Rust Jobs for Rustaceans

About 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.

Key Responsibilities:

• 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

Requirements:

• 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

Why Ethena Labs?
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.