Software Development Engineer In Test Sdet Interview Questions

3,753 software development engineer in test sdet interview questions shared by candidates

Hiring Manager round: Asked about past experiences and basically you'll be tested to see if you're a good fit for the tech culture. Was also asked to list down in a doc the test strategy/scenarios for a Book now pay later module. This round is sort of Domain+HR.
Aug 27, 2022

Hiring Manager round: Asked about past experiences and basically you'll be tested to see if you're a good fit for the tech culture. Was also asked to list down in a doc the test strategy/scenarios for a Book now pay later module. This round is sort of Domain+HR.

Explain a scenario where multiple ads appear one-by-one on a website. How would you automate testing for this sequence, when the number of ads is unknown and each ad stays visible for 5 seconds�?If there are three textboxes with different IDs, but input only goes to one during automation, what could be the cause of the issue�?Can you describe how you would handle a situation where an API response does not match expected data? What troubleshooting steps would you take�?What types of bugs have you encountered during API testing, and how did you address them (e.g., missing functionality, poor error handling, performance issues)�?How do you perform API testing for negative cases and error scenarios�?Describe a challenge you faced during API test automation and how you resolved it�. Coding questions on array
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Software Development Engineer In Test (SDET)

Interviewed at NatWest Group

4
Oct 1, 2025

Explain a scenario where multiple ads appear one-by-one on a website. How would you automate testing for this sequence, when the number of ads is unknown and each ad stays visible for 5 seconds�?If there are three textboxes with different IDs, but input only goes to one during automation, what could be the cause of the issue�?Can you describe how you would handle a situation where an API response does not match expected data? What troubleshooting steps would you take�?What types of bugs have you encountered during API testing, and how did you address them (e.g., missing functionality, poor error handling, performance issues)�?How do you perform API testing for negative cases and error scenarios�?Describe a challenge you faced during API test automation and how you resolved it�. Coding questions on array

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