Software Engineer - Wallets
Core
Architect and build secure, scalable wallet infrastructure for custodial and non-custodial systems, handling key management, transaction signing, and high-value asset custody.
Role type
Senior IC Security & Wallet Infrastructure Architect
Builds
Production wallet systems, signing infrastructure, and key management solutions for stablecoin payments
Domain
Fintech, Cryptography, Blockchain Security
Required skills
Distributed systems architecture, Applied cryptography (MPC, threshold signatures, ECDSA, EdDSA), HSM/TEE/secure enclave integration, Smart contract wallet design (ERC-4337, account abstraction), Secrets management, Threat modeling, High-availability system design
Preferred skills
Experience with multichain infrastructure, Hardware-backed key isolation, Policy engine design, Building from first principles
Technologies
MPC, HSM, TEE, Secure Enclaves, Confidential Computing, ERC-4337, Smart Contract Wallets, ECDSA, EdDSA
Responsibilities
Design flexible signing infrastructure supporting MPC and secure enclaves; Architect security-critical key management systems; Build highly available signing infrastructure for high-value assets; Define boundaries between cryptography and wallet orchestration; Make foundational build-vs-buy decisions for security infrastructure; Set technical direction for wallet security and programmable authorization
Seniority
Senior, hands-on IC
