John Hayden

Career path.

1. poolside

   Member of Engineering

   Nov 2025 - Present
2. Alchemy

   Staff Software Engineer

   Jun 2021 - Nov 2025
3. Jane Street

   Software Engineer

   Jul 2018 - Mar 2020
4. Google

   Senior Software Engineer

   Nov 2014 - Jun 2018
5. FactSet

   Software Engineer III

   Nov 2011 - Oct 2014
6. Brandyl

   Intern

   Feb 2011 - May 2011
7. ROARigami Games LLC

   Programmer and Co-Founder

   Oct 2009 - May 2012