Senior Smart Contract, Backend Engineer

🕒 March 18

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Yei Finance

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2024

₿ Crypto

💳 Fintech

💰 $2M Seed on 2025-01

Crypto • Fintech

Yei Finance is a multichain decentralized finance (DeFi) platform that enables users to lend, trade, bridge, and provide liquidity across multiple blockchains. The product suite includes pre-deposit vaults for one-click cross-chain deposits and automated yield strategies, a lending market (YeiLend) offering supply/borrow markets, and a decentralized exchange (YeiSwap) that combines swap fees, lending interest, and rewards to maximize yields. The platform emphasizes cross-chain compatibility (Sei, Arbitrum, Ethereum, HyperEVM, etc. ), passive APY rewards, and a native rewards scheme (Clovis points).

📋 Description

• Design, develop, and optimize DeFi protocols on EVM-compatible chains, emphasizing contract architecture, security, gas optimization, and upgradability • Develop key backend and off-chain services in Go or Python, including monitoring systems, liquidation bots, and liquidity rebalancers • Tackle cross-chain integration challenges, ensuring atomicity, data consistency, and reliable asset bridging in an asynchronous environment • Rapidly iterate in an Agile environment and produce robust documentation and system architecture diagrams

🎯 Requirements

• 3+ years of smart contract development experience in Solidity, including familiarity with OpenZeppelin standards, Mainnet deployments, and audit collaboration • Proficiency in Golang or Python, with a proven track record in developing high-concurrency or distributed systems • Deep understanding of the mathematical models and business logic behind DeFi protocols (lending, AMMs, or derivatives) • Mastery of development tools: Hardhat / Foundry and related testing frameworks • Solid grasp of EVM internals, storage, memory, gas, and transaction lifecycle

🏖️ Benefits

• Competitive salary and token allocation • Fully remote setup with autonomy and flexible hours • Play a direct role in building 0→1 products