Backend Engineer
Core
Build onchain infrastructure for permissionless cross-margining and backend infrastructure for the Gondor web app to serve institutions and advanced traders.
Role type
Senior Backend Engineer (DeFi/Protocol)
Builds
Onchain cross-margining protocol and backend services for a prediction market financial infrastructure
Domain
Decentralized Finance (DeFi), Prediction Markets, Financial Infrastructure
Deliverable
production ML models | product features | infrastructure
Required skills
Node.js, SQL, REST, GraphQL, Solidity, Hardhat, Foundry, Viem/ethers.js, Privy, liquidation engines, oracles, margin trading infrastructure, smart contract security, attack vector analysis
Preferred skills
Deep understanding of DeFi lending protocols, experience building liquidation engines, oracles, and margin trading infrastructure
Technologies
Node.js, Express, Hono, SQL, REST, GraphQL, Solidity, Hardhat, Foundry, Viem, ethers.js, Privy, Vercel, AWS, GCP, Docker
Responsibilities
Build onchain infrastructure for permissionless cross-margining; Build backend infrastructure for the Gondor web app
Seniority
Senior, hands-on IC