Rain
Software Engineer - Wallets
$220K–$270K
Remote · Remote · Full-time · Posted Sep 3, 2026
About the job
Architect and build Rain’s secure, scalable wallet infrastructure for custody, key management, signing, authorization, recovery, and blockchain account models.
What you'll do
- Own wallet infrastructure architecture, including secure key management, signing, transaction, and recovery systems.
- Design flexible signing infrastructure and wallet systems across account models and multichain environments.
- Set technical direction for wallet security and make build-versus-buy decisions across cryptography, custody, and security infrastructure.
What they ask for
- Deep expertise in wallet, custody, cryptography, or security infrastructure, with strong distributed-systems and architecture fundamentals.
- Experience building production wallet, custody, signing, or key-management systems, especially for high-value assets.
- Strong knowledge of applied cryptography and experience with security infrastructure such as HSMs, secure enclaves, or TEEs.
- Understanding of modern wallet and blockchain account architecture, including account abstraction, ERC-4337, transaction orchestration, and multichain systems.
Pay
$220K – $270K (base salary)
Tools
MPC, HSMs, TEEs, EOAs, ERC-4337, ECDSA, EdDSA
Model-written summary · the original posting is authoritative