Senior Security Engineer – DeFi

This is a fully remote position, open to applicants in Portugal.

📋 Description

• Take full ownership of the comprehensive design of our signing framework.

• Oversee, sustain, and consistently enhance the canonical address and contract allowlist system.

• Implement and strengthen real-time monitoring across wallets, custodians, and DeFi positions.

• Conduct independent technical evaluations of new protocol integrations.

• Regularly validate ERC-20 approval hygiene throughout the treasury.

⛳️ Requirements

• Expertise in Solidity and the EVM; capable of reading arbitrary contracts and raw calldata independently.

• Extensive hands-on experience with Gnosis Safe, Coinbase Prime, Anchorage, and Fireblocks.

• Strong practitioner-level understanding of DeFi protocols such as Aave, Morpho, and Stargate.

• A security-focused mindset that presumes a hostile environment by default.

• Demonstrated ability to communicate technical risks to non-technical stakeholders effectively.

🏝️ Benefits

• Flexible, remote-friendly work environment.

• Established opportunities for personal growth and learning.