Smart Contract Developer (Solidity)

Placements24; Mbombela (Nelspruit); Hybrid; ZAR 420,000 - 900,000; Full time

Benefits offered by this job

Competitive salary

Health benefits

Remote work

Flexible hours

Career growth

Paid time off

Cutting-edge tools

Job summary

Placements24 is seeking a skilled Smart Contract Developer for its remote team serving clients in Nelspruit, Mpumalanga and beyond. You will write, test, and deploy secure contracts on Ethereum, collaborating with auditors and front-end developers to integrate and secure applications.

Requirements include a CS/engineering degree, 2+ years in software, and strong Solidity/EVM knowledge. Remote-friendly role with growth in DeFi and cutting-edge tooling.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field.
• 2+ years of software development, with at least 1 year focused on blockchain and smart contract development.
• Proficiency in Solidity.
• Strong understanding of EVM and blockchain fundamentals.
• Experience with Hardhat, Truffle, Foundry.
• Familiarity with ERC-20, ERC-721, and ERC-1155.
• Knowledge of security best practices and common smart contract vulnerabilities.
• Experience with Git.
• Strong analytical and problem-solving skills.
• Excellent communication skills and ability to work effectively in a remote team.

Responsibilities

• Develop, test, and deploy secure and efficient smart contracts using Solidity.
• Write high-quality, audited, and production-ready smart contract code.
• Collaborate with front-end developers to integrate smart contracts with user interfaces.
• Participate in the design and architecture of new blockchain-based features and products.
• Perform thorough code reviews and security audits of smart contracts.
• Optimize smart contracts for gas efficiency and performance.
• Research and stay updated on best practices, emerging patterns, and security vulnerabilities in smart contract development.
• Troubleshoot and resolve issues related to smart contract deployment and execution.
• Work with external auditors to ensure contract security and compliance.
• Contribute to the development of documentation for smart contracts and protocols.

Skills

Solidity

Ethereum

EVM

Security best practices

Git

Analytical thinking

Communication

Remote collaboration

Education

Bachelor's degree in Computer Science, Engineering, or related field

Tools

Hardhat

Truffle

Foundry

ERC-20

ERC-721

ERC-1155

Git

Job description

About the Role

Our client, a fast-growing FinTech company developing innovative decentralized financial products, is looking for a skilled Smart Contract Developer to join their remote team, serving clients in the **Nelspruit, Mpumalanga** region and beyond. You will be responsible for writing, testing, and deploying secure and efficient smart contracts on platforms like Ethereum. This role requires a deep understanding of Solidity, blockchain architecture, and the ability to translate complex business logic into immutable code. You will work closely with other developers, product managers, and auditors to ensure the integrity and security of our client's decentralized applications and protocols. This is an exciting opportunity to contribute to the rapidly evolving DeFi landscape and build cutting-edge financial tools. The dynamic nature of smart contract development ensures continuous learning and problem-solving.

Key Responsibilities

• Develop, test, and deploy secure and efficient smart contracts using Solidity.
• Write high-quality, audited, and production-ready smart contract code.
• Collaborate with front-end developers to integrate smart contracts with user interfaces.
• Participate in the design and architecture of new blockchain-based features and products.
• Perform thorough code reviews and security audits of smart contracts.
• Optimize smart contracts for gas efficiency and performance.
• Research and stay updated on best practices, emerging patterns, and security vulnerabilities in smart contract development.
• Troubleshoot and resolve issues related to smart contract deployment and execution.
• Work with external auditors to ensure contract security and compliance.
• Contribute to the development of documentation for smart contracts and protocols.

Requirements

• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• 2+ years of experience in software development, with at least 1 year focused on blockchain and smart contract development.
• Proficiency in Solidity programming language.
• Strong understanding of Ethereum Virtual Machine (EVM) and blockchain fundamentals.
• Experience with smart contract development frameworks (e.g., Hardhat, Truffle, Foundry).
• Familiarity with token standards such as ERC-20, ERC-721, and ERC-1155.
• Knowledge of security best practices and common smart contract vulnerabilities.
• Experience with version control systems (e.g., Git).
• Strong analytical and problem-solving skills.
• Excellent communication skills and ability to work effectively in a remote team.

Benefits

• Competitive salary with potential performance bonuses.
• Comprehensive health, dental, and vision benefits.
• Fully remote work arrangement with flexible hours.
• Opportunities for professional growth and training in blockchain technologies.
• Chance to work on innovative DeFi products and protocols.
• Collaborative and supportive team environment.
• Generous paid time off.
• Exposure to cutting-edge smart contract development tools.