Staff Software Engineer Smart Wallet and Account Abstraction

You will own smart-wallet architecture, including account models, signing, sessions, and gas abstraction. You will design ERC-4337 and EIP-7702 flows, secure dApp-facing wallet interfaces, custody and recovery systems, and paymaster strategy. You will lead technical decisions, mitigate wallet risks, set engineering standards, and resolve complex production issues.

Responsibilities

• Own smart-wallet and account-abstraction architecture
• Design account, signing, session-key, and permission models
• Own paymaster and gas-sponsorship strategy
• Harden dApp-facing signer security and transaction-confirmation flows
• Lead custody and recovery-roadmap design
• Drive cross-team decisions on wallet architecture, SDKs, data modeling, and reliability
• Identify and mitigate key-management, phishing, reorganization, dependency, and contract-upgrade risks
• Define engineering standards and review critical code, contracts, and designs
• Align technical plans with product, security, legal, and infrastructure stakeholders
• Resolve complex wallet and account-abstraction production issues

Requirements

• Deep hands-on ERC-4337 knowledge
• Knowledge of EIP-7702 and its risks
• Experience with production smart-account implementations
• Experience designing session keys and delegated permissions
• Knowledge of EIP-712, ERC-1271, WebAuthn, EIP-1193, EIP-6963, EIP-5792, and ERC-7677
• Experience operating production smart-wallet or account-abstraction systems
• Substantial engineering experience at a major crypto organization or comparable wallet, exchange, or account-abstraction infrastructure team
• Solidity and EVM fluency
• Knowledge of L2 wallet-design considerations
• Strong Go engineering skills
• TypeScript SDK design skills
• Distributed-systems experience
• PostgreSQL experience
• Kubernetes experience
• Kafka or NATS experience
• Git and CI/CD experience
• Production key-management experience
• Wallet threat-modeling knowledge
• Cross-team technical leadership and architectural influence
• Strong written and verbal communication