Christopher Johnston currently serves as the Head of North America Compute at Citadel, a position held since September 2025. Prior to this role, Christopher led Platform Linux Engineering at Millennium from March 2019 to May 2025, and held key leadership positions in several organizations, including CIO and Head of Infrastructure at a Quantitative Hedgefund / FinTech Startup and Vice President at PDT Partners. Additional experience includes roles at Jump Trading, Virtu Financial, Madison Tyler, LLC, Lehman Brothers, Merrill Lynch, and Morgan Stanley, where Christopher gained extensive expertise in Linux engineering and systems architecture. Christopher's educational background includes attendance at Baldwin, though no degree was obtained.
Previous companies
This person is not in any teams
This person is not in any offices