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OpenAI company · OPEN ROLE

OpenAI

Applied AI Engineer, Startups

Tokyo · Engineering · AI

Company
Helps companies bring AI into real work and products through ChatGPT and its API.
Role
Builds and deploys AI systems directly together with startup customers in Tokyo.
Language
Fluent Japanese and English

What you will do

We rewrote the responsibilities and qualifications in plain language instead of copying the original posting.

Responsibilities

  • Helps innovative startup customers build API based products from idea to scale as a technical thought partner.
  • Proactively advises customers on ways to maximize business impact and speed up development.
  • Experiments and builds prototypes together with customers.
  • Turns what is learned into open source resources and spreads best practices.
  • Gathers customer feedback and delivers it to the product and research teams.
  • Builds relationships with both individual customers and the wider startup community.

What you need

  • Has worked for 5 or more years as a software engineer or a machine learning engineer.
  • Is skilled in Python and JavaScript with a solid grasp of AI and LLM practices.
  • Has built and shipped prototypes on the company's own API platform.
  • Speaks both Japanese and English fluently.

Good to have

  • Startup experience, such as being a founder or an early engineer, is a plus.
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Checked 2026-10-19

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