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People / Stefan Zier
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Career profile

Stefan Zier

Member of Technical Staff @ OpenAI

San Francisco, California, United States

Career path.

  1. OpenAI

    Member of Technical Staff

    May 2026 - Present
  2. Lyft

    Staff Software Engineer

    Jan 2025 - May 2026
  3. Lyft

    Senior Software Engineer

    Jul 2021 - Jan 2025
  4. Lyft

    Software Engineer

    Apr 2018 - Jul 2021
  5. FITpin

    Software Engineer

    Jan 2014 - Sep 2016