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OpenAI

Software Engineer, Post-Training Research

OpenAI
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hybrid mid Full time $255K – $405K San Francisco

First indexed 30 Apr 2026

Description

We are looking for a self-starter full stack engineer who can help us rapidly prototype and develop internal products or tools used by researchers, such as visualization for our evaluation of models. You should be comfortable being truly full stack, such as building front-end from scratch and debugging backend and data pipelines. Ideal candidates are comfortable being scrappy and working independently at fast speeds.

This role is based in San Francisco, CA. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees.

In this role, you will:

  • Rapidly prototype and build tooling or visualization for researchers.
  • Collaborate with research teams to build full stack tooling.
  • Design, implement, test, and debug code across our stack.
  • Very comfortable refactoring codebases

You might thrive in this role if you:

  • Strong background in writing maintainable, testable, clean code.
  • Enjoyment of code quality, refactoring, and building robust internal codebases.
  • Have experience building products that end users interface with, or building internal tools.
  • Have experience shipping things quickly with competing priorities or deadlines.
  • Proficiency with Python
  • Are a team player, willing to do a variety of tasks that move the team forward.
This listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://jobs.ashbyhq.com/openai/f381868f-7b0a-4b22-b215-71c7f5c1b498