Senior Backend Engineer - Blockchain

Placements24; Gauteng; On-site; ZAR 1,000,000 - 1,800,000; Full time

Benefits offered by this job

Competitive salary

Annual bonus

On-site office in Pretoria

Health, dental, and vision insurance

Professional development and trainings

Job summary

Placements24 in Pretoria is seeking a Senior Backend Engineer with a passion for blockchain to design, build and scale backend services powering crypto applications.

You will work with Go, Node.js, Python or Java, craft RESTful APIs, and collaborate with cloud and container teams to ensure high performance and security.

Qualifications

• 5+ years of backend software development experience, with blockchain projects.
• Proficiency in Go, Node.js, Python or Java.
• Experience building RESTful APIs and microservices.
• Strong understanding of distributed systems, databases (SQL/NoSQL) and caching.
• Familiarity with blockchain concepts, wallets and consensus mechanisms.
• Experience with cloud platforms and containerization (Docker, Kubernetes).

Responsibilities

• Design, develop, and maintain scalable backend services and APIs for blockchain applications.
• Integrate backend systems with blockchain protocols, nodes, and wallets.
• Optimize performance, queries, and architecture for high throughput and low latency.
• Implement robust security for backend systems and data handling.
• Collaborate with frontend developers, blockchain engineers, and product managers.
• Write clean, well-documented, thoroughly tested code and participate in code reviews.

Skills

Backend development

Go

Node.js

Python

Java

RESTful APIs

Distributed systems

Databases

Caching

Cloud platforms

Docker

Kubernetes

Tools

Docker

Kubernetes

AWS

GCP

Azure

Job description

Our client is seeking a highly skilled Senior Backend Engineer with a passion for blockchain technology to join their team in Pretoria . This role focuses on building and scaling the backend infrastructure that powers innovative blockchain applications and services. You will work on challenging problems related to distributed systems, API development, and data management within a complex crypto ecosystem. As a key member of the engineering department, you will contribute to architectural decisions and mentor junior engineers, helping to shape the future of their products.

Key Responsibilities

• Design, develop, and maintain scalable backend services and APIs for blockchain applications.
• Integrate backend systems with blockchain protocols, nodes, and wallets.
• Optimize application performance, database queries, and system architecture for high throughput and low latency.
• Implement robust security measures for backend systems and data handling.
• Collaborate with frontend developers, blockchain engineers, and product managers to deliver features.
• Write clean, well-documented, and thoroughly tested code, participating in code reviews.

Requirements

• 5+ years of professional experience in backend software development, with significant experience in blockchain-related projects.
• Strong proficiency in backend languages such as Go, Node.js, Python, or Java.
• Experience building and consuming RESTful APIs and microservices.
• Solid understanding of distributed systems, databases (SQL and NoSQL), and caching mechanisms.
• Familiarity with blockchain concepts, consensus mechanisms, and wallet integrations.
• Experience with cloud platforms (e.g., AWS, GCP, Azure) and containerization (e.g., Docker, Kubernetes).

Benefits

• Competitive salary and annual bonus structure.
• On-site work environment in a modern office facility in Pretoria.
• Comprehensive health, dental, and vision insurance coverage.
• Generous paid time off and company holidays.
• Opportunities for professional development and attending industry conferences.