Senior Mainframe Developer (ADABAS/Natural)

About

An established and highly respected organisation in Johannesburg is looking to appoint a Senior Mainframe Developer (ADABAS/Natural) to play a key role in maintaining and evolving their core systems environment.

This business supports large-scale, mission-critical operations and relies on stable, high-performing mainframe platforms to deliver essential services. As part of their ongoing investment in technology, they are seeking an experienced professional who can take ownership of complex development work, contribute to system enhancements, and provide technical leadership within the team.

You will be joining an environment where legacy systems are continuously refined and integrated with modern solutions, offering the opportunity to work on meaningful projects that directly impact business performance.

Responsibilities

• Take ownership of the development and enhancement of ADABAS/Natural-based applications.
• Analyse business needs and convert them into effective and sustainable technical solutions.
• Lead the delivery of development tasks across the full lifecycle, from design through to implementation.
• Ensure applications are efficient, reliable, and aligned to business requirements.
• Review and improve existing systems to enhance performance and stability.
• Provide mentorship and technical direction to less experienced team members.
• Perform code reviews and ensure adherence to coding standards and best practices.
• Investigate and resolve complex technical issues within the mainframe environment.
• Work closely with internal stakeholders to ensure alignment between IT and business objectives.
• Maintain accurate technical documentation and ensure compliance with internal processes.
• Support system integration and contribute to deployment activities.

Qualifications & Experience

Qualifications:

• Grade 12 (Matric)
• Degree in Computer Science, Information Systems, or a related discipline

Experience:

• Minimum 6 years’ experience in a mainframe development role
• Strong hands-on experience with Natural and ADABAS
• Exposure to both batch processing and online transaction systems
• Experience working on large, enterprise-level systems
• Demonstrated ability to guide and support junior developers
• Strong troubleshooting and analytical capabilities

Skills and competencies:

• Proficient in a range of end-user computing tools and business applications.
• Skilled in developing code and configuring software components in line with technical specifications.
• Strong understanding of IT systems, architecture principles, and enterprise configurations within a business context.
• Adept at diagnosing, analysing, and resolving complex system issues in an efficient and structured manner.
• Strong communicator with excellent attention to detail, effective prioritisation skills, and the ability to perform under pressure.
• Works well within collaborative team environments and contributes positively to shared objectives.
• Able to interpret functional requirements and translate them into clear, actionable technical designs and development tasks.

Note: If you have not had any response in two weeks, please consider the vacancy application unsuccessful. Your profile will be kept on our database for any other suitable roles / positions.