Remote Senior Smart Contract Engineer | Solidity & Protocol

Ztakora; Singapore; Remote; SGD 120,000 - 240,000; Full time

Job summary

VaultX seeks a Senior Smart Contract Engineer — RWA to own the contract boundary for asset issuance, controlled transfers, settlement, treasury movement and governed protocol change.

You will implement issuance, transfer-policy, settlement and emergency-control modules with invariant tests, and define deployment/runbooks with security ownership. Remote and Singapore overlap, full-time or contract-to-hire.

Qualifications

• Deep Solidity 0.8.x and EVM expertise.
• Proven track record in secure contract design and audits.
• Experience with fuzzing and invariant testing in Solidity.

Responsibilities

• Own issuance, transfer-policy, settlement and emergency-control modules.
• Design and enforce role separation, multisig, timelock and runbooks.
• Write unit, integration and invariant tests before releases.
• Review external contract contributions and document tradeoffs.
• Collaborate with backend/frontend teams on transaction state handling.

Skills

Solidity

EVM knowledge

Foundry

Security best practices

Technical writing

Tools

OpenZeppelin

Slither

Foundry

Job description

VaultX seeks a Senior Smart Contract Engineer — RWA to own the contract boundary for asset issuance, controlled transfers, settlement, treasury movement and governed protocol change.

You will implement issuance, transfer-policy, settlement and emergency-control modules with invariant tests, and define deployment/runbooks with security ownership. Remote and Singapore overlap, full-time or contract-to-hire.