Blockchain Developer (Smart Contracts)

Placements24; Cape Town; Hybrid; ZAR 600,000 - 900,000; Full time

Benefits offered by this job

Hybrid work model

Medical aid

Provident fund

Paid time off

Training resources

Wellness programs

Team-building

Job summary

Placements24 in Cape Town is seeking a skilled Blockchain Developer specializing in smart contracts to join a hybrid team. You will build secure contracts, test rigorously, and collaborate with product managers and developers to deliver scalable blockchain solutions.

The ideal candidate has hands-on experience with Solidity/Vyper, dApp tooling, and secure coding practices, with a strong foundation in blockchain fundamentals.

Qualifications

• Experience building secure smart contracts with Solidity or Vyper.
• Strong understanding of blockchain concepts including consensus mechanisms and EVM.
• Familiar with dApp tooling: Truffle, Hardhat, Web3.js.
• Experience with Git version control.

Responsibilities

• Develop, test, and deploy secure and efficient smart contracts on various blockchain platforms (e.g., Ethereum, Polygon, Binance Smart Chain).
• Write high-quality, well-documented, and auditable smart contract code.
• Integrate smart contracts with front-end applications and backend services.
• Perform thorough code reviews and security audits of smart contracts developed by the team.
• Troubleshoot and debug smart contract issues, ensuring optimal performance and reliability.
• Research and implement new blockchain technologies and best practices.
• Collaborate with the team to define technical specifications and project requirements.
• Contribute to the overall architecture and design of blockchain-based products.

Skills

Solidity

Vyper

dApp development

Git

Education

Bachelor's degree in CS/Engineering

Tools

Truffle

Hardhat

Web3.js

Job description

About the Role

Our client is looking for a talented Blockchain Developer with a specialization in smart contract development to join their innovative team in Cape Town . This role offers a hybrid working arrangement, combining the flexibility of remote work with the collaborative benefits of in-office interaction. You will be at the forefront of creating secure, efficient, and scalable smart contracts for various blockchain applications, contributing directly to the evolution of decentralised technologies. The ideal candidate will possess a deep understanding of blockchain protocols and a passion for building secure, cutting‑edge decentralized applications (dApps). You will work closely with product managers, designers, and other developers to bring innovative blockchain solutions to life.

Key Responsibilities

• Develop, test, and deploy secure and efficient smart contracts on various blockchain platforms (e.g., Ethereum, Polygon, Binance Smart Chain).
• Write high-quality, well‑documented, and auditable smart contract code.
• Integrate smart contracts with front‑end applications and backend services.
• Perform thorough code reviews and security audits of smart contracts developed by the team.
• Troubleshoot and debug smart contract issues, ensuring optimal performance and reliability.
• Research and implement new blockchain technologies and best practices.
• Collaborate with the team to define technical specifications and project requirements.
• Contribute to the overall architecture and design of blockchain‑based products.

Requirements

• Proven experience in developing smart contracts using languages like Solidity, Vyper, or similar.
• Solid understanding of blockchain fundamentals, including consensus mechanisms, cryptography, and EVM.
• Familiarity with decentralized application (dApp) development and related tools (e.g., Truffle, Hardhat, Web3.js).
• Experience with version control systems like Git.
• Strong problem‑solving skills and attention to detail.
• Ability to work effectively both independently and as part of a team.
• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• Understanding of blockchain security best practices.

Benefits

Our client provides a competitive salary and a comprehensive benefits package. Enjoy the flexibility of a hybrid work model, with opportunities to engage with colleagues in our modern Cape Town office. We offer a performance‑based bonus, contributions to medical aid and provident funds, and generous paid time off. Continuous learning is encouraged through access to industry conferences and online training resources. You'll be part of a collaborative and innovative environment, working on projects that are shaping the future of blockchain technology. We also offer wellness programs and team‑building activities designed to foster a strong company culture.