Back to Jobs

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, 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 [email protected].
Posted 2025-07-15

Recommended Jobs

Risk Lawyer - International Law Firm in London Area

London

Job description A rare opportunity has arisen for a confident and commercially minded Risk Lawyer to join the London office of a leading international law firm. With a strong risk culture and forw…

View Details
Posted 2025-07-06

C# ASP.NET Developer - Fintech

Quant Capital
London

C# ASP.NET Developer – Fintech Quant Capital is urgently looking for a .NET Developer with both C# and ASP.NET skillsto join our high profile client. Our client is a leading software provid…

View Details
Posted 2025-07-09

Real Estate Asset Manager - Residential

Archer Recruitment
London

In this pivotal role, you'll be responsible for overseeing a diverse portfolio of Houses in Multiple Occupation (HMO) properties across Greater London, ensuring maximum asset value and exceptional pr…

View Details
Posted 2025-06-26

Design Producer (Human Interface)

Salt Search Ltd.
London

DESIGN PRODUCER (UX, Product Design, Human Interface) ~£285.00 pd ~ Inside IR35 ~12 months ~3 days on-site ~ London, Z1 Summary My client’s design team is seeking an experienced Desi…

View Details
Posted 2025-06-11

Senior Settlements Operations Analyst

Saxton Leigh
London

An ambitious, FCA-regulated broker-dealer in the City is seeking a highly skilled and detail-oriented Senior Settlements Operations Analyst to join the team.  You will be responsible for overseeing…

View Details
Posted 2025-06-12

Business Development Manager

Lipton Media
London

Business Development Manager - Events £50,000 - £55,000 Uncapped Commission Excellent Benefits Hybrid Global, award winning events business seeks a talented Business Development Manager to join the…

View Details
Posted 2025-07-10

Workplace Coordinator

Dun & Bradstreet
London

Why We Work at Dun & Bradstreet Dun & Bradstreet combines global data and local expertise to help clients make smarter decisions. With 6,000+ people in 31 countries, we are a team of diverse think…

View Details
Posted 2025-07-02

Commercial Property Underwriter

Harrison Holgate
London

Commercial Underwriter – SME & Mid-Market (Hybrid – 3 days in office) Salary: Up to £55,000 + benefits We’re working with a growing MGA in London seeking an experienced Commercial Underwriter to…

View Details
Posted 2025-07-01

Technical Project Manager

IPG Mediabrands
London

About Us KINESSO is the technology-driven performance marketing agency that sits at the very heart of IPG Mediabrands, providing actionable growth for both our agency partners and clients. We turn…

View Details
Posted 2025-06-03

Regulatory Competition Economist

Google
London

Minimum qualifications: ~ Master's degree in Economics, a related field (e.g., Statistics, Data Science, Public Policy, Business, Finance), or equivalent practical experience. ~4 years of experien…

View Details
Posted 2025-06-30