Senior Solidity Engineer - DeFi & Web3 Remote

Placements24; East London; Híbrido; ZAR 900.000 - 1.600.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Health insurance

Retirement contributions

Descripción de la vacante

Unknown is seeking a Senior Solidity Developer to design, implement, and optimize secure smart contracts for DeFi platforms. The role is remote-first with asynchronous collaboration across a global team, focusing on high-performance contracts for Ethereum-compatible networks.

You'll contribute to security audits, testing, gas optimization, and upgradeability patterns, working with Hardhat/Foundry, and aligning with rigorous DevSecOps practices. A strong background in blockchain tech is essential.

Formación

• 5+ years of software development with 3+ years in Solidity.
• Deep understanding of Solidity and the EVM.
• Experience with DeFi protocols and token standards is preferred.
• Experience with testing, security reviews, and audits.

Responsabilidades

• Design, develop, test, and deploy secure smart contracts using Solidity.
• Perform code reviews and security audits to mitigate vulnerabilities.
• Develop and maintain test suites for robustness and reliability.
• Optimize gas usage and collaborate with frontend/backend teams.

Conocimientos

Solidity

Ethereum

DeFi protocols

Security auditing

Educación

Bachelor's or Master's in CS/SE

Herramientas

Hardhat

Truffle

Foundry

Descripción del empleo

Unknown is seeking a Senior Solidity Developer to design, implement, and optimize secure smart contracts for DeFi platforms. The role is remote-first with asynchronous collaboration across a global team, focusing on high-performance contracts for Ethereum-compatible networks.

You'll contribute to security audits, testing, gas optimization, and upgradeability patterns, working with Hardhat/Foundry, and aligning with rigorous DevSecOps practices. A strong background in blockchain tech is essential.