Senior Java Payments Developer - Microservices & Cloud

PayTech Group; Johannesburg; On-site; ZAR 900,000 - 1,100,000; Full time

Job summary

PayTech Group in Johannesburg is seeking a hands-on Senior Java Developer to design, develop, and support enterprise-grade payment services in a high-volume environment. You will work with Java 8+ and Spring Boot, building microservices, leveraging Kafka for messaging, and container platforms such as Docker, Kubernetes, and OpenShift.

The on-site contract runs for 6–12 months with Agile delivery practices. Strong communication and collaboration with product, architecture and security teams are

Qualifications

• 5+ years of hands-on Java enterprise development experience.
• Experience with Java 8 and exposure to Java 21.
• Strong Spring Boot knowledge beyond annotations, including JPA, dependency injection and component scanning.
• 4+ years of experience developing or supporting enterprise services.
• Strong microservices architecture experience, including inter-service communication, APIs, and queues.
• Working knowledge of service discovery, Kafka, and queue design.
• Hands-on experience with event-driven architecture and service integration.
• 3+ years of experience with containerisation technologies; experience across Docker, Kubernetes and OpenShift is preferred.
• Practical exposure to cloud technologies.
• Hands-on SDLC experience across requirements, development, operations, and support.
• 3+ years of exposure to solution design.
• Experience with DevOps, CI/CD, automated testing, and production support.
• Experience working in high-volume, mission-critical transaction environments.

Responsibilities

• Deliver enterprise services across the full software development lifecycle, including requirements analysis, specification, development, testing, deployment, operational support, and continuous improvement.
• Design, build and enhance Java-based applications and Spring Boot microservices using sound engineering and object-oriented design practices.
• Develop and integrate synchronous and asynchronous services using APIs, service discovery, Kafka, and message queues.
• Contribute to solution design and translate business and technical requirements into scalable implementation approaches.
• Build cloud-ready, containerised services and support deployment across Docker, Kubernetes, and OpenShift environments.
• Apply event-driven architecture principles to high-volume transaction-processing solutions.
• Contribute to DevOps practices, CI/CD pipelines, automated testing, release readiness, and production support.
• Participate in capacity planning, technical debt management, JAD sessions, and technical design discussions.
• Collaborate with product, architecture, engineering, operations, risk, and other stakeholders to deliver secure and reliable solutions.
• Produce clear technical documentation, specifications and implementation notes while maintaining agreed coding and quality standards.

Skills

Java enterprise

Java 8

Spring Boot

Microservices

Kafka

Docker

Kubernetes

OpenShift

Cloud

DevOps

CI/CD

APIs

Event-driven

SDLC

Service discovery

Agile

Documentation

Education

Bachelor’s degree

Master’s preferred

Tools

Docker

Kubernetes

OpenShift

Job description

PayTech Group in Johannesburg is seeking a hands-on Senior Java Developer to design, develop, and support enterprise-grade payment services in a high-volume environment. You will work with Java 8+ and Spring Boot, building microservices, leveraging Kafka for messaging, and container platforms such as Docker, Kubernetes, and OpenShift.

The on-site contract runs for 6–12 months with Agile delivery practices. Strong communication and collaboration with product, architecture and security teams are