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People / Jack O'Connor
JO
Career profile

Jack O'Connor

lots of Rust and cryptography, lead author of BLAKE3, personal site jacko.io

Bellevue, Washington, United States

Career path.

  1. OpenAI

    Member of Technical Staff

    Apr 2026 - Present
  2. Astral

    Software Engineer

    May 2025 - Apr 2026
  3. SpaceX

    Sr. Product Security Engineer

    May 2022 - May 2024
  4. NYU Tandon School of Engineering

    Adjunct Professor

    Sep 2021 - Dec 2021
  5. Zoom Video Communications

    Sr. Security Engineer

    May 2020 - Jul 2021
  6. Self-employed

    no title

    Jan 2018 - May 2020
  7. Keybase

    Software Engineer

    Jan 2015 - Jan 2018
  8. Facebook

    Software Engineer

    Jan 2011 - Jan 2014
  9. Microsoft

    Software Engineer

    Jan 2009 - Jan 2011