Career Opportunities

We are looking for exceptional talent to join our small but ambitious lab in Tokyo. Browse the open positions below and apply for the role that fits you best.

How to Apply

1. 1
   Find a role

   Review the open positions and identify the one that fits your background.

2. 2
   Email careers@sakana.ai

   Send a brief introduction and indicate which role you are applying for.

3. 3
   Submit the form

   Complete the Google Form with your CV and cover letter (English).

Open Positions

• 
  Research

  Member of Technical Staff (RSI Lab)

  The Sakana AI Recursive Self-Improvement (RSI) Lab is a dedicated research group within Sakana AI, tasked with redesigning the AI development process itself with AI.

  • Tokyo
  • Full-time / Visiting Researcher
  • English
• 
  Research

  Software Engineer (Research and Development)

  Build the full-stack infrastructure that turns ML research into deployed products — data pipelines, benchmarking, and user-facing tools.

  • Tokyo
  • Full-time
  • English
• 
  Applied Team

  Solution Engineer

  Deploy advanced AI into customer environments — from infrastructure design through monitoring and continuous improvement.

  • Tokyo
  • Full-time
  • Japanese (Business)
• 
  Applied Team

  Forward Deployed Engineer

  Embed with customers to translate ambiguous business problems into impactful AI solutions using LLMs and agents.

  • Tokyo
  • Full-time
  • Japanese (Business)
• 
  Applied Team

  Applied Research Engineer (Enterprise / Defense)

  Apply cutting-edge generative AI and AI agent technology to solve Japan's most important challenges as part of the Applied Team (Enterprise or Defense).

  • Tokyo
  • Full-time / Contract / Intern
  • Japanese (Business) & English
• 
  Product

  Applied Research Engineer (Product)

  Join the team behind Sakana Chat 🐟, Sakana Marlin 🐬, and Sakana Fugu 🐡
  Spearhead the applied research, development, and productization of advanced AI technologies, including autonomous agents and multi-agent LLM systems, to solve complex customer challenges and turn cutting-edge research into products.

  • Tokyo
  • Full-time / Contract / Intern
  • Japanese (Conversational) & English
• 
  Applied Team

  Software Engineer (Platform)

  Builds the secure, critical infrastructure and data platforms needed to reliably deploy and scale Sakana AI's foundation models and autonomous agents across enterprise and government environments.

  • Tokyo
  • Full-time / Contract
  • Japanese (Business, JLPT N1), English (Business)
• 
  Applied Team

  Software Engineer (Enterprise)

  Design and develop AI-powered applications across the full stack — frontend, backend, and infrastructure.

  • Tokyo
  • Full-time / Contract
  • Japanese (Business, JLPT N1) & English
• 
  Applied Team

  Software Engineer (Defense)

  Develops full-stack, AI-integrated software solutions tailored for Japan's defense and intelligence sectors, requiring strict security clearance and adaptability to complex or restricted environments.

  • Tokyo
  • Full-time / Contract
  • Japanese (Business) & English
• 
  Applied Team

  Technical Program Manager

  Lead end-to-end delivery of large-scale enterprise AI implementations, with focus on financial institutions.

  • Tokyo (Hybrid)
  • Full-time
  • Japanese (Business)
• 
  Applied Team

  Public Sector Specialist

  Drive Sakana AI's public sector adoption by crafting strategic proposals and documentation for Japanese government and defense contracts.

  • Tokyo (Hybrid)
  • Full-time
  • Japanese (Business)
• 
  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)
• 
  Corporate

  Cybersecurity Engineer

  Design and operate security controls for AI-powered enterprise applications, from risk assessment to incident response.

  • Tokyo
  • Full-time
  • Japanese (Business)
• 
  Product

  Business Role (Product Manager)

  Join the team behind Sakana Chat 🐟, Sakana Marlin 🐬, and Sakana Fugu 🐡
  Define product vision, roadmap, and go-to-market strategy for AI products that redefine what is possible.

  • Tokyo
  • Full-time
  • Japanese (Conversational) & English (Business)
• 
  Applied Team

  Business Role (Project Manager)

  Join the team behind Sakana Chat, Sakana Marlin, and Sakana Fugu. Solve business challenges with AI alongside members in our product research teams.

  • Tokyo
  • Full-time
  • Japanese (Business, JLPT N1)
• 
  Applied Team

  Business Role (Project Manager), Defense and Intelligence

  Drive AI adoption in Japan's defense and intelligence sectors through partnerships with government agencies and related companies.

  • Tokyo
  • Full-time
  • Japanese (Business)
• 
  Applied Team

  Business Role (Project Manager), Manufacturing

  Lead AI transformation projects with Japan's manufacturing leaders, tackling production, supply chain, and quality challenges.

  • Tokyo
  • Full-time
  • Japanese (Business, JLPT N1)
• 
  Corporate

  Business Role (Corporate Development)

  Lead capital strategy, M&A, partnerships, and IPO preparation to scale Sakana AI's business globally.

  • Tokyo
  • Full-time
  • Japanese (Business), English
• 
  Corporate

  Office Assistant

  Support the smooth operations of our fast-growing Tokyo office — facilities, vendors, and employee experience.

  • Tokyo
  • Full-time
  • Japanese (Business)
• 
  Corporate

  Recruiter

  Source and engage exceptional talent across engineering, research, and business roles through direct outreach.

  • Tokyo
  • Full-time
  • Japanese (Business)
• 
  Corporate

  Communications Manager

  Translate technical research and product breakthroughs into compelling stories for global media and stakeholders.

  • Tokyo
  • Full-time
  • Japanese (Business)
• 
  Corporate

  Accountant

  Accountant in the Corporate Department.

  • Tokyo
  • Full-time
  • Japanese (Business)
• 
  Research

  Member of Technical Staff

  • Tokyo
  • Internship / Visiting Researcher
  • English