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
• 
  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
• 
  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)
• 
  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

  Accountant

  Accountant in the Corporate Department.

  • 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

  Executive Assistant

  Provide comprehensive logistical support—including schedule management, travel arrangements, and internal/external coordination—for senior executives such as CEOs and COOs.

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

  Member of Technical Staff

  • Tokyo
  • Internship / Visiting Researcher
  • English