Senior Smart Contract Developer

Placements24; Centurion; Hybrid; ZAR 900,000 - 1,300,000; Full time

Benefits offered by this job

Fully remote

Incentives and career growth

Job summary

Placements24 is seeking a Senior Smart Contract Developer to design, develop, test, and deploy secure Solidity contracts for DeFi, NFT, and DAO projects. Remote role with global collaboration.

You will mentor juniors, review code, optimize gas, and ensure security standards across Ethereum-compatible networks. Requires 4+ years, strong knowledge of EVM, Hardhat/Truffle, and testing.

Qualifications

• Minimum 4+ years of professional smart contract development experience.
• Proven track record deploying on Ethereum-compatible networks.
• Strong knowledge of Solidity, EVM, and security best practices.

Responsibilities

• Design, develop, test, and deploy secure and efficient smart contracts using Solidity.
• Implement business logic for DeFi, NFT, and DAO dApps.
• Write unit and integration tests to ensure contract reliability.
• Perform code reviews and security audits of smart contracts.
• Identify and mitigate gas inefficiencies and vulnerabilities.
• Collaborate with frontend, product, and design teams to deliver features.
• Stay updated with blockchain tech and security practices.
• Contribute to architecture and deployment procedures.
• Mentor junior developers and promote quality coding standards.

Skills

Solidity

Ethereum

DeFi primitives

NFT standards

Security best practices

Hardhat

Truffle

Ganache

Code reviews

Gas optimization

Education

Bachelor's degree in Computer Science or related field

Tools

Hardhat

Truffle

Ganache

ethers.js

Web3.js

Job description

About the Role

Our client is seeking a highly motivated and experienced Senior Smart Contract Developer to join their innovative team in a fully remote capacity. This role is crucial for developing and deploying secure, efficient, and robust smart contracts for decentralized applications (dApps) and blockchain protocols. You will be working on cutting-edge projects within the dynamic crypto and blockchain ecosystem, contributing to the core logic and functionality of our decentralized platforms. As a senior member of the team, you will mentor junior developers, influence technical decisions, and ensure the highest standards of code quality and security. The ideal candidate has a proven history of building complex smart contracts, possesses a deep understanding of EVM-compatible blockchains, and is passionate about the potential of decentralized technologies. This fully remote position allows you to contribute your expertise from anywhere, collaborating with a global team dedicated to pushing the boundaries of blockchain innovation.

Key Responsibilities

• Design, develop, test, and deploy secure and efficient smart contracts primarily using Solidity.
• Implement complex business logic within smart contracts for various dApps, including DeFi protocols, NFTs, and DAOs.
• Write comprehensive unit and integration tests to ensure the correctness and reliability of smart contracts.
• Perform code reviews and security audits of smart contracts developed by other team members.
• Identify and mitigate potential security vulnerabilities and gas inefficiencies in smart contract code.
• Collaborate closely with frontend developers, product managers, and designers to translate requirements into functional smart contracts.
• Stay up-to-date with the latest advancements in blockchain technology, smart contract languages, and security best practices.
• Contribute to the overall architecture and design of blockchain-based products and platforms.
• Optimize smart contract performance and gas usage for cost-effectiveness and scalability.
• Document smart contract logic, functionalities, and deployment procedures.
• Mentor and guide junior smart contract developers, fostering a culture of learning and excellence.

Requirements

• Minimum of 4+ years of professional experience in smart contract development, with a strong emphasis on Solidity.
• Demonstrable experience deploying and managing smart contracts on major blockchain networks (e.g., Ethereum, Polygon, Binance Smart Chain).
• Proficiency in understanding and implementing various DeFi primitives and NFT standards (ERC-721, ERC-1155).
• Solid understanding of EVM (Ethereum Virtual Machine) and its intricacies.
• Experience with smart contract development frameworks and tools (e.g., Hardhat, Truffle, Ganache).
• Familiarity with security best practices and common vulnerabilities in smart contracts.
• Experience with testing methodologies and tools for smart contracts.
• Strong analytical and problem-solving skills.
• Excellent communication and collaboration skills, especially in a remote setting.
• Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent work experience.
• Knowledge of other blockchain platforms and languages is a plus.

Benefits

• Fully remote work opportunity, providing excellent work-life balance and flexibility.
• Competitive salary and performance-based incentives.
• Engage in challenging and impactful projects within the fast-paced crypto and blockchain industry.
• Opportunities for professional development and career advancement.