Job Title
Hardware Engineer
Role Summary
Design and implement FPGA and ASIC applications and improve internal hardware-design and testing tools. The role combines RTL design, verification, and tool development with a software-engineering approach to hardware.
You'll work on end-to-end projects (architecture through integration), primarily using OCaml and Hardcaml for RTL and test infrastructure, with some Verilog and C for integration and vendor toolflows.
Experience Level
Mid-level (Mid-Career). No explicit years-of-experience range provided.
Responsibilities
Deliver hardware designs and tooling, and participate in testing and integration.
- Architect and implement FPGA or ASIC RTL for new applications.
- Develop and extend high-level design and test tooling (e.g., Hardcaml/OCaml-based flows).
- Create and maintain testbenches, integration, and validation infrastructure.
- Work with vendor toolchains for synthesis/place-and-route for FPGAs and ASICs.
- Integrate designs with firmware and software components (Verilog, C).
- Collaborate with cross-functional teams to deploy hardware in target systems (including networking contexts).
- Document designs, participate in design reviews, and iterate based on testing results.
Requirements
Core technical skills and personal qualities required; separate list of desirable skills follows.
Must-have:
- Proficient in a software programming language and comfortable applying software engineering practices to hardware design.
- Experience with a Hardware Description or Construction language (VHDL, Verilog, Chisel, Pymtl, or similar) for writing and testing RTL.
- Experience using FPGA or ASIC vendor tools (examples: Vivado, Quartus, Genus, Innovus) and completing a working hardware project (academic, professional, or personal).
- Strong debugging and verification skills, and experience building testbenches or integration tests.
- Collaborative, intellectually curious, and able to learn new tools and languages quickly.
Nice-to-have:
- Experience with OCaml or other strongly typed functional languages and familiarity with Hardcaml or similar hardware-construction libraries.
- Previous work on networking-related hardware or low-latency systems.
- Experience across both FPGA and ASIC flows and higher-level tool development for RTL generation and testing.
Education Requirements
Not specified.
About the Company
Company: Jane Street
Headquarters: London, United Kingdom
Jane Street is a global trading firm and liquidity provider that specializes in technology-driven strategies. Established in 2000, the company focuses on providing liquidity and improving market efficiency through advanced analytics and trading technologies.

Date Posted: 2026-07-27