About the role
Software Engineer (Product) Blog --> Career Opportunities --> ← All open positions Product Software Engineer (Product) Join
the team behind Sakana Chat 🐟, Sakana Marlin 🐬, and Sakana Fugu 🐡 Drive the full-stack development of Sakana AI's in-house products, transforming cutting-edge research into scalable, user-facing applications through rapid prototyping and AI integration. Tokyo Full-time / Contract Japanese (Conversational) & English (Business) Software Engineer (Product) At Sakana AI, we are conducting world-leading research and development with our unique generative AI technology inspired by nature. The Product team’s mission is to bring these cutting-edge research results to the world as AI products. We are looking for a Software Engineer to take on full-stack development across multiple in-house AI products, from UI/UX to backend and infrastructure. Candidates will be expected to be physically based in Tokyo, but we will provide assistance with the Visa application process if needed. Main Roles and
Responsibilities Full-stack design and implementation of products: covering front-end (React/Next.js, etc.), backend APIs, databases, and cloud infrastructure. Building and operating the production platform: building and improving CI/CD, monitoring, scaling, security, etc. Integrating ML/AI models into products: collaborating with Applied Research Engineers to implement LLM inference, memory systems, search algorithms, etc., into the product. Fast development cycle: quickly moving from hypothesis generation to prototype, validation, and improvement, working closely with the Product Owner. Collaboration in a global team: working collaboratively within an international team using both Japanese and English.
Requirements 3+ years of practical experience as a Software Engineer in a production environment, or equivalent experience. Experience with full-stack development. Experience in designing, developing, and releasing user-facing products. Experience in autonomous development within a small team. Practical experience with Python and one or more modern web frameworks. Experience with Docker containerization and using cloud platforms. Preferred Skills (
