Linux Engineer

Responsibilities

• Maintain and improve the Linux platform powering production trading systems
• Debug kernel performance and develop internal management tools
• Resolve production issues in real time across the firm
• Build deployment automation, scalable configuration management, and monitoring
• Collaborate with Trading, Technology, and Operations on firm-wide systems
• Perform root-cause analyses and integrate robust long-term fixes

Requirements

• Bachelor's degree in Computer Science or equivalent experience
• Clear communication and ability to analyze technical problems
• Deep knowledge of Linux and operating system fundamentals
• Fluency with Unix command line and shell scripting
• Practical experience with systems programming concepts such as C, sockets, virtual memory, and process life cycle
• Basic understanding of network protocols
• Strong troubleshooting skills with profiling/debugging tools like gdb, perf, DTrace, eBPF, or SystemTap
• Programming experience in any language; functional languages a plus
• Fluency in English required

About the Company

Jane Street is a quantitative trading firm where technology and infrastructure play a central role in supporting global trading operations.