Blockchain Developer - Backend
Summary
Backend blockchain developer at a fast-growing fintech startup building decentralized payment solutions in Soweto, South Africa. Day to day: developing backend services and APIs, writing Solidity smart contracts for payment processing, and integrating blockchain protocols with cloud infrastructure.
About the Role Our client, a rapidly growing fintech startup specializing in decentralized payment solutions, is looking for a skilled Backend Blockchain Developer to join their team in Soweto, Gauteng, ZA. This role is critical for developing and maintaining the server-side logic and blockchain integrations that power our client's innovative products. You will work closely with front-end developers and product managers to deliver high-quality, secure, and scalable decentralized applications. This is an exciting opportunity to contribute to the evolution of digital finance and gain hands-on experience in a fast-paced, innovative environment. The ideal candidate is a strong backend engineer with a passion for blockchain technology.
Key Responsibilities
- Develop and maintain robust backend services and APIs for blockchain applications.
- Implement and optimize smart contracts for payment processing and transaction management.
- Integrate blockchain protocols with existing backend systems and third-party services.
- Ensure the security, scalability, and performance of backend infrastructure.
- Write efficient, well-documented, and maintainable code.
- Collaborate with front-end developers to ensure seamless integration between the client and server sides.
- Participate in code reviews, testing, and debugging processes.
- Stay updated on the latest backend development technologies and blockchain advancements.
- Contribute to architectural decisions and technical strategy.
Requirements
- Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent experience.
- Minimum of 4 years of professional backend development experience.
- Proven experience with blockchain development, including smart contract programming (e.g., Solidity).
- Proficiency in backend programming languages such as Node.js, Python, Go, or Java.
- Strong understanding of blockchain principles, distributed ledger technology, and cryptocurrency concepts.
- Experience with database management (e.g., PostgreSQL, MongoDB).
- Familiarity with cloud platforms (e.g., AWS, Azure) and containerization (Docker).
- Excellent problem-solving and analytical skills.
- Strong communication and teamwork abilities.
- Experience with version control systems (Git).
Benefits
Our client offers a competitive salary, comprehensive benefits, and opportunities for professional growth within a dynamic startup environment. You will play a key role in developing innovative solutions in the burgeoning blockchain space. This position is located in Soweto, Gauteng, ZA, providing a chance to contribute to local technological development. Join a collaborative team focused on building the future of decentralized finance.

