Indian IT services
Darwinbox Tech Test Engineer Interview: Rounds, Questions and Preparation
For Test Engineer roles at companies like Darwinbox Tech
What the job involves
A Test Engineer in Indian IT services works on manual and automation testing of software products, often as part of an Agile team. Day to day tasks include writing test cases, executing tests, logging defects, and verifying fixes before release. You may also maintain automation scripts and participate in sprint ceremonies.
Role and Technical Knowledge
- 1
What is the difference between verification and validation in software testing?
Verification checks if we are building the product right (reviews, inspections), while validation checks if we built the right product (actual testing). Give a simple example for each.
- 2
Explain the bug life cycle with the states a defect goes through.
Cover New, Assigned, Open, Fixed, Retest, Verified, Closed, and Reopened. Mention who moves the defect between states.
- 3
What are the key differences between smoke testing and sanity testing?
Smoke testing checks critical functionalities on a new build to decide if further testing is possible. Sanity testing checks a specific area after a minor fix. Mention they are both narrow and shallow versus deep and narrow.
- 4
How would you write a test case for a login page? List the test scenarios.
Include positive cases (valid credentials), negative cases (invalid password, blank fields), boundary cases (max length), and security cases (SQL injection). Show structured thinking.
Practical Scenarios
- 5
You find a bug that the developer says is not reproducible. How do you handle it?
Explain that you would provide detailed steps, screenshots, video, logs, environment details, and try to reproduce on a different build. Emphasise collaboration and evidence.
- 6
How do you decide which test cases to automate and which to keep manual?
Automate repetitive, stable, high-risk, and regression tests. Keep exploratory, usability, and frequently changing tests manual. Mention ROI and maintenance effort.
- 7
You have to test a feature with a tight deadline. How do you prioritise your testing?
Prioritise based on risk, business impact, and critical functionality. Use techniques like risk-based testing and communicate trade-offs to the lead.
- 8
A defect you logged was rejected as 'Not a bug' by the developer. What do you do next?
Discuss with the developer, refer to requirements or design documents, and if needed escalate to the test lead or business analyst. Stay professional and data-driven.
Automation and Tools
- 9
What are the advantages of using Selenium for automation testing?
Mention open source, supports multiple browsers and languages, large community, and integration with frameworks like TestNG. Also note limitations like no built-in reporting.
- 10
How do you handle dynamic elements in Selenium?
Use XPath or CSS selectors with contains, starts-with, or relative locators. Mention waits like implicit, explicit, and fluent waits.
- 11
What is the difference between a stub and a mock in API testing?
A stub provides canned responses, while a mock also verifies interactions. In API testing, tools like Postman or RestAssured help simulate responses.
- 12
Write a simple SQL query to find duplicate records in a table.
Use GROUP BY with HAVING COUNT(*) > 1. Show you understand SELECT, WHERE, and aggregate functions.
Behavioural and HR
- 13
Tell me about a time you found a critical bug under time pressure. How did you handle it?
Use STAR method: describe the situation, the bug, your action to report and verify, and the positive outcome. Highlight communication and prioritisation.
- 14
Why do you want to work as a Test Engineer in an IT services company?
Show interest in quality assurance, learning automation, and working with diverse clients. Mention that services exposure builds strong fundamentals.
- 15
How do you handle disagreement with a senior developer about a defect severity?
Stay respectful, present evidence from requirements, and involve the test lead if needed. Emphasise that the goal is product quality, not winning an argument.
- 16
Where do you see yourself in three years as a Test Engineer?
Show a path from manual testing to automation and possibly test lead roles. Mention learning new tools and contributing to better test processes.
Coding round
Test Engineer interviews usually include a coding round. Practise planning the solution out loud, then review code the AI writes from your plan, in Python, Java, C++, C or JavaScript.
Ready to try it for real?
Take a timed test or talk through a mock interview for this role, then see your scores.
This is practice material for Test Engineer roles, written with AI. It is not a list of questions Darwinbox Tech or any other company has asked.