Senior Solidity Developer - Smart Contracts & dApps

Placements24; Benoni; Presencial; ZAR 900.000 - 1.200.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Competitive salary and benefits

Opportunities to work on blockchain项目

Benoni, Gauteng, ZA in-office role

Professional development and learning

Direct contribution to cutting-edge科技

Descripción de la vacante

Placements24 in Benoni, Gauteng, ZA, seeks an experienced Senior Solidity Developer to design, develop, test, and deploy secure smart contracts on Ethereum-compatible networks. You will contribute to dApp backends, review code, optimize gas usage, and mentor junior developers in a collaborative, on-site environment.

The ideal candidate has strong Solidity expertise, deep knowledge of the EVM, familiarity with Hardhat/Truffle/Ganache, Web3.js or Ethers.js, and a track record delivering

Formación

• Proven professional experience in smart contract development using Solidity.
• Deep understanding of the Ethereum Virtual Machine (EVM) and blockchain fundamentals.
• Experience with blockchain development frameworks and tools (Hardhat, Truffle, Ganache).
• Familiarity with Web3.js or Ethers.js for interacting with the blockchain.
• Proficiency in a backend language such as JavaScript (Node.js), Python, or Go is a plus.
• Strong knowledge of security best practices for smart contracts.
• Excellent problem-solving and analytical skills, plus collaboration ability.

Responsabilidades

• Design, develop, and deploy robust and secure smart contracts using Solidity.
• Implement and test decentralized applications (dApps) and related backend services.
• Collaborate with product managers, designers, and engineers on requirements and solutions.
• Conduct code reviews to ensure quality, security, and efficiency.
• Optimize smart contracts for gas efficiency and performance.
• Troubleshoot and debug complex issues in development and production.
• Stay up-to-date with blockchain security considerations and advancements.
• Contribute to architectural design of new blockchain products.
• Write unit tests, integration tests, and participate in security audits.
• Mentor junior developers and share knowledge within the team.

Conocimientos

Solidity

EVM

Web3.js

Ethers.js

Node.js

Security

Problem solving

Communication

Git

Educación

Bachelor's degree in CS/Engineering

Herramientas

Hardhat

Truffle

Ganache

Descripción del empleo

About the Role

Our client is a rapidly expanding innovator in the blockchain technology sector, actively developing next-generation decentralized applications and smart contract solutions. We are seeking a highly skilled and experienced Senior Solidity Developer to join our core engineering team. This is an on-site role based in our Benoni, Gauteng, ZA office, fostering a highly collaborative and creative environment. You will be responsible for designing, developing, testing, and deploying secure and efficient smart contracts, playing a crucial role in bringing complex decentralized projects to life. The ideal candidate possesses a deep understanding of the Ethereum Virtual Machine (EVM), blockchain architecture, and best practices for secure smart contract development. If you are passionate about blockchain technology and have a proven track record of delivering high-quality code, we encourage you to apply.

Key Responsibilities

• Design, develop, and deploy robust and secure smart contracts using Solidity.
• Implement and test decentralized applications (dApps) and related backend services.
• Collaborate closely with product managers, designers, and fellow engineers to define project requirements and technical solutions.
• Conduct comprehensive code reviews to ensure code quality, security, and efficiency.
• Optimize smart contracts for gas efficiency and performance.
• Troubleshoot and debug complex issues in development and production environments.
• Stay up-to-date with the latest advancements and security considerations in the blockchain and smart contract space.
• Contribute to the architectural design of new blockchain products and features.
• Write unit tests, integration tests, and participate in security audits.
• Mentor junior developers and share knowledge within the team.

Requirements

• Proven professional experience in smart contract development using Solidity.
• Deep understanding of the Ethereum Virtual Machine (EVM) and blockchain fundamentals.
• Experience with blockchain development frameworks and tools (e.g., Hardhat, Truffle, Ganache).
• Familiarity with Web3.js or Ethers.js for interacting with the blockchain.
• Proficiency in a backend language such as JavaScript (Node.js), Python, or Go is a plus.
• Strong knowledge of security best practices for smart contracts and common vulnerability patterns.
• Excellent problem-solving and analytical skills.
• Strong communication and collaboration capabilities.
• Bachelor's degree in Computer Science, Engineering, or a related technical field, or equivalent practical experience.
• Experience with version control systems like Git.

Benefits

• Competitive salary and benefits package.
• Opportunity to work on exciting and impactful blockchain projects.
• Collaborative and supportive team environment in Benoni, Gauteng, ZA.
• Professional development and continuous learning opportunities.
• Direct contribution to cutting-edge decentralized technologies.
• Health and wellness programs.