Windows Engineer
- Level
- Mid
Not stated in the posting: salary, work type, visa.
Open. First seen 3 October 2026.
About the role
About the position
Our goal is to give you a real sense of what it's like to work at Jane Street full time while also providing a truly unparalleled educational experience. As an intern, you are paired with full-time employees who act as mentors, collaborating with you on real-world projects we actually need done.
As a Windows Engineering intern, you'll work side by side with full-timers in the IT department to learn how we design, deploy, secure, and maintain the automation tools and key infrastructure components that are critical to Jane Street's success. Our Windows Engineers manage a combination of systems we've created ourselves, open-source tools meshed together to provide higher-level functions, and integrations with industry-leading third-party tools and platforms. All of these systems serve to support the Windows desktop and server estate, as well as the tech infrastructure across the company, regardless of platform.
Our automation tools help Engineers develop solutions and integrations quickly, efficiently, and reliably.
On any given day, you may be brainstorming approaches to improve systems and workflows, writing code, or learning about a new technology our team may want to deploy. You'll also learn how we use OCaml (our primary development language), F# (a similar language used with our Windows systems), and PowerShell (a scripting language used for the majority of our automation in IT) in our day-to-day work, and gain exposure to the libraries and tools that are foundational to our internal systems.
After your initial training, you'll work in tandem with full-timers on projects drawn directly from our team's mission-critical stack. While your projects may vary in scope and content, they could include things like::
- Developing and maintaining tools and applications related to Windows automation and configuration management
- Improving our CI/CD systems, cross-platform frameworks, and software development environments
- Improving the efficiency and scalability of our tools, services, and monitoring solutions
- Implementing editor and workflow improvements to streamline coding and deployment workflows across IT
Learn more about Jane Street's internship program here.
About you
If you've never thought about a career in finance, you're in good company. Many of us were in the same position before working here. If you have a curious mind, a collaborative spirit, and a passion for solving interesting problems, we have a feeling you'll fit right in. We're more interested in how you think and learn than what you currently know. You should be:
- A strong programmer who can demonstrate high potential and an aptitude for learning
- Experienced with .NET languages (C# or F#)
- Knowledgeable in operating system fundamentals and computer architecture
- Able to understand network protocols at a basic level
- Familiar with AI/LLMs and prompt engineering
- Intellectually curious, collaborative, and eager to learn
- Humble and unafraid to ask questions and admit mistakes
- A strong communicator
- As comfortable at the command line as you are in a GUI
- Fluent in English
The team: IT and Systems Engineering HIRES STEADILY
This role is one of 30 open in IT and Systems Engineering. 2 were posted in the last 30 days and the oldest in May: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Linux (18 of 30), PowerShell (17 of 30), Networking (14 of 30), Bash (13 of 30), Python (9 of 30), Active Directory (7 of 30), Unix (6 of 30)
OTHER ROLES ON THIS TEAM
- MacOS Engineer posted Oct 19
- IT Security Specialist posted Oct 5
- Unified Communications Engineer posted Aug 12
- Linux Engineer posted Aug 3
- Linux Engineer posted Aug 3
- IT Operations Engineer posted Aug 3
- IT Operations Engineer posted Jul 29
- Linux Engineer posted Jul 22
- IT Operations Engineer posted Jul 22
- Linux Engineer posted Jul 22
- Linux Engineer posted Jul 21
- IT Operations Engineer posted Jul 21
- Windows Engineer posted Jul 21
- Linux Engineer posted Jul 15
- Security Operations Engineer posted Feb 19
- Unified Communications Engineer posted Dec 30
- Infrastructure Security Engineer posted Oct 23
- IT Security Engineer posted Sep 5
- Windows Engineer posted Jun 23
- IT Operations Engineer posted Jun 18
- IT Operations Engineer posted May 30
- Linux Engineering Manager posted Jan 23
- Linux Engineering Manager posted Dec 10
- Linux Engineer posted Nov 17
- Linux Engineer posted Sep 17
- Linux Engineer posted Jul 8
- Windows Engineer posted Jan 17
- Windows Engineer posted May 6
- Linux Engineer posted May 2
From the team and dates on Jane Street's own job board.
Other openings for this role
2 open postings for this role in London, England, United Kingdom, first posted 3 October 2026. The company is likely hiring for more than one position. None has been taken down and posted again.
- 3 October 2026 – open
- 3 October 2026 – open (this posting)
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