Senior Backend Engineer: Node.js, Java & Data Pipelines

IQbusiness South Africa; Stellenbosch; On-site; ZAR 900,000 - 1,300,000; Full time

Job summary

IQbusiness South Africa is seeking an experienced Backend Developer to help build scalable, high-performance banking and payment platforms. The role focuses on backend engineering, data-driven solutions, and modern technology within a collaborative fintech environment.

Requirements include 5+ years of backend experience, deep Node.js and Java skills, data engineering and ETL expertise, and strong SQL/NoSQL knowledge (PostgreSQL, MongoDB).

Qualifications

• 5+ years of backend development experience.
• Strong expertise in Node.js and Java.
• Experience with data engineering, ETL, and DB optimization.
• Knowledge of SQL and NoSQL databases (PostgreSQL, MongoDB).
• Experience building and consuming RESTful APIs and GraphQL.
• Familiarity with Kafka, RabbitMQ, or similar messaging platforms.
• Knowledge of CI/CD pipelines and DevOps practices.

Responsibilities

• Develop and maintain backend services using Node.js and Java.
• Design and implement data engineering and ETL solutions.
• Build scalable, secure systems aligned with banking standards.
• Collaborate with cross-functional teams to integrate backend services and APIs.
• Participate in architecture discussions, code reviews, and continuous improvement.
• Troubleshoot and optimize application performance and scalability.

Skills

Backend development

Data-driven mindset

Collaboration

Tools

Node.js

Java

Kafka

RabbitMQ

REST APIs

GraphQL

PostgreSQL

MongoDB

CI/CD

DevOps

ETL

Job description

IQbusiness South Africa is seeking an experienced Backend Developer to help build scalable, high-performance banking and payment platforms. The role focuses on backend engineering, data-driven solutions, and modern technology within a collaborative fintech environment.

Requirements include 5+ years of backend experience, deep Node.js and Java skills, data engineering and ETL expertise, and strong SQL/NoSQL knowledge (PostgreSQL, MongoDB).