Senior Java Engineer - Spring, Kafka & Microservices

Upstream; Johannesburg; On-site; ZAR 850,000 - 1,300,000; Full time

Job summary

Upstream in Johannesburg is seeking a Senior Software Engineer to join our Software Development team. You will contribute to Java applications across the full development lifecycle and collaborate with a skilled team on mission-critical systems.

The ideal candidate brings 5+ years in Java, Spring, and modern architectures, hands-on experience with RabbitMQ/Kafka, HTTP services, SQL, and CI/CD. You will mentor junior developers and drive quality through design reviews and releases.

Qualifications

• 5+ years of full-time professional experience in designing and developing applications using the Java ecosystem.
• Solid background in Object Oriented Analysis and Design.
• Experience with popular Java frameworks and technologies such as Spring Framework, JPA/Hibernate.
• Experience with asynchronous messaging technologies (e.g. RabbitMQ, Kafka).
• Experience designing and developing HTTP web services.
• Excellent knowledge of SQL and RDBMS concepts.
• Working knowledge of Maven, Git and Continuous Delivery principles.

Responsibilities

• Write well-designed, testable, efficient software modules.
• Ensure designs are in compliance with specifications and that specifications cover all needed aspects of the implementation.
• Prepare and produce releases of software components.
• Provide support for production systems.
• Create/ review design documentation and provide feedback on test plans.
• Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review.
• Support and coach junior developers.

Skills

Java

Spring

Hibernate

HTTP web services

SQL

Maven

Git

CD/CI

Education

BSc/MSc in Computer Science or Software Engineering

Tools

RabbitMQ

Kafka

Job description

Upstream in Johannesburg is seeking a Senior Software Engineer to join our Software Development team. You will contribute to Java applications across the full development lifecycle and collaborate with a skilled team on mission-critical systems.

The ideal candidate brings 5+ years in Java, Spring, and modern architectures, hands-on experience with RabbitMQ/Kafka, HTTP services, SQL, and CI/CD. You will mentor junior developers and drive quality through design reviews and releases.