Linux Engineer

Jane Street
London
About the Position

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. Our mix of in-house and open source software allows you to investigate and innovate at every level. On any given day, you could be debugging kernel performance, developing management tools, or resolving production issues in real time. Diving into tricky systems problems is our specialty.

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. We find that automation reduces our error rate and overall workload - plus, we think it's fun.

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. Using feedback from other groups and our custom monitoring tools, we strive to resolve production issues quickly, perform comprehensive root-cause analyses, and integrate long-term fixes in a clean and robust way.
About You

We are looking to hire Systems Programmers and Administrators with a deep knowledge of Unix internals and the Linux ecosystem. 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, 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 [email protected].
Posted 2025-06-07

Recommended Jobs

Sous Chef - Earls Court

ESS
London

Job Details Sous Chef - Earls Court Job Description Sous chef Monday to Friday 37.5 hours per week 18.06 per Hour Spice Up Your Next Career Move...

View Details
Posted 2025-05-29

Head of eCommerce Trading

The Growth Foundation
London

About the Company  Women’s Best was founded in 2015, and has grown to be loved by 4m+ female fans and customers across 150 countries, who use our high quality sports nutrition and apparel. We ...

View Details
Posted 2025-06-12

Head of Compliance Advisory

London

We’re Hiring: Head of Compliance Are you a senior compliance professional with a passion for consumer protection and regulatory excellence? An exciting opportunity has opened up with a leading mot...

View Details
Posted 2025-05-20

Graphic Designer

Teneo
London

The Role We are looking for a London based Graphic Designer who has a passion for design and a willingness to learn and grow within a dynamic, global team. In this role the designer will work with ...

View Details
Posted 2025-06-07

Senior Lawyer- regulation

Law Absolute Ltd
London

Senior Lawyer- regulation Government funded regulator seeks a Senior Lawyer for initial nine month contract. You will be advising internal policy teams on broad public law principles and regula...

View Details
Posted 2025-06-06

Registered Manager - £55,000

NonStop Consulting
London

Registered Manager - £55,000 NonStop Care is currently working with a new Ofsted EBD gome i n the Croydon,London area has reached out looking for a Registered Manager to run their home. This sm...

View Details
Posted 2025-05-31

US Business Tax Associate

BDO
London

We’re BDO. An accountancy and business advisory firm, providing the advice and solutions entrepreneurial organisations need to navigate today’s changing world. We’ll broaden your horizons BDO’s...

View Details
Posted 2025-06-03

Corporate Finance Contractor (Day Rate)

Collinson
London

Collinson is the global, privately-owned company dedicated to helping the world to travel with ease and confidence. The group offers a unique blend of industry and sector specialists who together pro...

View Details
Posted 2025-06-05

Deputy Manager

BaxterStorey UK
London

Title: Deputy Manager Location: Southwark, Central London Salary: Up to £34,000  ~28 Days holiday including bank holidays ~ Plus your birthday off ~3 volunteering days ~3 days grandp...

View Details
Posted 2025-05-20

Corporate Tax Assistant Manager: Join a Growing Firm with Work-Life Balance

Creative Tax Recruitment
London

Our client boasts an impressive track record of growth and is poised to keep the momentum going. The firm fosters a commercial yet non-corporate environment, providing ample autonomy to team member...

View Details
Posted 2025-06-06