Wallet Infrastructure Software Engineer at Rain

Confirmed open

Design secure custody, key management and transaction-signing systems for Rain’s stablecoin wallet platform. The employer lists this role as remote in the United States.

Rain

Search jobs by company: Rain

Location: Remote
Employment: FullTime
Work arrangement: remote

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Role overview

Rain seeks an engineer to build custodial and non-custodial wallet infrastructure from the architecture level.

Responsibilities

Design custody, signing, authorization, recovery and high-availability transaction services.
Build flexible signing infrastructure for MPC, HSMs, secure enclaves and other cryptographic approaches.
Support smart-contract wallets, account abstraction, ERC-4337 and multichain account models.
Set key-management and wallet-security direction through threat models and build-versus-buy decisions.

Qualifications

Production experience with wallet, custody, signing or key-management systems and strong distributed-systems design.
Knowledge of applied cryptography, hardware-backed key isolation and modern blockchain account architectures.
Ability to explain security, reliability and developer-experience tradeoffs and carry architecture through production.

Benefits

The posting describes flexible working and unlimited time off with a ten-day minimum.

About Rain

Rain provides stablecoin payment and wallet infrastructure for businesses and developers.

How to apply

Review the original posting and apply through the employer’s careers page.

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Source checked: 2026-11-02

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