Senior Web3 Back-end EngineerRemoteSalary: $150K - $200KLocation: US/Europe/Latam/Dubai but must have 5hrs overlap with ESTJob Overview And ResponsibilityOut cient are the yield engine for the crypto economy. We are building the unified layer that connects capital to the best risk-adjusted yield across Decentralized Finance (DeFi). We aim to be the last vault you'll ever need, continuously and intelligently reallocating assets across protocols to maximize returns. You deposit, and They does the rest.We are backed by industry leaders: Paradigm, Haun Ventures, Hack VC, Solana, and Circle, and built by the expert team at The Opportunity: Multichain Yield ArchitectureWe are seeking an experienced Backend Web3 Engineer to take Them to the next level. This is a chance to start from ground zero and have immense ownership over the most complex aspects of our platform.This role is ideal if you thrive on technical problem-solving, excel in a fast-paced, high-ambiguity environment, and are passionate about architecting the transition from web2 to a multi-chain web3 future.Key Responsibilities & ImpactPlatform Architecture: Architect and build the most comprehensive multichain yield platform in DeFi.Protocol Integration: Design and implement robust backend systems that interface directly with various protocols and smart contracts.Complex Transaction Management: Own complex transaction flows, including interacting with RPC nodes, managing state, and ensuring reliable, secure on-chain interactions.Future Definition: Play a key role in defining and implementing the next generation of on-chain yield strategies and products.Security & Quality: Build secure and robust infrastructure, adhering to the highest standards for production-grade web3 systems.Required Skills and ExperienceWho You AreYou are an experienced Web3 backend specialist with a deep understanding of EVM and multi-chain interaction, coupled with a bias for action and autonomy.Essential QualificationsProduction Web3 Experience: 3+ years of experience building and releasing production-grade web3 backend systems.Protocol Integration Mastery: Strong track record of integrating with various protocols and smart contracts, including managing complex transaction flows and interacting seamlessly with RPC nodes.EVM and DeFi Fundamentals: Deep understanding of EVM fundamentals, smart contract best practices, and current industry patterns in DeFi.Tooling Proficiency: Experience with popular development and testing tools and libraries (e.g., Tenderly, ethers, viem, wagmi).Execution & Ownership:Biased towards action and able to work autonomously, thriving in high-ambiguity environments.Possess the perseverance to figure out the solution to any complex problem you encounter.Passionate about building products that deliver tangible value to customers and maintaining secure infrastructure.Nice to HavePrior experience deploying smart contracts to mainnet and various EVM-compatible chains.Why Candidate should apply this positionInterview Process1/ Founder / CEO Interview: 30 min initial screen with CEO2/ Hiring Manager Interview: tech screen 1h (Krasi)3/ Take Home Test4/ Hiring Manager Interview: 3x interviews with team membersHiring Criteria3+ years of experience building and releasing production-grade web3 backend systems.Strong track record of integrating with various protocols and smart contracts, including managing complex transaction flows and interacting seamlessly with RPC nodes.Deep understanding of EVM fundamentals, smart contract best practices, and current industry patterns in DeFi.Experience with popular development and testing tools and libraries (e.g., Tenderly, ethers, viem, wagmi).Prior experience deploying smart contracts to mainnet and various EVM-compatible chains is a nice to have.About out clientWith over 100 integrations and more on the way, They deliver unmatched diversification while continuously reallocating assets across all of DeFi to maximize yield. With simple yoETH, yoBTC, yoEUR and yoUSD tokens, users get access to the best of DeFi yield in a single deposit. They are not just another vault, it's the only vault you'll ever need.Exponential is now a product under YO. YO uses 's trusted ratings to generate optimized yield by balancing risk and reward.Email: -