<p><strong>Company Profile</strong></p><p>A 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.</p><p> </p><p><strong>The Role</strong></p><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><p><strong> </strong></p><p><strong>Your Skills </strong></p><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><p><strong> </strong></p><p><strong>Key Highlights of the Role </strong></p><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><p><strong> </strong></p><p> </p><p><strong>Salary</strong></p><p>8,125 JPY　〜 hourly</p><p><strong> </strong></p><p>Reference Number: 06940-0013502812</p><p> </p><p> </p><p><em>By clicking 'apply', you are deemed to have agreed to Robert Half Japan Privacy Notice (</em><a href="https://www.roberthalf.com/jp/en/privacy"><em>https://www.roberthalf.com/jp/en/privacy</em></a><em>). 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.</em></p><img src="https://counter.adcourier.com/bWljaGFlbC5oYWdlZG9ybi45MjQ2Ni4xMDg5OEByaGlqcC5hcGxpdHJhay5jb20.gif">