Production Linux Engineer: Automate, Debug, Optimize

Jane Street; City of Westminster; On-site; GBP 70,000 - 110,000; Full time

Job summary

Jane Street in the United Kingdom seeks Linux Engineers to maintain and improve the platform supporting production trading systems. You will work with in-house and open source technologies, debugging kernel performance, building management tools, and resolving production issues in real time.

You should have a strong foundation in Linux systems, shell scripting, and C-based systems programming, plus a willingness to learn OCaml as part of the role. English fluency is required.

Qualifications

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

Responsibilities

• Maintain and improve the platform that powers production trading systems
• Contribute to deployment automation and scalable configuration management
• Develop management tools and resolve production issues in real time
• Perform root-cause analyses and implement long-term fixes in a robust way

Skills

Linux proficiency

Shell scripting

C programming

Systems programming

English fluency

Problem solving

Education

Bachelor's degree in Computer Science or related field

Tools

gdb

perf

DTrace

eBPF

SystemTap

sockets

virtual memory

Job description

Jane Street in the United Kingdom seeks Linux Engineers to maintain and improve the platform supporting production trading systems. You will work with in-house and open source technologies, debugging kernel performance, building management tools, and resolving production issues in real time.

You should have a strong foundation in Linux systems, shell scripting, and C-based systems programming, plus a willingness to learn OCaml as part of the role. English fluency is required.