Hands-on staff-level backend IC building the hardest parts of The Vault, an MPC-based crypto custody platform: policy engine, signing orchestration, key lifecycle, recovery flows, and multi-tenant SaaS services. Core stack is modern systems languages (Go preferred) with gRPC, Postgres, Kafka/NATS, plus AI-assisted development (Claude Code, Cursor, Codex). Fully remote with EU/CIS hours overlap.
Sign in to see your match