Why work here
- Work that ships.Improve a production gateway, not a portfolio project.
- Own a bounded problem.Start with a clear technical question and take it through to a useful result.
- Make it hold when checked.The format and verifier are open, so the work has to stand up to another engineer reading it.
Open roles
Senior Software Engineer
Seal clears an AI request before it runs and signs a record of what was decided. You would work on the signing side and the open specification behind it: Ed25519 signing, canonical serialisation that has to produce byte-identical output in Python and TypeScript, an append-only Merkle log built to RFC 6962, and two reference verifiers kept behaviourally identical by a conformance suite. The hard part is not the cryptography. It is that the record has to survive being read by someone who has no reason to trust us.
You
- Strong in Python and TypeScript, and you like cryptography and specifications.
- You enjoy working out how things break, because most of this job is reasoning about an adversary who controls the record.
Seal Engineering Intern
Work on Seal, the production gateway that clears AI requests and signs a record of the decision before the model call. You will own a bounded piece of backend or infrastructure work, from design through deployment, on a system already live.
You
- Comfortable in Python, and you care that code reads as cleanly as it runs.
- Ready to make a well-defined part of a production system materially better.
ZK / Cryptography Research Intern
This is research, not a deployed gateway feature. Explore how a proof can show that a policy held without dumping sensitive digests, then turn the useful parts into prototypes against the open ATTESTATION-v1 format and public verifiers.
You
- A strong mathematics or computer-science foundation, with curiosity about elliptic-curve cryptography and proof systems.
- Familiarity with Groth16, Schnorr proofs, Rust, Python, or circom is useful but not required.
How we work
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