Senior Staff DeFi Engineer
$180k - $230kFramework Ventures
Senior/Staff DeFi Engineer Globally Remote – Ethena Labs – Engineering. Location European or Asian Time Zone. Role As a Senior DeFi Engineer, you will design, deploy, and maintain cutting‑edge DeFi infrastructure and products in stablecoins, staking, liquidity, and cross‑chain flows. You will act as a technical leader, bridging protocol development, security, and trading infrastructure to expand Ethena's market impact while safeguarding user and treasury assets. You will work closely with Security Engineering and Trading & Risk Engineering teams to integrate market data, liquidity signals, and execution systems into DeFi flows, enabling 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. Salary $180,000 - $230,000 a year Benefits Remote‑friendly work environment with flexible hours, opportunities for growth and learning, and a collaborative team that values creativity. At Ethena Labs, we empower individuals and institutions with greater control over their assets in a crypto‑native setting. #J-18808-Ljbffr Framework Ventures
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