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Career profile

Charlie Marsh

Building Ruff, uv, ty, and other high-performance Python tools at OpenAI.

United States

Career path.

  1. OpenAI

    Member of Technical Staff

    May 2026 - Present
  2. Astral

    Founder & CEO

    Oct 2022 - May 2026
  3. Spring Discovery

    Staff Software Engineer

    Feb 2018 - Aug 2022
  4. Cedar Inc.

    Engineering Lead

    Sep 2017 - Feb 2018
  5. Khan Academy

    Senior Engineer

    Nov 2016 - Aug 2017
  6. Khan Academy

    Software Engineer

    Sep 2015 - Nov 2016
  7. Khan Academy

    Software Engineer (Intern)

    May 2014 - Aug 2014
  8. Microsoft

    Software Development Engineer (Intern)

    Jun 2013 - Aug 2013
  9. Facebook

    Market Development

    Jun 2012 - Aug 2012
  10. Toptal

    Head of Community and Content

    Jan 2011 - Jan 2013