Salary: £35,000 - 60,000 per year Requirements: We are looking for a Mainframe Tester with experience in testing and automating mainframe applications. We require experience in Mainframe Testing. We require strong knowledge of COBOL, JCL, and DB2. We require an understanding of SDLC/STLC and testing methodologies. We value strong analytical and communication skills. Responsibilities: We develop and maintain automated test scripts using COBOL, JCL, and DB2. We design, execute, and automate test cases for functionality, performance, and security validation. We collaborate with developers and business analysts to understand requirements and identify test scenarios. We perform functional, regression, and integration testing. We track and report defects and support issue resolution. Technologies: COBOL Support Security More: We are looking for a Mainframe Tester with experience in testing and automating mainframe applications. In this role, we work closely with developers and business analysts to ensure high-quality mainframe solutions through thorough testing and defect management. We value a professional, collaborative approach and seek someone who brings strong technical and analytical capabilities to our team. last updated 20 week of 2026