Brett Harrison is the President of FTX US, a US-regulated cryptocurrency exchange. Prior to joining FTX US, Brett was Head of Semi-Systematic Technology at Citadel Securities, where he managed technology for the firm’s Options, ETF, OTC, and ADR trading globally. He began and spent the majority of his career at Jane Street, where he led the firm’s algorithmic trading system development. He also previously worked at Headlands Technologies as a senior software developer. Brett received his M.S. and B.A. in Computer Science from Harvard.