Intermediate Java Developer
Mindworx Consulting · Johannesburg, Gauteng
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We are looking for an Intermediate Java Developer (4–6 years' experience) for a 12-month hybrid contract. You will build and maintain core Java services on a large-scale telecoms billing and operations platform while driving enterprise integrations and hands-on client UAT/FAT sessions. Duties & Responsibilities
The Tech Stack Deep-Dive Must-Haves:
- Languages & Frameworks: Java (including J2EE, Spring)
- Databases: Deep SQL & query optimization (MSSQL, Oracle, MySQL, or PostgreSQL)
- DevOps, OS & Cloud: Linux, Bash scripting, Docker, and Kubernetes
- Messaging & Tools: RabbitMQ or ActiveMQ, Git, Scrum/Agile, Postman
Nice-to-Haves
- Integrations & PL/SQL: Apache Camel, Oracle PL/SQL, and Oracle APEX
- Domain Knowledge: Telecoms BSS/OSS background
- Web Basics: Basic HTML and CSS
Key Responsibilities
- Core Engineering: Build and optimize high-throughput Java microservices on a mission-critical enterprise billing platform.
- Performance Tuning: Write and refine complex SQL across diverse database engines to maintain peak system performance.
- Containerized Deployments: Manage containerized services on Linux using Docker and Kubernetes.
- Direct Facilitation: Integrate enterprise message queues and lead FAT/UAT sessions directly with customer teams.
Why Join Us?
- Impact at Scale: Work on a massive BSS modernization initiative delivered alongside an established international technology group.
- Flexible Hybrid Setup: Enjoy a balanced work model with 2 days a week in Centurion, with all equipment, tools, and licenses fully provided.
- Competitive Compensation: Market-related rates aligned with your experience on a dedicated, highly professional contract team