LM
Luis Minvielle
The 8 Best Code Testing Tools
over 2 years ago
Mainframe Tester
The Ascent Services Groupdion
Manchester, UK
about 2 months ago
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Role details
Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Job source
Tech stack
Automation of Tests
COBOL (Programming Language)
IBM DB2
Job Control Language (JCL)
Mainframes
Systems Development Life Cycle
Strategies of Testing
Integration Tests
Bug Reporting
Job description
We are looking for a Mainframe Tester with experience in testing and automating mainframe applications., * Develop and maintain automated test scripts using COBOL, JCL, and DB2.
- Design, execute, and automate test cases for functionality, performance, and security validation.
- Collaborate with developers and business analysts to understand requirements and identify test scenarios.
- Perform functional, regression, and integration testing.
- Track and report defects and support issue resolution.
Requirements
- Experience in Mainframe Testing.
- Strong knowledge of COBOL, JCL, and DB2.
- Understanding of SDLC/STLC and testing methodologies.
- Good analytical and communication skills.
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Prepare application
- Draft this with your agent
- Open in Claude
- Open in ChatGPT
Good distractions
Talks and stories from around this role — technically off-topic, practically not.
Moments
Explore playlists4:40 min
Analyzing COBOL mainframe migration challenges with AI
Michael Friedrich · World Congress 2026 Europe
3:48 min
Modernizing massive legacy mainframe and IBM i codebases
Maximilian Jesch · World Congress 2026 Europe
5:19 min
Identifying vulnerabilities and automating Jira bug reports
Sergio Freire · Europe 2026 Virtual
6:35 min
Modernizing legacy COBOL mainframe systems using AI agents
Chris Heilmann +2 · LIVE
2:18 min
Streamlining feature requests and bug reports with templates
Dennis Doomen · World Congress 2025
8:22 min
Navigating legacy systems and unconventional software testing practices
Philipp-Alexander Blum · LIVE
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