Mainframe Tester

Job Title : Mainframe Tester

Work Location : Pittsburgh, PA

Duration : Longterm

Job Description

8+ years of software testing experience, including deep hands-on work in both manual and automated frameworks such as Playwright and Cucumber.

Proven track record in 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.

Collaboration

Strong influencer : comfortable partnering with Product, DevOps, Engineering, and Operations teams 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 such as TestRail, qTest, and defect-tracking tools like JIRA.

Communication & Stakeholder Management

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.