Build the compiler from code to silicon.

The work is hard, the problem is real, and the team is small.

BoolSi compiles hotspots in C, C++, or Rust into custom-generated FPGA accelerators: no HDL, no chip-design team. We train ML models to learn a program's behavior and converge them into exact digital circuits.

That puts us at the intersection of compilers, machine learning, and hardware: three fields that rarely sit in the same room. We're early, well-funded, and shipping toward a private beta in Q3 2026. Everyone here owns a real piece of the stack.

We're based in Boston, backed by F-Prime, Pillar VC, Fifth Quarter Ventures, and Coalition Ventures.

Open roles.

• EngineeringBostonFull-time

  Compiler Engineer

  Own the pipeline that lowers a C, C++, or Rust hotspot into a verified circuit on an FPGA, front-end to bitstream.

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• ResearchBoston / Novi Sad / RemoteFull-time

  ML Research Engineer

  Train differentiable models that discover the exact discrete program behind a set of examples and converge into digital circuits. Exact, not approximate.

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Don't see your role? If you work at the boundary of compilers, ML, and hardware, we still want to hear from you.

What we offer.

• Competitive salary and meaningful equity, early enough to matter.
• Health, dental, and vision insurance.
• Flexible PTO.
• On-site or hybrid in Boston, or fully remote, depending on the role.
• A learning budget, because nobody walks in fluent in compilers, ML, and hardware all at once.