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Programming Language Engineer

Jane Street· Technology
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Hybrid (London)Full-timePosted 3mo ago

About the role

Software Engineers with a background in programming languages to join one of Jane Street's PL-focused teams. Roles span language design, compilers, runtimes, DSLs, tooling, and open-source work related to OCaml, Python, and in-house languages.

Qualifications

  • Deep experience with—and love for—programming languages (language design, type systems, compilers, runtimes, or DSL implementation)
  • Top-notch programming skills
  • Strong interpersonal skills and ability to collaborate in small, close-knit teams
  • Fluency in English
  • No prerequisite OCaml or functional programming experience required

Skills

Required:Programming languages
Last updated Oct 25, 2026. Interested? Apply on the company site.

About Jane Street

SIX

Jane Street is a quantitative trading firm and liquidity provider with a unique focus on technology and collaborative problem solving.

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