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People / Siyuan Cai
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Career profile

Siyuan Cai

MTS @ xAI | ex- quant trading

Redwood City, California, United States

Career path.

  1. xAI

    Member of Technical Staff

    Feb 2026 - Present
  2. Eisler Capital

    Quantitative Strategist

    Oct 2023 - Dec 2025
  3. Xantium Group - Tudor Investment Corporation

    Quantitative Developer

    Apr 2017 - Sep 2023
  4. Jane Street

    Software Engineer

    Jul 2015 - Mar 2017
  5. Epic

    Software Developer Intern

    Jun 2014 - Sep 2014