Blockchain Developer (Smart Contracts)

Placements24; Polokwane; Hybrid; ZAR 420,000 - 780,000; Full time

Benefits offered by this job

Competitive salary

Health benefits

Hybrid work model

Training and growth opportunities

Job summary

Placements24 is seeking a dedicated Blockchain Developer with a focus on smart contracts to join our Polokwane team. You will design, develop, test, and deploy secure contracts, collaborating with product managers and engineers to translate business logic into reliable code.

The role requires Solidity proficiency, familiarity with Hardhat/Truffle/Ganache, and a strong emphasis on security and testing. Hybrid work in Polokwane with opportunities for growth in a fast-evolving crypto space.

Qualifications

• Bachelor's degree in CS or related field.
• 2+ years of software development with 1+ year in blockchain and smart contracts.
• Solidity proficiency required; other languages such as Vyper/Yul are a plus.
• Familiarity with blockchain environments and tools (Hardhat, Truffle, Ganache).
• Understanding of ERC-20 and ERC-721 standards; testing and security practices.
• Git version control and collaborative development in a hybrid team.

Responsibilities

• Design, develop, test, and deploy secure and efficient smart contracts on blockchain platforms (e.g., Ethereum, Binance Smart Chain).
• Write clean, maintainable, and well-documented smart contract code using Solidity or other relevant languages.
• Collaborate with product managers and other developers to define smart contract requirements and functionalities.
• Perform rigorous testing, including unit testing, integration testing, and security audits for smart contracts.
• Identify and remediate vulnerabilities in smart contract code to ensure the highest level of security.
• Optimize smart contracts for gas efficiency and performance.
• Stay up-to-date with the latest developments in blockchain technology and smart contract best practices.
• Participate in code reviews and contribute to the continuous improvement of development processes.
• Assist in the integration of smart contracts with front-end applications and back-end systems.
• Contribute to technical documentation related to smart contract development and architecture.

Skills

Solidity

Blockchain concepts

Security best practices

Testing frameworks

Git

Hybrid teamwork

Education

Bachelor's degree in Computer Science or related field

Tools

Hardhat

Truffle

Ganache

Job description

About the Role

Our client is seeking a dedicated Blockchain Developer with a specialization in Smart Contracts to join their innovative team in Polokwane . This role is crucial for the development and deployment of secure, efficient, and reliable smart contracts that power our cutting-edge blockchain applications. You will be instrumental in translating complex business logic into secure code, ensuring the integrity and functionality of our decentralized solutions. The ideal candidate possesses a strong understanding of blockchain protocols, smart contract programming languages like Solidity, and best practices for secure development. Working within our Polokwane office, you will collaborate with a team of talented engineers and product managers to bring innovative ideas to life in the fast-evolving crypto space. This hybrid role offers a dynamic work environment that balances focused individual work with collaborative team sessions. You'll have the opportunity to work on challenging projects and contribute directly to the success of our blockchain platform. Your skills will be at the core of our technical advancements.

Key Responsibilities

• Design, develop, test, and deploy secure and efficient smart contracts on blockchain platforms (e.g., Ethereum, Binance Smart Chain).


• Write clean, maintainable, and well-documented smart contract code using Solidity or other relevant languages.


• Collaborate with product managers and other developers to define smart contract requirements and functionalities.


• Perform rigorous testing, including unit testing, integration testing, and security audits for smart contracts.


• Identify and remediate vulnerabilities in smart contract code to ensure the highest level of security.


• Optimize smart contracts for gas efficiency and performance.


• Stay up-to-date with the latest developments in blockchain technology and smart contract best practices.


• Participate in code reviews and contribute to the continuous improvement of development processes.


• Assist in the integration of smart contracts with front-end applications and back-end systems.


• Contribute to technical documentation related to smart contract development and architecture.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, or a related field.


• 2+ years of professional experience in software development, with at least 1 year focused on blockchain and smart contract development.


• Proficiency in Solidity is essential; experience with other smart contract languages (e.g., Vyper, Yul) is a plus.


• Familiarity with blockchain development environments and tools (e.g., Hardhat, Truffle, Ganache).


• Understanding of blockchain fundamentals, including consensus algorithms, cryptography, and token standards (ERC-20, ERC-721).


• Experience with testing frameworks and methodologies for smart contracts.


• Knowledge of security best practices for smart contract development.


• Familiarity with version control systems like Git.


• Strong problem-solving skills and attention to detail.


• Ability to work effectively in a hybrid team setting based in Polokwane .

Benefits

• Our client offers a competitive salary, comprehensive health benefits, and opportunities for professional growth within the blockchain industry.


• The hybrid work model provides flexibility, allowing for collaboration in our Polokwane office while also offering remote workdays.


• Employees have access to training programs and the chance to work on exciting, impactful projects.


• We foster a collaborative and innovative work culture, encouraging continuous learning and development.

Join our team and contribute to building the future of decentralized technologies.