Blockchain Wallet Engineer

About the role Build and run the multi-chain Blockchain wallet and custody systems for our trading desk: keep funds safe and move them fast between wallets, exchanges and chains. What you’ll do Build hot / warm / cold wallets across EVM, Solana, BTC, TRON. Implement secure signing and key management: MPC/TSS, multisig, HSM.

Automate deposits, withdrawals and transfers, with whitelists and approval workflows. Handle transaction construction, nonces, gas, stuck or failed transactions and reorgs. Run nodes and RPC connections.

Monitor and reconcile on-chain and exchange balances, and raise alerts on anomalies. Own wallet security and incident response.

Rust (must-have). Go, C++ or Python is a plus. 3+ years building wallet, custody or payment systems in production.

Multi-chain: EVM plus at least one non-EVM chain. Hands-on MPC/TSS, multisig or HSM signing. Nodes, RPC, reorg and confirmation handling.

Bachelor’s degree in CS, Engineering or a related field. Strongly preferred Wallet experience at an exchange, custodian or trading firm. Exchange deposit/withdrawal APIs, cross-chain bridges.

Solidity / smart contracts.