UTXO Smart Contract Developer- — DeFi Staking & Liquidation Engine Budget: $80–$120/hr | Part-time

About the Project We're a multichain dev collective building a non-custodial crypto payment product that lets users spend directly via Apple Pay and Google Wallet without giving up custody. Full details shared under NDA after a screening call. We need a UTXO-based smart contract developer to own the staking and liquidation architecture. What You'll Build Staking contracts that lock funds and set a dynamic spend limit tied to a live price feed Liquidation logic that swaps asset to stablecoin on a native DEX when a user spends Circuit breaker logic monitoring collateralization ratios, triggering partial liquidations or spend pauses Testnet deployment and validation ahead of mainnet launch You Are Experienced with UTXO-based smart contracts (Bitcoin, Cardano, or similar; specific chain shared after screening) Comfortable with Rust or C in a constrained VM environment Familiar with UTXO contract design vs. account-based models Able to share prior UTXO-chain contract work shipped to mainnet Nice to Have Liquidation/collateralization experience in DeFi Biometric auth in Web3 DAO-funded open source work To Apply Links to UTXO-chain work shipped to mainnet and your availability/rate.