Linux Engineer

About the Position

We are seeking Linux Engineers to join the team responsible for maintaining the critical infrastructure that supports Jane Street’s technology. Our group consists of Systems Engineers, Administrators, and Programmers dedicated to maintaining and enhancing the platform powering Jane Street's production trading systems. Our combination of in-house and open source software allows for investigation and innovation at every level.

Daily tasks may include debugging kernel performance, developing management tools, or resolving production issues in real time. Tackling complex systems problems is our specialty.

Key ongoing projects focus on deployment automation, scalable configuration management, and comprehensive monitoring. We automate as much as possible to reduce errors and workload, while also enjoying the process.

Working in this group offers opportunities to collaborate across the company, including trading, technology, and operations teams. We use feedback and custom monitoring tools to quickly resolve production issues, conduct root-cause analyses, and implement robust long-term fixes.

We do not expect deep prior experience; we welcome smart problem solvers and provide hands-on training alongside experienced team members to help you contribute to infrastructure improvements daily.

About You

• Bachelor's degree in Computer Science, Software Engineering, or a related technical field, or equivalent experience
• Experience managing or troubleshooting Linux systems in home, work, or academic settings
• Exposure to Linux environments through software development, IT operations (Helpdesk, Technical Support, DevOps, etc.), or similar roles
• Interest in systems programming and administration with a desire to develop these skills
• Willingness to learn OCaml, our primary programming language (no prior OCaml experience required)
• Ability to analyze and deconstruct technical problems
• Knowledge of operating system fundamentals, especially Linux
• Confidence with the Unix command line and basic shell scripting
• Basic understanding of network protocols and troubleshooting
• Familiarity with fundamental programming concepts
• Practical experience with modern Linux systems and systems programming concepts (e.g., C, sockets, virtual memory, process lifecycle)
• Intermediate to advanced knowledge of troubleshooting tools and techniques (e.g., gdb, perf, DTrace, SystemTap) is a plus
• Intermediate to advanced programming experience in any language is a plus
• Intending to start full-time employment in 2025
• Fluency in English is required

If you are a recruiting agency interested in partnering with us, please contact agency-partnerships@janestreet.com.