Senior Java Developer

About the role

Sabenza IT & Recruitment is recruiting two Senior Java Developers for a live product that is already in production. The work fits into an existing system, where a change that looks fine in isolation can break something three modules away. You will sit in a development team, not as a lone contractor, and mentoring is part of the job: you follow the standards that already work and help other developers when their change does not. The two seats are based in Pretoria or Somerset West.

Key responsibilities

• Support the existing product and build new functionality and components on top of it.
• Work with business analysts to understand the domain and turn new requirements into something that can be built.
• Refactor and improve the code so the product stays maintainable.
• Evaluate and improve performance and high-availability behaviour, not only feature delivery.
• Write unit and integrated system tests that show the change works as intended.
• Do root-cause analysis on bugs, including debugging other people's code and fixing test data when that is what is broken.
• Build and deploy on an application server, then incorporate other developers' work and get the system running again after the merge.

Required profile

• A relevant tertiary qualification in Engineering or Computer Science, or matric plus the experience below.
• 8-10 years in a software development environment, of which at least 5 years as a senior developer in a team.
• Strong Java; Java 8 and above is required, Java 17 preferred.
• Java EE server-side development, JPA/Hibernate, and an application server or container; Karaf preferred.
• Maven, Git and Jenkins.
• SQL and a relational database; Apache Derby is relevant.
• ReactJS, Bootstrap, CSS3 and HTML5, plus REST or SOAP.
• A working knowledge of the SDLC and a commitment to production-quality software, with attention to detail and your own unit tests.