Selby Timothy
Senior Cobol Developer
Talent
JohannesburgMember since August 21, 2026
CobolMainframeJCLDB2VSAMIBM mainframeBusiness analysisRequirements analysisUnit testingIntegration testingCode reviewsTechnical documentationDebuggingSystem optimization
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CobolMainframeJCLDB2VSAM
About
Develop and maintain applications using the Cobol programming language. Work on systems that run on IBM mainframe computers. Combine programming skills with business analysis to develop and maintain Cobol-base applications.
Experience
Internship - Cobol Developer at Nedbank (2016-10 – 2017-06)
- Develop and maintain applications using the Cobol programming language.
- Work on systems that run on IBM mainframe computers.
- Combine programming skills with business analysis to develop and maintain Cobol-base applications.
- Focus on using Cobol to work with JCL and DB2 database on mainframe.
- Also focus on VSAM files.
- Work on developing Cobol applications.
- Analyse and design business systems which can include working with Cobol applications.
Cobol Developer at Nedbank (2017-07 – 2022-07)
- Write, design, and maintain Cobol applications, including development new developing new modules and programs.
- Analyse and fix issues in existing applications, often involving complex logic and large datasets.
- Work with business analysts and stakeholders to gather and interpret requirements to develop technical specifications.
- Perform unit and integration testing to ensure quality, performance, and functionality.
- Create and maintain technical documentation, including program logic, processes, and system configurations.
Senior Cobol Developer at Nedbank (2022-08 – 2025-09)
- Design, code, and implement new features and applications in Cobol.
- Maintain and enhance existing Cobol applications, and troubleshoot and resolves complex issues, bugs, and performance problems.
- Provide technical guidance and mentorship to junior developers, conduct code reviews, ensure adherence to engineering best practices and development standards.
- Work with business analysts and other stakeholders to analyse business requirements and translate them into technical specifications.
- Develop and execute comprehensive test cases, perform unit testing, and ensure the quality, reliability and stability of software through testing and debugging.
- Create and maintain technical documentation, including program logic, processes, and system configurations.
- Analyse and optimize existing code to improve performance.
- Participate in the migration of legacy system to newer frameworks.
Education
Grade 12 (MATRIC) – Matladi Project High School (2008)
IT Systems Development (CERTIFICATES) – PC Training and Business College (2010)
Diploma in Information Technology – PC Training and Business College (2012)
Skills
Senior Cobol Developer