Interview questions
QA Engineer interview questions
53 realistic questions across technical, behavioural, HR, situational and role-specific categories. Questions only — join free to unlock model answers, quizzes and AI mock interviews.
Showing 25 of 53 questions
Can you describe a recent situation where you chose between using inheritance or composition in your test automation code, and explain your reasoning?
Technical
Beginner
Q1
How would you design and test a REST API endpoint intended to handle thousands of requests per second without performance degradation?
Technical
Intermediate
Q2
Given a slow-running database query impacting your test environment, how would you identify the bottleneck and implement a fix?
Technical
Intermediate
Q3
How would you ensure a web page remains responsive and fast during sudden spikes in user traffic while testing its performance?
Technical
Advanced
Q4
What steps would you take to test and verify that an API is properly secured against unauthorized access?
Technical
Advanced
Q5
How do you determine which parts of a feature to cover with unit tests versus integration tests during your testing process?
Technical
Intermediate
Q6
Can you describe a scenario where you identified and prevented a race condition during testing of a distributed system?
Technical
Advanced
Q7
Walk me through the steps you would take to deploy a new version of a service without causing downtime for users.
Technical
Advanced
Q8
What would you do if you had to deal with Software Testing Fundamentals at short notice?
Role Specific
Beginner
Q41
Tell me how you would approach Test Automation Basics.
Role Specific
Beginner
Q42
How would you handle Programming for QA Engineers on a typical day?
Role Specific
Intermediate
Q43
What would you do if you had to deal with API Testing and Validation at short notice?
Role Specific
Intermediate
Q44
Tell me how you would approach Performance and Load Testing.
Role Specific
Intermediate
Q45
How have you implemented Continuous Integration and Continuous Deployment (CI/CD) pipelines to improve testing and release processes in your projects?
Technical
Intermediate
Q46
What would you do if you had to deal with Advanced Test Automation Frameworks at short notice?
Role Specific
Advanced
Q47
Tell me how you would approach Security Testing Fundamentals.
Role Specific
Advanced
Q48
Give an example of how you have applied Test Metrics and Reporting in your work.
Professional Specific
Advanced
Q49
What would you do if you had to deal with Testing in Agile and DevOps Environments at short notice?
Role Specific
Expert
Q50
How would you coordinate your testing activities to align with both the Software Development Life Cycle (SDLC) and Testing Life Cycle (STLC) for a new feature?
Technical
Beginner
Q53
How would you handle Bug Life Cycle and Defect Management on a typical day?
Role Specific
Beginner
Q54
A colleague asks for help applying Test Design Techniques to improve their test cases. How would you assist them?
Technical
Intermediate
Q55
Can you describe a project where performance testing and related tools influenced your testing strategy or outcomes?
Technical
Intermediate
Q56
How would you design and automate API tests to ensure robust validation of functionality and reliability?
Technical
Intermediate
Q57
How have you incorporated Continuous Integration and Continuous Testing practices to improve test coverage and speed in your projects?
Technical
Advanced
Q58
A colleague wants to learn the basics of security testing. How would you explain key concepts and help them get started?
Technical
Advanced
Q59
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