Programming Language Engineer

at Jane Street · Quant · New York, NY · Software Engineering

Jane Street is hiring an experienced Software Engineer to join their OCaml Language team. This role focuses on improving OCaml for their technology stack, collaborating with the OCaml community. Responsibilities include enhancing the type system, optimizing code performance, improving compiler speed and usability, and developing toolchain tools for profiling, debugging, and documentation. Most work is open-source.

What you'd actually do

  1. Improve OCaml as a foundation for our ever-growing technology stack
  2. Make it easier for developers to express their ideas in OCaml
  3. Improve the performance of the generated code
  4. Make the OCaml compiler itself faster and easier to use
  5. Extend and enhance the surrounding toolchain, working on tools for profiling, debugging and generating documentation

Skills

Required

  • Software Engineering
  • Programming Languages
  • Language Design
  • Language Implementation

Nice to have

  • OCaml
  • Functional Programming
  • Research experience in programming languages
  • Publications in programming languages

What the JD emphasized

  • practical language design and implementation in an industrial-strength implementation
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About the Position

We're looking to hire an experienced Software Engineer with a background working on programming languages to join us. Jane Street's OCaml Language team focuses on improving OCaml as a foundation for our ever-growing technology stack, in collaboration with the greater OCaml community. We work on many different aspects of the language, 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’ve 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 and generating documentation. The vast majority of our work is open-source, and we upstream as much as we can to the mainstream OCaml compiler.

About You

For this specialized role within the OCaml Language team, we are seeking candidates with multiple years of experience in practical language design and implementation in an industrial-strength implementation. Research experience and publications in programming languages is a plus, but not a requirement. No previous experience with OCaml or functional programming languages is required.

If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.