Compiler Engineer: Codegen & Optimizations for OxCaml

Jane Street Group, LLC; Northern, New York (KY, NY); Hybrid; USD 270,000 - 330,000; Full time

Benefits offered by this job

Annual discretionary bonus

Equal Opportunity Employer

Job summary

Jane Street in the United States is seeking an experienced software engineer to work on code generation for the OxCaml compiler, Jane Street’s OCaml variant. You will explore optimizations, implement changes, and benchmark across LLVM and other toolchains.

The ideal candidate is productive, comfortable using AI-assisted workflows, proficient with debuggers (lldb, gdb), and knowledgeable about x86-64 and AArch64 assembly. OCaml knowledge not required; leadership experience is a plus.

Qualifications

• Proven experience in compiler-related development and code generation.
• Strong debugging skills with tools like lldb/gdb.
• Experience with Linux development environments.
• Leadership experience managing a software team.
• Knowledge of x86-64 and AArch64 architectures.

Responsibilities

• Identify, implement, and benchmark optimizations for OxCaml codegen.
• Collaborate with multiple teams across Jane Street.
• Contribute to open-source OxCaml and related toolchains.

Skills

Code generation

Debugging tools

Linux development

Team leadership

x86-64 / AArch64 knowledge

Tools

LLVM

Job description

Jane Street in the United States is seeking an experienced software engineer to work on code generation for the OxCaml compiler, Jane Street’s OCaml variant. You will explore optimizations, implement changes, and benchmark across LLVM and other toolchains.

The ideal candidate is productive, comfortable using AI-assisted workflows, proficient with debuggers (lldb, gdb), and knowledgeable about x86-64 and AArch64 assembly. OCaml knowledge not required; leadership experience is a plus.