Summary
Andy Xu is a quantitative technologist with a decade of software engineering experience applying research-grade technology to trading and fintech. Currently at Radix Trading, he builds research infrastructure and analytic tools informed by prior stints at Citadel, Two Sigma, Stripe, and Facebook where he focused on clearing/settlement, SDLC automation, payouts, and privacy discovery. He founded salad.nu (now paper.nu), a consumer-facing project that grew to 10,000+ monthly users, demonstrating product instincts alongside low-latency systems skills. A Northwestern CS graduate with a 4.0, Andy blends rigorous academic foundations with hands-on engineering across both startup and institutional environments. Not obvious from titles: he moves fluidly between shipping production services and enabling quantitative research workflows, making him effective at bridging researchers and production engineers.
10 years of coding experience
1 year of employment as a software developer
Bachelor of Science Computer Science, Bachelor of Science Computer Science at Northwestern University