Ampstek is hiring: Mainframe Tester (Contract to Hire) in Chicago

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Location: Pittsburgh, PA (5 Days Work from Office) (Locals Preferred)

Job Type: Contract to Hire

Qualifications

• 8+ years of software testing experience, including deep hands?on work in both manual and automated frameworks, Playwright, Cucumber.
• Proven track record building end?to?end test strategies for complex, front?to?back workflows.
• Hands?on experience with legacy mainframe systems: understanding how the mainframe processes data, designing and validating data?migration flows from mainframe to distributed tiers, and testing those migrations in the live mainframe environment.
• Strong influencer: comfortable partnering with Product, DevOps, Engineering and Operations to embed quality throughout the delivery lifecycle.
• Skilled at balancing PODs individual priorities while maintaining a coherent, end?to?end test strategy across both distributed and mainframe platforms. Strategic & Analytical Mindset.
• Experience defining test roadmaps, metrics/KPIs (e.g., defect leakage, test coverage, automation percentage) and continuously improving them.
• Skilled at risk?based testing: prioritizing what to test when timelines are tight and leveraging data to drive coverage decisions.
• Process & Tooling Savvy.
• Hands?on with CI/CD pipelines (Jenkins, GitLab CI, DevOps) to build automation into nightly/regression suites.
• Expert in Playwright for UI automation and Insomnia for API testing.
• Familiarity with modern test management platforms TestRail, qTest and defect?tracking tools JIRA.
• Exceptional verbal and written communicator able to translate technical test results into clear, actionable insights for both technical and non?technical audiences.
• Proactive in surfacing risks early and driving cross?team alignment on scope, timelines and acceptance criteria.

Required Skills:

Thanks

Contact

Rakesh Pathak | Senior Technical Recruiter

Phone: 609-360-2642

Rakesh.pathak@ampstek.com | www.ampstek.com

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