UTern

Opportunities · Research opportunity

Tools and Compilers Research and Development Intern

Jane Street

Applies on the employer's site

Apply with Birdee.

Pay
about $82-$100/hr
When
Summer 2027
Where
New York, NY

What you'll do

  • During the internship, you will work in collaboration with your mentors on one project for about 10-12 weeks.
  • You'll learn how we use OCaml in our day-to-day work, and gain exposure to the libraries and tools that are foundational to our internal systems.
  • You'll gain a better understanding of the wide range of problems we solve every day.
  • You'll try out new ideas and apply state-of-the-art research to a large actively-developed production codebase.

What they want

  • We're looking for PhD and masters students with outstanding research experience in programming languages, compilers, verification, and related areas.
  • Apply
  • Share this job
  • Helpful Links
  • web page
  • The work at Jane Street is technologically intense, and the systems we build play an essential role in everything we do.

Pay and perks

  • Base salary is $250,000.
Full posting

Tools and Compilers Research and Development

Internship, Flexible

Location

Nyc

Department

Technology

Team

Software Engineering

Apply

Share this job

About the position

We are excited to announce research internships in our Tools and Compilers group. We're looking for PhD and masters students with outstanding research experience in programming languages, compilers, verification, and related areas.

Jane Street's Compilers team focuses on improving OCaml as a foundation for Jane Street's ever-growing technology stack, in collaboration with the greater OCaml community. We work on many different aspects of the compiler, aiming to make it easier for developers to express their ideas in OCaml, to improve the performance of the generated code, and to make the OCaml compiler itself faster and easier to use.

Over the years, we extended the type system with support for novel language features, re-engineered the optimizer ground-up, and added feedback-directed optimization. We also extend and enhance the surrounding toolchain, working on tools for profiling, debugging, documenting, and building automation. The vast majority of our work is open-source, and we upstream as much as we can to the mainstream OCaml compiler.

During the internship, you will work in collaboration with your mentors on one project for about 10-12 weeks. You'll learn how we use OCaml in our day-to-day work, and gain exposure to the libraries and tools that are foundational to our internal systems. You'll gain a better understanding of the wide range of problems we solve every day. You'll try out new ideas and apply state-of-the-art research to a large actively-developed production codebase.

We'll pick a project that combines your research background with our active work on the OCaml compiler and core libraries. Example project areas include:

  • Type systems that track locality and uniqueness
  • Formal verification of OCaml programs
  • New language features for systems programming
  • Compiler testing and validation

You'll also be able to access our physical and virtual educational resources, attend guest speakers and social events, and hopefully get a real sense of what it would be like to work here full-time.

About you

We're looking for PhD and masters students with outstanding research experience in programming languages, compilers, verification, and related areas. We don't expect you to have a background in finance, OCaml, or functional programming. Please include the list of your peer-reviewed publications in your resume.

Base salary is $250,000.

Jane Street is an Equal Opportunity Employer

Apply

Share this job

Helpful Links

web page

Technology at Jane Street

The work at Jane Street is technologically intense, and the systems we build play an essential role in everything we do.

blog

Jane Street Blog

Musings from our engineers

web page

Open Source

From committing patches to the Linux kernel to releasing our own projects, we’re always looking for ways to participate in the open source community.

podcast episode

An inside look at Jane Street's tech internship

web page

Internships at Jane Street

tech talks

Tech Talks

A series of public tech talks, with speakers from Jane Street and the wider tech world.

Gtku

Get to Know Us: Rory talks Production Engineering

Gtku

Get to Know Us: Brittany talks Software Engineering

Our office in

New York

Dates for this one

Only the dates this listing publishes. Anything it leaves out is left out here too.

Posted

Jul 24, 2026

The employer's own record

Usually listed

Checking opening history…

Filed pay record

Checking public pay records…

Verified by UTern

Last read under an hour ago · pay stated in the listing

More at Jane Street

Other roles this employer has live right now.