Senior Smart Contract Engineer

Placements24; Polokwane; On-site; ZAR 600,000 - 1,200,000; Full time

Benefits offered by this job

Health insurance

Dental and vision insurance

Professional development opportunities

Conferences & networking

Job summary

Placements24 in Polokwane seeks a highly skilled Senior Smart Contract Engineer to design, develop, test, and deploy secure contracts for blockchain applications.

You will work with Solidity, Vyper, or Rust, audit code, optimize gas, and collaborate with product managers and engineers to translate requirements into reliable on-chain logic.

Qualifications

• 5+ years of software development experience with at least 3 years in smart contract development.
• Proficiency in Solidity, Vyper, or Rust.
• Strong understanding of blockchain, Ethereum Virtual Machine (EVM), and DApp architecture.
• Experience with Truffle or Hardhat and testing tools.

Responsibilities

• Develop and deploy secure, efficient, and well-documented smart contracts on blockchain platforms.
• Write comprehensive unit and integration tests for smart contracts to ensure functionality and security.
• Conduct security audits and vulnerability assessments of smart contract code.
• Collaborate with product managers and other engineers to translate requirements into smart contract logic.
• Optimize smart contract gas usage and performance.
• Stay updated with the latest developments in smart contract languages, security, and best practices.

Skills

5+ years of software development

Solidity

Vyper

Rust

Ethereum

Team collaboration

Tools

Truffle

Hardhat

Unit testing frameworks

Job description

About the Role

Our client is seeking a highly skilled and meticulous Senior Smart Contract Engineer to join their innovative team in Polokwane . You will be responsible for designing, developing, testing, and deploying secure and efficient smart contracts for a variety of blockchain applications. This role demands a deep understanding of blockchain technology, programming languages like Solidity, and a commitment to writing auditable, high-quality code. If you are passionate about building the foundational logic of decentralized applications and thrive in a collaborative environment, this is an excellent career opportunity.

Key Responsibilities

• Develop and deploy secure, efficient, and well-documented smart contracts on blockchain platforms.
• Write comprehensive unit and integration tests for smart contracts to ensure functionality and security.
• Conduct security audits and vulnerability assessments of smart contract code.
• Collaborate with product managers and other engineers to translate requirements into smart contract logic.
• Optimize smart contract gas usage and performance.
• Stay updated with the latest developments in smart contract languages, security, and best practices.

Requirements

• 5+ years of experience in software development, with at least 3 years specifically focused on smart contract development .
• Proficiency in smart contract programming languages such as Solidity, Vyper, or Rust.
• Strong understanding of blockchain principles, Ethereum Virtual Machine (EVM), and decentralized application architecture.
• Experience with smart contract development frameworks (e.g., Truffle, Hardhat) and testing tools.
• Knowledge of common smart contract vulnerabilities and mitigation techniques.
• Excellent analytical skills and the ability to solve complex problems in a team setting in Polokwane .

Benefits

• Competitive salary and performance-based bonuses.
• Comprehensive health, dental, and vision insurance.
• Opportunities for professional development and attending industry conferences.
• A collaborative work environment focused on innovation in the crypto & blockchain space.
• Direct impact on the development of cutting-edge decentralized applications.