Backend Engineer

Gondor · JavaScript · SQL · Node JS · Solidity · 1 day ago
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Salary
≈ $128k – $277k per year (Estimated)
Location
In office (New York)
Employment
Full-Time

First seen by Alion on Oct 28, 2026.

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Gondor

The DeFi layer for prediction markets. Use your Polymarket positions as collateral and borrow up to 50% of their current value.
gondor.fi · New York · UTC-05:00 · DeFi

Gondor is looking for a Backend Engineer to build onchain cross-margining and backend infrastructure for its web app.

You will join the founding team and work across the protocol and product sides of the application. You will build onchain infrastructure for permissionless cross-margining and backend infrastructure for the Gondor web app. You will use the stated backend, protocol, and DevOps stack to support margin-trading infrastructure.

Responsibilities
  • Build onchain infrastructure for permissionless cross-margining
  • Build backend infrastructure for the Gondor web app
Requirements
  • Experience building liquidation engines, oracles, or margin trading infrastructure
  • Deep understanding of DeFi lending protocols
  • Strong familiarity with smart contract security and exploits
  • Ability to analyze attack vectors
  • Knowledge of Node.js, Express, Hono, SQL, REST, and GraphQL
  • Knowledge of Solidity, Hardhat, Foundry, Viem, ethers.js, and Privy
  • Knowledge of Vercel, AWS, GCP, CI/CD, and Docker
Benefits
  • Equity
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