Senior Software Engineer Data Ai Solutions Full Remote Jobs in Tokyo, Tōkyō

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Software Engineer

Tokyo,
remote
Contract
16.9M - 16.9M JPY / Yearly
Company ProfileA venture-backed AI technology company focused on developing verifiable and explainable AI solutions for scientific and engineering applications. The company combines advanced machine learning, formal reasoning, and domain expertise to accelerate innovation in complex technical fields, including engineering design, semiconductors, and scientific research. The Role<ul><li>Develop and maintain backend applications using Python/FastAPI and frontend applications using React/Next.js</li><li>Design APIs and databases, and optimize SQL performance</li><li>Contribute to system architecture and technical decision-making</li><li>Build scalable, secure, and reliable systems</li><li>Develop and enhance AI-powered features and agent workflows</li><li>Integrate and utilize LLM technologies and AI platforms</li><li>Perform unit, integration, and end-to-end testing</li><li>Participate in code reviews and quality improvement initiatives</li><li>Collaborate closely with Tech Leads and AI Engineers</li><li>Support cross-functional development teams and knowledge sharing</li></ul> Your Skills <ul><li>Cloud platforms and infrastructure</li><li>AI/LLM integration (OpenAI, Anthropic, Vertex AI, etc.)</li><li>Testing (Unit, Integration, E2E)</li><li>System design and scalable architecture</li><li>CI/CD and software engineering best practices</li><li>Troubleshooting and production support</li></ul> Key Highlights of the Role <ul><li>Work on next-generation AI products for science and engineering.</li><li>Build both full-stack applications and AI-powered features.</li><li>Influence system architecture and technical strategy.</li></ul> Salary8,125 JPY　〜 hourly Reference Number: 06940-0013502812 By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi45MjQ2Ni4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2026-10-02T03:30:41Z

Data Scientist - ML/AI

Tokyo,
remote
Permanent
10.0M - 25.0M JPY / Yearly
Company ProfileA leading technology company is expanding its AI capabilities and looking for a Senior Machine Learning Engineer to develop large-scale machine learning solutions for financial services. The Role<ul><li>Develop ML models for credit scoring, risk, and marketing</li><li>Design and deploy production ML systems</li><li>Work closely with engineers to bring models into production</li><li>Improve MLOps, monitoring, and model lifecycle</li><li>Provide technical leadership through code reviews and cross-functional collaboration</li></ul> Your Skills Must Have<ul><li>PhD (or equivalent) in ML, AI, Statistics, or related field</li><li>2+ years of hands-on production ML experience</li><li>Experience deploying ML systems into production</li><li>Business-level Japanese (JLPT N1 is required)</li><li>Ability to read technical English</li></ul>Nice to Have<ul><li>Fintech, banking, or risk modeling experience</li><li>Kubeflow, MLflow, or other MLOps tools</li><li>Publications, conference presentations, Kaggle, or OSS contributions</li></ul>Ideal Candidate<ul><li>A researcher who also builds production systems, strong technically, collaborative, and able to lead by example.</li></ul> Key Highlights of the Role <ul><li>Technical lead role with high ownership</li><li>Build production ML systems used at national scale</li><li>Work alongside a highly technical, PhD-heavy team</li></ul> Location Tokyo Salary10 - 25 million yen Reference Number: 06940-0013470139 By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<img src="https://counter.adcourier.com/TGluaC5EYW5nLjUwMTUzLjEwODk4QHJoaWpwLmFwbGl0cmFrLmNvbQ.gif">
2026-07-16T07:44:29Z

Full Stack Engineer

Tokyo,
remote
Permanent
9.0M - 12.0M JPY / Yearly
Company Profile<ul><li>Global professional services firm is looking for a Software Engineer to build and maintain software solutions supporting the business side.</li></ul> The Role<ul><li>Design, develop, test, and maintain scalable, secure software applications aligned with business goals and user needs.</li><li>Work with product, design, and QA teams, and join code reviews and architecture and technical design discussions.</li><li>Build CI/CD pipelines, automate deployments, and monitor and troubleshoot production systems.</li><li>Maintain documentation for the codebase, APIs, and processes, and support internal and external audits and compliance.</li></ul> Your Skills<ul><li>5+ years of web app development with Django and ReactJS (mandatory).</li><li>Proficiency in Python, JavaScript, TypeScript, and PostgreSQL.</li><li>Hands-on Git and Docker, plus cloud experience (Microsoft Azure preferred).</li><li>Able to handle both development and maintenance work.</li><li>Passion for using AI to drive innovation and streamline processes.</li><li>Japanese: JLPT N2, English: business level</li><li>Nice to have: CI/CD (GitHub Actions, Azure DevOps), testing frameworks (PyTest, Jest, Cypress), system design, Agile/Scrum, REST/GraphQL, security best practices, monitoring (Prometheus, Azure Monitor), mentoring or leading small projects.</li></ul> Key Highlights of the Role<ul><li>Work on software for a leading global professional service company</li><li>Closely work with AI and build LLM products from day 1</li><li>Take part in architectural decisions, with room to mentor juniors and lead small projects.</li><li>Possible to work remotely with very rare office days</li></ul> Location Tokyo Salary9 - 12 million yen Reference Number: 06940-0013521216 By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (<a href="https://www.roberthalf.com/jp/en/privacy">https://www.roberthalf.com/jp/en/privacy</a>). Please ensure that your application documents do not include sensitive personal data such as race, beliefs, medical history, criminal record, or other information irrelevant to hiring process such as spouse or dependents. All information must be accurate and truthful, and any included hyperlinks must be safe and secure.<img src="https://counter.adcourier.com/TmFuY3kuWXVhbi45NTkwOS4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">
2026-10-07T06:46:39Z

3 results for Senior Software Engineer Data Ai Solutions Full Remote in Tokyo, Tōkyō