Senior Staff Security Engineer DeFi
Ethena is a DeFi protocol enabling the creation of USDe, a synthetic dollar, and offering internet-native yield through staking.
Maintainer signals as of 9/2/2026
Funding history
Investors
About Ethena
Ethena is a decentralized finance protocol that allows users to mint USDe, a synthetic dollar, using liquid staking tokens as collateral. The platform also offers staking of USDe to earn yield in the form of sUSDe. Ethena aims to provide a stable, high-yield asset for the crypto ecosystem, combining the stability of a dollar-pegged token with the benefits of decentralized finance.
Skills
About the Role
This role owns the verification layer between operator intent and blockchain signatures, including signing controls, allowlists, monitoring, protocol reviews, risk management, treasury approval hygiene, reconciliation, and audit-grade documentation.
Requirements
- Mastery of Solidity and the EVM, including arbitrary contracts and raw calldata.
- Practical experience with Gnosis Safe, Coinbase Prime, Anchorage, and Fireblocks.
- Strong knowledge of Aave, Morpho, Stargate, risk parameters, oracle structures, and bridge message passing.
- Security-first mindset and commitment to rigorous verification.
- Ability to explain technical risks to non-technical stakeholders and produce audit-grade documentation.
Responsibilities
- Design and evolve signing regimes, signer thresholds, and pre-signature verification workflows.
- Manage canonical address and contract allowlists with documented review for additions.
- Operate monitoring across wallets, custodians, and DeFi positions within SOC 2 incident-response workflows.
- Review new protocol integrations and maintain the risk register.
- Verify ERC-20 approval hygiene and partner with Finance on on-chain reconciliation.
- Produce control, tooling, and decision documentation for auditors, underwriters, and institutional counterparties.
Benefits
- Flexible remote-friendly work environment
- Opportunities for personal growth and learning
