Senior/staff Defi Engineer - Remote Eligible

Senior/Staff DeFi Engineer

Ethena Labs is at the forefront of the next wave of DeFi, dedicated to building products for modern finance. Ethena is a synthetic dollar protocol built on Ethereum that provides a crypto-native solution for money, USDe, alongside a globally accessible dollar savings asset, sUSDe.

Our core mission is to provide truly crypto-native financial solutions that are globally accessible and bridge the gap between TradFi and the digital asset economy. We believe in transparency, efficiency, and empowering both individuals and institutions with greater control over their assets.

The Role

As a Senior DeFi Engineer, you'll be at the forefront of designing, deploying, and maintaining cutting-edge DeFi infrastructure and products in the realm of stablecoins, staking, liquidity, and cross-chain flows. You'll act as a technical leader in DeFi engineering, bridging protocol development, security, and trading infrastructure to deliver systems that expand Ethena's market impact while safeguarding user and treasury assets.

You'll work closely with our Security Engineering and Trading & Risk Engineering teams to integrate market data, liquidity signals, and execution systems into DeFi flows. Your work will enable safe automation of mint/redeem operations, LP strategies, and governance-controlled vaults while maintaining world-class security, scalability, and reliability.

What You'll Do

Architect and deliver core DeFi protocols: including staking, stablecoin integrations, and liquidity systems, ensuring deployments are secure, gas-efficient, and aligned with product roadmaps

Lead cross-chain infrastructure development: in bridging, messaging, LayerZero/LZCompose, and paymasters to ensure seamless UX with high reliability across supported chains

Partner with Security Engineering: to design and deliver modern, robust multisig/on-chain monitoring and tooling solutions

Enforce robust security practices: by implementing audits, fuzzing, invariant testing, and incident playbooks with 100% patching of high-severity issues within industry timelines

Collaborate with Trading & Risk Engineering: to integrate market data, liquidity signals, and execution systems into DeFi flows, enabling safe automation of critical operations

Own end-to-end lifecycle: of DeFi products from whitepaper/spec to contract implementation, deployment, monitoring, and upgrades while maintaining 99.9% uptime for critical contracts

Drive innovation: in stablecoin infrastructure by delivering new products in partnership with external stakeholders

Mentor junior and senior engineers: raising the team's DeFi depth and execution velocity while documenting learnings and establishing reusable frameworks

What We're Looking For

DeFi Protocol Expertise: Deep knowledge of smart contract patterns, staking, AMMs, stablecoins, bridges, governance, and liquidation mechanics

EVM Smart Contract Development: Proficiency in Solidity and EVM patterns with experience in advanced tools (Foundry, Tenderly, Slither, Echidna)

Solana Smart Contract Development: Proficiency in Rust and Solana patterns with experience in advanced tools (Foundry, Tenderly, Slither, Echidna)

System Design & Architecture: Ability to design scalable, gas-efficient, and upgradeable DeFi systems that balance modularity with reliability

Security-First Engineering: Experience anticipating vulnerabilities and applying formal verification, audits, fuzzing, and invariant testing

Cross-Chain Infrastructure: Practical experience with messaging protocols (LayerZero, Axelar, native bridges), paymasters, and multi-chain state sync

$180,000 - $230,000 a year

Join a forward-thinking, crypto-native company with a mission to revolutionize decentralized finance. Work alongside a passionate and innovative team that values collaboration and creativity. Enjoy a flexible, remote-friendly work environment with opportunities for growth and learning. If you subscribe to the mission of separating the dollar from the state, then we want to hear from you! We look forward to receiving your application and will be in touch after having a chance to review.