Senior Java Developer at DeARX Services (Pty) Ltd

Role Overview

• We are seeking a Senior Java Developer to join a large-scale digital channels environment, supporting high-volume, mission-critical enterprise systems.
• This role is ideal for a highly experienced engineer with deep expertise in Core Java, JEE/Jakarta EE, and IBM enterprise platforms, who can operate independently and contribute at a senior or lead level.
• You will be involved in designing, developing, integrating, and supporting complex transactional systems within a mature enterprise SDLC environment.

Key Responsibilities

• Design, develop, and maintain enterprise-grade Java applications
• Work on high-volume, transactional digital channel systems
• Implement enterprise integration and messaging solutions
• Collaborate with architects, integration teams, and business stakeholders
• Perform performance tuning, troubleshooting, and production support
• Ensure solutions align with enterprise standards, security, and best practices
• Contribute to system stability, scalability, and continuous improvement

Required Technical Skills & Experience

• Strong Core Java experience (Senior / Expert level)
• JEE / Jakarta EE, including:
• EJB
• JMS
• JPA
• Servlets
• Enterprise integration and messaging experience
• IBM technology stack, such as:
• IBM WebSphere Application Server
• IBM MQ
• IBM Integration Bus (IIB) / App Connect Enterprise (ACE)
• IBM ODM (or similar IBM enterprise products)
• Experience working in digital channels or large transactional enterprise systems

Strong understanding of:

• Software Development Life Cycle (SDLC)
• Performance optimisation and tuning
• Production support in complex environments

Key Competencies

• Ability to work independently at senior or lead level
• Strong problem-solving and analytical skills
• Excellent communication and stakeholder engagement
• Proven experience in stable, high-availability enterprise systems