Jane Street Group, LLC has multiple openings for the position of Senior Software Engineer in New York, NY.
The position duties are as follows: Develop software in OCaml as part of the trading and operational infrastructure for a proprietary trading company.
- Support traders and other users of the company’s technology infrastructure on Windows, Linux, and MacOS platforms;
- Analyze and respond in real-time to problems arising from the firm’s technological infrastructure;
- Work in all parts of the software lifecycle, including gathering requirements, design, documentation, management of code review, creation of testing plans, as well as implementation and management of deployment and monitoring of the resulting software systems;
- Proactively identify, propose, and implement improvements to our systems including infrastructure optimization, reliability enhancements, and operational efficiency gains; and
- Train junior developers in all of the above.
The position requires a 3 or 4 year Bachelor’s degree or foreign equivalent in Information Technology, Computer Science, Engineering or a related quantitative field plus two (2) years of experience in any occupation where an individual gains experience developing software. Experience must include:
- One (1) year of experience developing software using OCaml, including utilizing algebraic data types and pattern matching, applying functional programming principles, implementing concurrent operations, and optimizing code based on understanding of OCaml's runtime behavior;
- One (1) year of experience managing software release cycles and software QA processes;
- One (1) year of experience using the Mercurial distributed version control system;
- One (1) year of experience using asynchronous programming, typeful software design, and monadic programming;
- One (1) year of experience rapidly diagnosing and resolving software issues in time-sensitive production environments; and
- One (1) year of experience programming on the Linux platform, including working with network programming and scripting tools.
- All technical requirements for this role may be subject to employer conducted testing to assess minimum proficiency.
Part time telecommuting may be permitted with manager approval.
Ref. SSE26
Skills Required
- Three- or four-year Bachelor's degree or foreign equivalent in Information Technology, Computer Science, Engineering, or a related quantitative field
- At least two years of experience developing software
- At least one year of experience developing software using OCaml, including algebraic data types, pattern matching, functional programming, concurrency, and runtime optimization
- At least one year of experience managing software release cycles and software quality assurance processes
- At least one year of experience using the Mercurial distributed version control system
- At least one year of experience with asynchronous programming, typeful software design, and monadic programming
- At least one year of experience rapidly diagnosing and resolving software issues in time-sensitive production environments
- At least one year of experience programming on Linux, including network programming and scripting tools
- Technical proficiency may be assessed through employer-conducted testing
Jane Street Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Jane Street and has not been reviewed or approved by Jane Street.
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Healthcare Strength — Medical, dental, and vision coverage are offered at no cost for employees and dependents, with robust onsite care including primary care, physical therapy, and mental‑health therapy. Private onsite gyms and counseling resources further reinforce the health focus.
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Parental & Family Support — Fully paid parental leave for all parents, with additional time for birth parents, is highlighted alongside expanded fertility benefits and well‑equipped nursing suites. These offerings position family support as a core element of the package.
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Wellbeing & Lifestyle Benefits — Daily free meals and snacks, private onsite gyms, recreation spaces, and rich learning programs (including tuition reimbursement and company classes) elevate day‑to‑day quality of life. Onsite medical suites and speaker series add to the lifestyle and development mix.
Jane Street Insights
What We Do
Jane Street works differently. As a liquidity provider and market maker, we trade on more than 200 trading venues across 45 countries and help form the backbone of global markets. Our approach is rooted in technology and rigorous quantitative analysis, but our success is driven by our people. Our bright, beautiful offices in the heart of New York, London, Hong Kong, and Amsterdam are open and buzzing with conversation. We come from many backgrounds and encourage travel between offices to share perspectives. Some of our best ideas come from bumping into a visiting colleague at the office coffee bar. Markets move fast. Staying competitive as we’ve grown has required constant invention—of new trading strategies, technology, and processes. We’ve found this is easier when you hire humble, kind people. They tend to help each other, and prioritize teamwork over titles. We invest heavily in teaching and training. There’s a library and a classroom in every office, because deepening your understanding of something is considered real work. Guest lectures, classes, and conferences round out the intellectual exchanges that happen every day. People grow into long careers at Jane Street because there are always new and interesting problems to solve, systems to build, and theories to test. More than twenty years after our founding, it still feels like we’re just getting started.
