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Mamoru

Blockchain Wallet Engineer (Rust)

Toronto, ON, Canada

Full-time

Apply on mamoru.applytojob.com About employer

Applications open in a new tab.

Job details

Job type: Full-time
Apply by: Feb 8, 2027
Posting language: English
Posted: Nov 10, 2026

Original job description

Location: Toronto, Canada

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.

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.

Apply on mamoru.applytojob.com About employer

More about this job

Responsibilities

Develop and maintain multi-chain blockchain wallet and custody systems for a trading desk. Manage secure key signing, transaction automation, and on-chain balance reconciliation.

Requirements

Requires at least 3 years of experience building production-level wallet or payment systems with proficiency in Rust. Must have hands-on experience with multi-chain environments and secure key management protocols.

Skills

Rust
Blockchain
Wallet Development
Custody Systems
MPC
TSS
Multisig
HSM
EVM
Solana
BTC
TRON
Node Management
RPC
Transaction Construction
Smart Contracts

Visa sponsorship

Not detected in the job text

Keywords

Blockchain
Rust
Wallet
Custody
MPC
TSS
Multisig
HSM
EVM
Solana
BTC
TRON
Node
RPC
Transaction
Gas
Reorg
Security
Trading
Exchange
Solidity
Smart Contracts
Go
C++
Python
Payment Systems
Cross-chain
Bridges
API
Reconciliation

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Work requirements

Jobs in Canada