Software Development Engineer In Test Sdet Interview Questions

3,734 software development engineer in test sdet interview questions shared by candidates

Can't remember the actual questions now, but those were usual interview ones. No crazy trees or graphs, but mostly combinatorics-like, string/array manipulation, basic geometrical applications etc. No brain teasers, only technical.
Nov 16, 2014

Can't remember the actual questions now, but those were usual interview ones. No crazy trees or graphs, but mostly combinatorics-like, string/array manipulation, basic geometrical applications etc. No brain teasers, only technical.

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

Selenium - how to handle multiple windows, dynamic elements , multiple options in drop down, mouse actions Java - access specifier, Interface, abstract, maps hash map difference hash table Api - put post, Authorization and authentication, file upload in api Can we create objects for interface and abstract
Aug 28, 2023

Selenium - how to handle multiple windows, dynamic elements , multiple options in drop down, mouse actions Java - access specifier, Interface, abstract, maps hash map difference hash table Api - put post, Authorization and authentication, file upload in api Can we create objects for interface and abstract

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