Senior Software Engineer, Developer Platform

The Developer Platform team at Offchain Labs builds KMS, the key-management and signing service behind ZeroDev's embedded (smart-account / account-abstraction) wallets. It's non-custodial: end users control keys, and the service orchestrates secure creation, authentication, and signing atop a third-party signing provider.

• Own backend Go services brokering wallet creation, authentication, and signing at scale
• Build key recovery and committee trust model (distributed key generation, secret sharing)
• Work with Trusted Execution Environments for hardware-isolated key material
• Integrate authentication and signing providers (passkeys/WebAuthn, OAuth, OTP, 2FA)
• Operate production services on Kubernetes with strong observability

• Strong backend engineer with production Go experience
• Security-first mindset with applied cryptography fundamentals
• Solid distributed systems and API design experience
• Operationally mature with Kubernetes

This is security-critical, externally audited infrastructure with a high review bar. Nice-to-have: TEE experience (AWS Nitro Enclaves, Intel SGX/TDX), threshold cryptography/MPC, and custody/signing provider integration (Turnkey, Fireblocks). Role cannot be performed in California or Colorado.