Blockchain Wallet Engineer (Rust)
Mamoru
Location: Toronto, Canada
About the roleBuild 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.
Requirements
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.
#J-18808-Ljbffr
About the roleBuild 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.
Requirements
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.
#J-18808-Ljbffr
Vacancy posted 2 hours ago
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