Software Engineer - London

Jane Street

Sep 1, 2023

Applications are closed

Job
Full-time
Entry Level
Software Engineering
London

Requirements

We don’t expect you to have a background in functional programming, finance, or any other specific field—we’re looking for smart programmers who enjoy solving interesting problems. We’re more interested in how you think and learn than what you currently know. You should be:
A top-notch programmer with a love for technology
Intellectually curious, collaborative, and eager to learn
Humble and unafraid to ask questions and admit mistakes
Fluent in English

Responsibilities

You’ll find Software Engineers in all parts of Jane Street, solving real problems in critical areas ranging from trading desks to our accounting team, as well as building foundational infrastructure, whether that means implementing network monitoring or risk models. We are big believers in functional programming, and use OCaml as our primary development language (we have the largest team of OCaml developers in any industrial setting).
Beyond our own environment, we also recognise the value of open source software, leveraging it in our daily work and releasing hundreds of thousands of lines of our own code as open source. We’re also always looking for ways to expand open source projects, and provide ongoing support to things like Mercurial, the OCaml compiler, and the OPAM package manager. That said, we’re interested in talented engineers with experience in any language—most of us came in with little to no practical experience in OCaml before we joined.

FAQs

What are the main responsibilities of a Software Engineer in London?

As a Software Engineer in London, your main responsibility will be to design and build the systems and tools that run the firm.

What qualifications or skills are required for this role in London?

To be successful in this role, you will need experience in software engineering, programming languages, and a strong understanding of system design and architecture.

Is experience in the finance industry necessary for this position in London?

While experience in the finance industry is preferred, it is not required. We welcome candidates from diverse backgrounds who are passionate about software engineering.

What is the work environment like for Software Engineers in London?

Software Engineers in London work in a collaborative environment where they have the opportunity to work on challenging projects and collaborate with talented colleagues.

Are there opportunities for growth and advancement in this role in London?

Yes, there are opportunities for growth and advancement for Software Engineers in London. We encourage professional development and offer training programs to support career progression.

Jane Street

Finance

Industry

1001-5000

Employees

2000

Founded Year

Mission & Purpose

Jane Street works differently. As a liquidity provider and market maker, we trade on more than 200 trading venues across 45 countries and help form the backbone of global markets. Our approach is rooted in technology and rigorous quantitative analysis, but our success is driven by our people. Our bright, beautiful offices in the heart of New York, London, Hong Kong, and Amsterdam are open and buzzing with conversation. We come from many backgrounds and encourage travel between offices to share perspectives. Some of our best ideas come from bumping into a visiting colleague at the office coffee bar. Markets move fast. Staying competitive as we’ve grown has required constant invention—of new trading strategies, technology, and processes. We’ve found this is easier when you hire humble, kind people. They tend to help each other, and prioritize teamwork over titles. We invest heavily in teaching and training. There’s a library and a classroom in every office, because deepening your understanding of something is considered real work. Guest lectures, classes, and conferences round out the intellectual exchanges that happen every day. People grow into long careers at Jane Street because there are always new and interesting problems to solve, systems to build, and theories to test. More than twenty years after our founding, it still feels like we’re just getting started.