Jane Street is a global market maker and liquidity provider, leveraging advanced technology and quantitative analysis to trade on over 200 venues in 45 countries. The company fosters a collaborative culture, emphasizing teamwork, continuous learning, and intellectual exchange, with a focus on hiring humble, kind individuals who prioritize cooperation. With a blend of machine learning, distributed systems, and statistics, Jane Street's technology teams build robust systems that handle billions in transactions daily, making it a leader in efficient and transparent financial market operations.