Jane Street

Jane Street is a global quantitative trading firm founded in 2000. It combines deep mathematical fluency with technology to manage risks that are often overlooked and to provide liquidity to markets when it is most needed. The firm trades on more than 200 venues across 45 countries and employs over 3,000 people from five offices worldwide, with its founding office in New York.

Technical work spans quantitative trading, functional programming, machine learning, programmable hardware, quantitative finance research and risk management. Traders, researchers and engineers work in tight loops, and the firm describes itself as built on collaborative problem solving - a culture maintained since it was started by four founders, traders from Susquehanna and an IBM developer, in a small New York office.

The firm's core activity is quantitative trading and liquidity provision: operations designed to manage risks others overlook and to supply liquidity to markets when it is needed most. Its reach across 200-plus venues in 45 countries underpins both the trading and the research infrastructure behind it.