Senior Blockchain Developer - Backend

Placements24; Randburg; On-site; ZAR 900,000 - 1,500,000; Full time

Benefits offered by this job

Salary with annual bonuses

Medical aid

Life insurance

Retirement fund contributions

Job summary

Placements24 is seeking a highly experienced Senior Backend Blockchain Developer to join our Randburg-based technical team. You will design, build, and maintain backend infrastructure powering enterprise blockchain products and APIs; integrate with networks and ensure scalability and security.

You will mentor juniors, review code, and stay ahead of blockchain advancements while collaborating with product and frontend teams to shape feature requirements.

Qualifications

• 5+ years backend software development experience.
• 3+ years blockchain backend development experience.
• Strong knowledge of backend languages and APIs.

Responsibilities

• Design, develop, and deploy scalable backend services and APIs for blockchain applications.
• Integrate backend systems with various blockchain networks and protocols.
• Write clean, maintainable code and conduct code reviews.
• Collaborate with frontend, product, and stakeholders to define requirements.
• Implement robust security TBD measures to protect data and assets on the blockchain.
• Optimize performance, queries, and server efficiency.
• Mentor junior developers and contribute to team growth.

Skills

Node.js

Python

Go

Java

REST APIs

Cloud platforms

Security best practices

Team collaboration

Education

Bachelor's degree in Computer Science/Engineering

Master's degree (preferred)

Tools

SQL/NoSQL databases

ORMs

AWS/Azure/GCP

Job description

About the Role

Our client, a dynamic and fast-growing enterprise specializing in blockchain solutions for various industries, is seeking a highly experienced Senior Backend Blockchain Developer to join their core technical team in Randburg, Gauteng . This role is central to designing, building, and maintaining the backend infrastructure that powers our client's innovative blockchain products. You will be responsible for developing robust APIs, integrating with blockchain networks, and ensuring the scalability and security of our systems. The ideal candidate possesses a deep understanding of backend development principles, blockchain protocols, and distributed ledger technologies. This position offers an exciting opportunity to work on challenging projects and shape the future of enterprise blockchain in the vibrant economic hub of Randburg .

Key Responsibilities

• Design, develop, and deploy scalable backend services and APIs for blockchain applications.
• Integrate backend systems with various blockchain networks and protocols.
• Write clean, efficient, maintainable, and well-documented code.
• Collaborate with frontend developers, product managers, and other stakeholders to define project requirements.
• Implement robust security measures to protect data and assets on the blockchain.
• Optimize application performance, database queries, and server efficiency.
• Conduct thorough code reviews and participate in architectural discussions.
• Troubleshoot and resolve complex technical issues in production environments.
• Stay up-to-date with the latest backend technologies and blockchain advancements.
• Mentor junior developers and contribute to team growth.

Requirements

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• Minimum of 5 years of experience in backend software development.
• At least 3 years of experience specifically in blockchain development, focusing on backend infrastructure.
• Strong proficiency in backend programming languages such as Node.js, Python, Go, or Java.
• Experience with database technologies (SQL and NoSQL) and ORMs.
• Familiarity with blockchain concepts, consensus mechanisms, and distributed ledger technologies.
• Experience building and consuming RESTful APIs.
• Understanding of security best practices in backend and blockchain development.
• Experience with cloud platforms (AWS, Azure, GCP) is highly desirable.
• Excellent problem-solving and debugging skills.
• Strong communication and teamwork abilities.

Benefits

Our client offers a competitive salary package, including annual bonuses and potential for performance-based incentives. Comprehensive medical aid, life insurance, and retirement fund contributions are provided. Employees benefit from ample paid time off and significant opportunities for professional development, including training budgets and access to industry conferences. Join a leading technology firm in Randburg, Gauteng , and contribute to impactful blockchain projects.