QA mock interview 2026: 20 Junior and Middle tester questions
A 2026 QA mock interview with 20 detailed answers, assessment criteria, red flags, a practical API exercise and a focused preparation plan.
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QA practice, interviews and API testing
Practical guides for junior and middle QA: interview questions, Postman, API checks, bug reports, boundaries, regression and access rights.
Postman and API testing at a QA interview: what to know and practise
A practical Postman checklist for QA interviews: methods, headers, body, auth, variables, status codes, response schema and common API bugs.
Read →Regression testing by risk: what to run when there is not enough time
How middle QA engineers choose a regression scope before release: risk, recent changes, money flows, access rights and defect history.
Read →Authentication vs authorization: how QA should test access rights
A practical guide to testing login, tokens, roles and object ownership in web and API products. With a visual checklist for access bugs.
Read →Boundary values and equivalence classes: how to apply them in practice
Two basic test design techniques on real API requests: how to cut down the number of values to try and where to look for the boundaries almost everything breaks on.
Read →How to write a bug report that gets accepted: structure, steps and common mistakes
A defect report taken apart piece by piece: the title, the steps to reproduce, the expected and the actual result. With examples of poor and good wording.
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