Jane Street is hiring a Linux Engineer in IT and Systems Engineering — London, England, United Kingdom. The overview below is synthesized from the employer posting on janestreet.com: factual requirements and scope are preserved, but prose is rewritten with editorial context. Verify details and apply via the employer link.
About the Position
Company context from the listing:
Linux Engineers work with the critical infrastructure underlying the rest of the firm’s technology. Members of this group are hard-working Systems Engineers, Administrators and Programmers, tasked with maintaining and improving the platform that powers Jane Street's production trading systems.
Deployment automation, scalable configuration management, and obsessive monitoring are the focus of some of our ongoing projects. We automate as much of our work as we can, but not because we are lazy.
Working in our group provides opportunities for involvement with almost every other facet of the company. We work directly with colleagues in Trading, Technology, and Operations to build and maintain systems with a firm-wide scope.
About You
Company context from the listing:
The listing frames the Linux Engineer at Jane Street as a hands-on product role. Candidates should have a willingness to learn OCaml, our language of choice, and meet the following requirements:
- 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
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
Build a standout application
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Web3 hiring values reliability: on-time follow-through, clear writing, and a track record of improving runbooks and tooling. Treat the application as a work sample. For interviews, be ready to walk through how you prioritize across time zones, handle a difficult user, and decide when to escalate versus resolve directly. Show how you document decisions so the next teammate benefits.
In a distributed Web3 org, trust builds through written clarity. Use the cover note to demonstrate it. Add links to public work, keep formatting scannable, and close with a clear ask. Hiring managers skim — make impact obvious in the first half-page.
Career growth in Web3 rewards continuous learning. Follow protocol changelogs, practice with testnets, and contribute to open issues. Small, consistent contributions compound into credibility more than one-off credentials.