Jane Street
Software Engineer
New York, New York, United States · Full-time · Posted Jul 6, 2026
About the job
Designs and builds systems and tools used across the firm, including trading, accounting, infrastructure, and research applications.
What you'll do
- Build systems and tools for teams across the firm.
- Develop foundational infrastructure, such as network monitoring and risk models.
- Use software to support research and trading, including data analysis, visualization, and machine learning.
Tools
OCaml, Python, Mercurial, OPAM
AI focus
The posting mentions machine learning as an application area for Python in research and trading; no specific AI development duties are stated.
Model-written summary · the original posting is authoritative