore new tools, languages, and design patterns.</li></ul><p><strong>Tech Stack Snapshot</strong></p><ul><li><strong>Frontend:</strong> TypeScript, React, Next.js</li><li><strong>Backend:</strong> Rust (axum), TypeScript, Node.js (Express, Fastify, NestJS)</li><li><strong>Infrastructure:</strong> Docker, Kubernetes, Google Cloud, Cloudflare, Istio</li><li><strong>DevOps:</strong> GitHub, ArgoCD, Terraform, Datadog, Sentry</li><li><strong>Data:</strong> PostgreSQL, BigQuery, AlloyDB</li><li><strong>APIs:</strong> GraphQL, REST, gRPC</li><li><strong>Collaboration:</strong> Slack, Discord, JIRA, Miro</li></ul><p><strong>Salaary</strong></p><p>8 - 10 million Yen</p><p><strong>Location</strong></p><p>Tokyo</p><p>Reference No.: 06940-0013244592 </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/S2hhbmcuTGUuOTI3NzkuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.gif">
<p><strong>Company Profile</strong></p><ul><li>Our client is a dynamic and innovative e-commerce platform empowering businesses of all sizes to establish and manage their online stores with ease..</li></ul><p><strong>The Role</strong></p><ul><li>Engineer/ Tech Lead</li></ul><p><strong>Your Skills </strong></p><ul><li>At least 1 year of working experience in in-house services</li><li>4+ years of working experience in UI/UX design for web services</li><li>Working level skills in Figma (or Sketch, Adobe XD)</li><li>Experience working with engineers</li><li>Applicants must be able to submit a portfolio (any format is acceptable).</li></ul><p><strong>Location </strong></p><p>Tokyo</p><p><strong>Salary</strong></p><p>9 - 12 million yen </p><p> </p><p>Reference Number: 06940-0013148268</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/aXNhYWMuY2hlbmcuODczNjEuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.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>What Sets This Opportunity Apart</strong><br /><br /><span style="text-decoration: underline;">Mission with Real Impact</span>: Help transform financial services by making cashless payments more accessible and intuitive for everyone in Japan. Your work will drive a fundamental shift in how people interact with money.<br /><br /><span style="text-decoration: underline;">Freedom to Innovate</span>: Join a culture that rewards initiative, creative problem-solving, and the courage to challenge the status quo. Here, you'll help rebuild core systems from the ground up, not just tweak existing features.<br /><br /><span style="text-decoration: underline;">Career Growth & Ownership</span>: Take on enterprise-scale challenges, lead architectural decisions, and see your ideas move from concept to reality. You'll have a direct hand in expanding the company's service portfolio as it aims to become Japan's go-to fintech platform.<br /><br /><span style="text-decoration: underline;">Flexible Workstyle</span>: Enjoy true flexibility-work fully remotely from anywhere in Japan, with occasional team gatherings in Tokyo. There's no fixed office attendance, and you set your own hours for optimal work-life balance.<br /><br /><span style="text-decoration: underline;">Collaborative & Diverse Team</span>: Work alongside passionate engineers, product managers, and designers from around the world. Communication is open, and your input will always be valued.<br /><br /><strong>What You'll Do</strong><br />Collaborate across disciplines to deliver new features and elevate the user experience for a rapidly growing digital payments platform.<br />Redesign and enhance frontend architecture for scalability, maintainability, and future growth.<br />Tackle complex technical challenges as you help reimagine a system at the heart of Japan's fintech transformation.<br />Mentor peers, share knowledge, and uphold engineering best practices through code reviews and feedback.<br />Troubleshoot and resolve issues to ensure a secure, robust, and seamless product.<br /><br /><strong>Who Thrives Here</strong><br />Engineers with 5+ years of hands-on experience in JavaScript and/or TypeScript, and at least 2 years working with Vue.js (React also welcome).<br />Professionals who've led frontend projects and designed scalable architectures.<br />Those who prefer building products over following orders-problem solvers who want to leave their mark on a fast-evolving industry.<br />Candidates from product-driven backgrounds (rather than consulting or outsourcing) who value autonomy and ownership.<br />Business-level English is required; Japanese is a plus but not mandatory.<br /><br /><strong>Tech Stack Highlights</strong><br />Nuxt 3 (Vue.js 3, TypeScript), REST APIs, TanStack Query, Zod, Storybook<br />CI/CD with GitHub Actions, AWS S3/CloudFront/Route53<br />Modern collaboration tools: GitHub, Slack, Zoom, Miro, JIRA<br /><br /><strong>Why Now?</strong><br />Japan's tech sector is undergoing a digital revolution, with a critical shortage of skilled IT professionals and a surge in demand for those ready to lead modernization efforts. This is a rare chance to join a company with strong financial backing and a startup mindset-where you'll help set the standard for the next era of fintech in Tokyo and beyond.</p><p>Reference Number: 06940-0013246353</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/S2hhbmcuTGUuNTI1NDEuMTA4OThAcmhpanAuYXBsaXRyYWsuY29t.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">
