About
Trading. Research. Tech. Jane Street is a global liquidity provider and trading firm that uses sophisticated quantitative analysis and a deep understanding of market mechanics to help keep prices consistent and reliable.
At Jane Street, work blends human intuition — earned through more than twenty years of experience — with cutting-edge research. The company's style is both rigorous and pragmatic. Depending on the problem, the firm might draw on large-scale machine learning, domain expertise, or pen-and-paper mathematics. It is a firm of puzzle solvers on and off the clock.
At the heart of global markets.
Jane Street's global presence allows it to trade continuously on more than 200 electronic exchanges and other venues, making the firm one of the world’s largest market makers.
Jane Street became known for its expertise in domestic and international ETFs, but its trading has grown significantly since their early days. Today, the firm is a major player in the Equities, Bonds, and Options markets, among others.
Whether it’s in New York, London, Hong Kong, Singapore, or Amsterdam, standing on a Jane Street trading floor feels like being at the center of something much bigger — a lively, cross-continental exchange of ideas.
Drawing on machine learning to advance quantitative research.
Researchers at Jane Street build models, strategies, and systems that price and trade a variety of financial instruments. Employees analyse large datasets using a variety of machine learning techniques, exploring the latest theory and pushing beyond existing performance limits.
Technical to the core.
Technology is central to everything the company does. Twenty years of using the most advanced tools available and applying them to complex problems at market scale has given Jane Street a reputation of technical excellence.
The firm builds almost all of its software in-house, including critical trading and risk management systems, using a statically typed functional programming language called OCaml. Although Jane Street prizes automation, human judgment and insight are critical to how the firm trades. The company has invested heavily in sourcing and building tools that provide traders with real-time visibility and insight into their trading activity to help guide their decision
Values
Ethics and Honesty
Jane Street takes pride in ensuring that its trading practices do not impose hidden costs or risks on counterparties or the market. At the firm, no employee is ever asked to defend a position or state an opinion they don’t genuinely believe in. Both internal and external interactions are conducted with honesty and openness, which is a fundamental principle at Jane Street.
Responsible Risk Management
Jane Street specialises in managing risk with a careful, deliberate approach. The firm studies how trading risks may be larger or more interconnected than they initially appear, which enables it to act boldly when appropriate. Their approach to risk has both ethical and practical dimensions—Jane Street does not believe in taking excessive risks that would shift the burden of failure onto others. When systems fail, the firm has a strong culture of conducting postmortems, believing that improving processes is far more productive than assigning blame.
Intellectual Humility
At Jane Street, intellectual humility is key to challenging assumptions and updating views when presented with new information. The firm encourages skepticism and the critical questioning of “why” things are done a certain way. Openly discussing mistakes is embraced, as it is seen as the best way to learn and improve.
Less hierarchy, more collaboration
Jane Street values collaboration over hierarchy. The firm minimises bureaucratic barriers and places little importance on seniority, fostering an environment where colleagues can easily connect across departments. Jane Street encourages a culture where everyone works together as partners, driving toward shared goals.
What sets us apart
Academic, Research-Oriented Culture
Jane Street is known for its deeply academic and research-focused culture. Unlike many other trading firms that emphasise fast-paced decision-making, Jane Street prioritises thorough research, data analysis, and intellectual rigor. Their approach encourages constant questioning and learning, which is deeply embedded in their problem-solving process. This makes the firm a great fit for individuals with a love for analysis, curiosity, and intellectual challenge.
ETF Market‑Making Core with Broad Diversification
Still the dominant liquidity provider in global ETFs, but desks now span equities, options, fixed‑income, energy and crypto, so juniors get both deep ETF expertise and cross‑asset rotations.
Freedom‑Friendly Contracts
The firm famously skips non‑compete clauses; employees can walk any time, although most stay because the environment rewards openness, OCaml‑driven innovation and ready access to senior mentors.
Elite Compensation & Exceptionally Low Turnover
First‑year packages near USD 400 k plus transparent profit shares, ~50‑hour workweeks and a genuinely collaborative floor keep voluntary exits rare and institutional knowledge deep.
