Senior Smart Contract Engineer

Placements24; Gqeberha; Hybrid; ZAR 1,000,000 - 1,800,000; Full time

Benefits offered by this job

Token-based incentives

Fully remote

Flexible hours

Growth opportunities

Job summary

Placements24 is seeking a Senior Smart Contract Engineer to lead the design, development and deployment of secure, gas-efficient contracts for a cutting-edge blockchain platform. This fully remote role offers high-impact work on decentralized applications and a chance to shape core logic of crypto offerings.

The ideal candidate has 5+ years in software engineering with 3+ years in smart contract development, deep Solidity/EVM expertise, and a track record of secure, production-ready contracts

Qualifications

• 5+ years of professional software engineering experience with at least 3 years focused on smart contract development.
• Expert proficiency in Solidity and deep understanding of the Ethereum Virtual Machine (EVM).
• Proven experience deploying secure, production-ready smart contracts.
• Familiarity with blockchain security best practices and common attack vectors.
• Experience with testing frameworks like Hardhat, Truffle, or Foundry.

Responsibilities

• Design, develop, and deploy secure and gas-efficient smart contracts on Ethereum and other EVM-compatible blockchains.
• Write comprehensive unit and integration tests for all smart contract code.
• Conduct security audits and code reviews to identify vulnerabilities and mitigations.
• Collaborate with product managers and engineers to define requirements and architecture.
• Optimize performance and reduce transaction costs for end-users.

Skills

Solidity

Smart contract development

Blockchain security

Tools

Hardhat

Truffle

Foundry

Job description

About the Role

Our client is looking for a highly experienced Senior Smart Contract Engineer to lead the development of secure and efficient smart contracts for their innovative blockchain platform. This role is pivotal in shaping the core logic of our decentralized applications, operating within a fully remote structure. You will be instrumental in designing, implementing, and testing complex smart contracts that form the backbone of our crypto and blockchain offerings. If you are passionate about writing secure, gas-optimized code and driving innovation in decentralized systems, this opportunity in Port Elizabeth is for you.

Key Responsibilities

• Design, develop, and deploy secure and gas-efficient smart contracts on Ethereum and other EVM-compatible blockchains.
• Write comprehensive unit and integration tests for all smart contract code.
• Conduct thorough security audits and code reviews to identify and mitigate potential vulnerabilities.
• Collaborate with product managers and other engineers to define smart contract requirements and architecture.
• Optimize smart contract performance and reduce transaction costs for end-users.

Requirements

• 5+ years of professional software engineering experience, with at least 3 years specifically focused on smart contract development .
• Expert proficiency in Solidity and deep understanding of the Ethereum Virtual Machine (EVM).
• Proven experience in developing and deploying secure, production‑ready smart contracts.
• Familiarity with blockchain security best practices and common attack vectors.
• Experience with testing frameworks like Hardhat, Truffle, or Foundry.

Benefits

• Highly competitive salary and token‑based incentives.
• Fully remote position with flexible working hours.
• Opportunities for professional growth and learning in the fast‑paced blockchain industry .
• A chance to work on cutting‑edge crypto projects with significant impact.
• Supportive and collaborative team culture focused on innovation and excellence.