Senior Backend Blockchain Engineer: APIs, Scale & Security

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

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.