QA / Test Engineer interview questions & mock practice
A QA / Test Engineer interview in 2026 runs across 4 rounds — testing fundamentals, automation round, sql & api testing, scenario / behavioural. Below are the most-asked QA / Test Engineer interview questions and a focused prep plan. Rehearse every answer with OnJob's free AI mock interview and get instant, specific feedback before the real one.
The QA / Test Engineer interview process
Manual and automation testing, Selenium, test design and SDLC — the QA interview for product companies, services firms and test-automation teams.
Testing fundamentals
Test types, SDLC/STLC, test-case design and bug lifecycle.
Automation round
Selenium/Cypress, frameworks and writing test scripts.
SQL & API testing
Database validation and testing REST APIs with Postman.
Scenario / behavioural
How you'd test a feature and work with developers.
Most-asked QA / Test Engineer interview questions
12 of the questions QA / Test Engineer candidates are asked most often in India. Practise answering each one out loud in your AI mock interview.
- 1. What is the difference between verification and validation?
- 2. Explain the difference between SDLC and STLC.
- 3. What is the difference between smoke, sanity and regression testing?
- 4. Walk me through the bug life cycle from discovery to closure.
- 5. What is the difference between severity and priority? Give an example of high severity / low priority.
- 6. How would you write test cases for a login page?
- 7. What is the difference between functional and non-functional testing?
- 8. Explain the difference between black-box and white-box testing.
- 9. What is the Page Object Model in Selenium and why use it?
- 10. How do you handle dynamic elements and waits in Selenium?
- 11. How would you test a REST API, and what do you check?
- 12. What is the difference between test plan and test strategy?
How to prepare for your QA / Test Engineer interview
Have testing fundamentals airtight: STLC, test-case design techniques (boundary value, equivalence partitioning) and the bug life cycle.
Know the severity-vs-priority distinction with concrete examples — it's asked in almost every QA interview.
Be hands-on with Selenium/Cypress: locators, waits, the Page Object Model and a basic TestNG/JUnit framework.
Practice writing thorough test cases (positive, negative, edge) for a given feature out loud.
Brush up on SQL for backend validation and API testing with Postman — manual-only QA roles are shrinking.
Practise other roles
- Software Engineer
- Frontend Developer
- Backend Developer
- Full Stack Developer
- Data Analyst
- Data Scientist
- Product Manager
- DevOps Engineer
- Java Developer
- Python Developer
- UI/UX Designer
- Sales / Business Development
- Digital Marketing
- HR / Recruiter
- Accountant
- Customer Support
- Data Engineer
- Machine Learning Engineer
- Android Developer
- iOS Developer
- Business Analyst
- Project Manager
- Scrum Master
- SQL Developer
- React Developer
- Node.js Developer
- Cloud Engineer (AWS)
- Cybersecurity Analyst
- Network Engineer
- Database Administrator
- SEO Specialist
- Content Writer
- Graphic Designer
- Sales Executive
- Business Development Manager
- Operations Manager
- Financial Analyst
- Chartered Accountant
- Customer Success Manager
- Technical Support Engineer
- Civil Engineer
Interview prep guides
QA / Test Engineer interview — FAQs
What questions are asked in a QA / Test Engineer interview?
Common QA / Test Engineer interview questions include: What is the difference between verification and validation? Explain the difference between SDLC and STLC. What is the difference between smoke, sanity and regression testing? Walk me through the bug life cycle from discovery to closure. Interviews usually run across 4 rounds — Testing fundamentals, Automation round, SQL & API testing, Scenario / behavioural. Practice all of them with instant AI feedback using OnJob's free mock interview.
How many rounds are in a QA / Test Engineer interview?
A typical QA / Test Engineer interview has 4 rounds: Testing fundamentals (Test types, SDLC/STLC, test-case design and bug lifecycle.); Automation round (Selenium/Cypress, frameworks and writing test scripts.); SQL & API testing (Database validation and testing REST APIs with Postman.); Scenario / behavioural (How you'd test a feature and work with developers.).
How do I prepare for a QA / Test Engineer interview?
To prepare for a QA / Test Engineer interview: Have testing fundamentals airtight: STLC, test-case design techniques (boundary value, equivalence partitioning) and the bug life cycle. Know the severity-vs-priority distinction with concrete examples — it's asked in almost every QA interview. Be hands-on with Selenium/Cypress: locators, waits, the Page Object Model and a basic TestNG/JUnit framework. Then run a full AI mock interview on OnJob to rehearse out loud and get instant, specific feedback before the real thing.
What skills do I need for a QA / Test Engineer role?
Core QA / Test Engineer skills tested in interviews include Manual Testing, Selenium, Test Automation, API Testing, SQL, TestNG, JIRA. OnJob shows you exactly which of these skills stand between you and a 100% match on every live QA / Test Engineer job.
Is OnJob's QA / Test Engineer mock interview free?
Yes. OnJob's AI mock interview is free to start (₹0) and gives you instant feedback on your answers. Pro (₹99/month) adds unlimited interview-prep AI alongside recruiter tracking and unlimited applications.
Ace your QA / Test Engineer interview
Rehearse every QA / Test Engineer question out loud with OnJob's AI mock interview and get instant, specific feedback. Then apply to AI-matched jobs in one click — free to start.
Everything about QA / Test Engineer on OnJob
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