Senior Java Developer - Domain Specialist

DeARX Services Ltd; Johannesburg; On-site; USD 50,000 - 75,000; Full time

Job summary

A leading technology company is seeking a Senior Java Developer - Domain Specialist to spearhead the development of scalable applications in Johannesburg. This role involves collaborating with cross-functional teams, mentoring juniors, and ensuring adoption of best practices in a fast-paced Agile environment, leveraging modern technologies such as Java JEE, Spring Boot, and various API frameworks.

Qualifications

• 6+ years of Java development experience in complex enterprise environments.
• Strong knowledge of REST APIs and microservices.
• Experience in Agile software development environments.

Responsibilities

• Lead the development of enterprise-grade applications and APIs.
• Ensure code quality and manage technology assets.
• Mentor junior team members and improve engineering best practices.

Skills

Java

REST APIs

Microservices

Full-stack Development

Agile Development

DevOps

CI/CD Pipelines

Automated Testing

Tools

GitHub

IntelliJ

Jenkins

Maven

Docker

Job description

Job title : Senior Java Developer - Domain Specialist

Job Location : Gauteng, Johannesburg Deadline : August 02, 2025 Quick Recommended Links

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Role Overview

• As a Senior Java Developer, you will lead the design, development, and evolution of scalable, secure, and high-performing applications. You'll also contribute to long-term technology strategy and best practices while collaborating closely with business, DevOps, and architecture teams.
• Youll work with modern tech including Java JEE, Spring Boot, Angular / React, and robust API frameworks in a mission-critical environment that values code quality, technical ownership, and continuous improvement.

Key Responsibilities

• Lead the development and maintenance of enterprise-grade applications and APIs.
• Actively own and govern multiple technology assets, ensuring sustainability and performance.
• Contribute to sprint planning, daily stand-ups, retrospectives, and demos.
• Collaborate with analysts, testers, and architects to deliver end-to-end solutions.
• Ensure code quality using GitHub, SonarLint, SonarCloud, and modern DevOps practices.
• Raise technical risks and blockers early and participate in solutioning.
• Mentor junior team members and support engineering best practices.
• Support the architecture and evolution of technology roadmaps through a Centre of Excellence (COE) structure.
• Backend : Java JEE, Spring Boot
• Frontend : Angular / React
• API & Integration : RESTful APIs, DataPower
• Version Control : GitHub
• Code Quality : SonarLint, SonarCloud
• Tooling & CI / CD : IntelliJ, Jenkins, Maven, Docker
• Other : Basic AI integration exposure (advantageous)

What Youll Need

• 6+ years of Java development experience in complex enterprise environments.
• Strong knowledge of REST APIs, microservices, and full-stack development.
• Experience in Agile software development environments.
• Proven ability to deliver quality code on tight timelines.
• Exposure to large, regulated industries such as finance, insurance, or telecoms.
• Solid understanding of DevOps, CI / CD pipelines, and automated testing.

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Senior Java Developer • Johannesburg, ZA