Jane Street

Hybrid, Full-time. Jane Street is a quantitative trading firm that emphasizes technology and building scalable, elegant solutions. They are hiring in New York, London, Hong Kong, and Singapore for a variety of roles including Data Engineers (data management and sharing), Machine Learning Engineers (ML and strong mathematical foundations), a Machine Learning Educator (developing and growing ML educational programs), Software Engineers (primary language OCaml and functional programming), Frontend Software Engineers (typed functional programming for browser-based tools), Programmer-Who-Writes / Writer-Who-Codes, and Production Engineers (developing software and providing high-quality support for critical systems). The firm values open source contributions and experimentation in a trading environment.