Windows Engineer Internship, June-September

Build and automate Windows infrastructure using C#/F#, PowerShell, OCaml, CI/CD, configuration management, monitoring, and cross-platform engineering systems.

The Windows Engineer internship is an IT and systems-engineering role focused on the infrastructure and automation behind Jane Street's Windows desktop and server estate. The team combines internally developed systems, open-source software, and third-party platforms to support engineering and production technology across the firm.

What you may build

• Windows automation and configuration-management tools.


• Improvements to CI/CD systems, cross-platform frameworks, and software-development environments.


• More scalable and efficient services, tooling, and monitoring systems.


• Editor and workflow improvements that make coding and deployment across IT faster and more reliable.

Interns are exposed to several languages used by the team: OCaml as Jane Street's primary development language, F# in parts of the Windows stack, and PowerShell for much of the IT automation work. Projects come directly from the team's mission-critical production stack.

What Jane Street looks for

You should be a strong programmer with experience in a .NET language such as C# or F#, understand operating-system fundamentals and computer architecture, and have a basic understanding of network protocols. Jane Street also explicitly lists familiarity with AI/LLMs and prompt engineering as useful. Candidates should be equally comfortable working from a command line and a graphical environment, and should communicate and collaborate well.

Details
Role information

Location London, United Kingdom

Job type Internship

Category Software Engineering

Company

New York, United States

Global quantitative trading and technology firm known for mathematical problem-solving, market making, and collaborative research-driven trading.