Lead Solidity Engineer for DeFi — Remote & Security‑Driven

Placements24; East London; Hybrid; ZAR 1,200,000 - 2,400,000; Full time

Benefits offered by this job

Remote work

Competitive salary

Equity options

Health insurance

Home office budget

Professional development

Flexible hours

Paid time off

Job summary

Placements24 is seeking a Lead Smart Contract Engineer to join a fully remote team, driving the design, development, and security of smart contracts across EVM chains. You will mentor engineers, define technical direction, and ensure code quality and safety in a distributed environment.

The role requires 7+ years in software development with 4+ years in smart contracts, expert Solidity, and deep EVM knowledge. Remote-first with competitive compensation and equity options.

Qualifications

• 7+ years of professional software development experience, with 4+ years on smart contracts.
• Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.
• Expert Solidity; experience with Vyper or Yul is a plus.
• Deep understanding of Ethereum Virtual Machine and common vulnerabilities.
• Experience with smart contract security auditing and best practices.
• Familiarity with DeFi protocols and token standards (ERC-20, ERC-721).
• Strong leadership and mentoring abilities for remote teams.

Responsibilities

• Lead the design, development, testing, and deployment of complex smart contracts on EVM-compatible blockchains.
• Establish best practices for development, reviews, and security audits.
• Mentor and guide a team of smart contract engineers.
• Architect upgradeable smart contract systems and migration strategies.
• Collaborate with product teams to translate business requirements into secure logic.
• Identify and mitigate potential security vulnerabilities to protect user funds.
• Stay ahead of industry trends and new tools in blockchain security.
• Contribute to internal tooling and deployment infrastructure for smart contracts.
• Engage with stakeholders and provide clear technical recommendations.
• Ensure compliance with relevant standards and regulatory requirements where applicable.

Skills

Solidity

Smart contracts

Blockchain engineering

Leadership

Security auditing

Hardhat

Truffle

Foundry

DeFi protocols

DAO governance

Education

Bachelor's or Master's in CS/SE

Tools

Hardhat

Truffle

Foundry

Job description

Placements24 is seeking a Lead Smart Contract Engineer to join a fully remote team, driving the design, development, and security of smart contracts across EVM chains. You will mentor engineers, define technical direction, and ensure code quality and safety in a distributed environment.

The role requires 7+ years in software development with 4+ years in smart contracts, expert Solidity, and deep EVM knowledge. Remote-first with competitive compensation and equity options.