Senior Product Engineer Interview Questions

510 senior product engineer interview questions shared by candidates

What are your experiences and the challenges you faced? What is the difference between a String var = "ABC" and String var = String("ABC")? Why are you leaving your current position? Talk about design principles and what you know about them
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Product Engineer Senior

Interviewed at Point & Pay

3.7
Apr 14, 2022

What are your experiences and the challenges you faced? What is the difference between a String var = "ABC" and String var = String("ABC")? Why are you leaving your current position? Talk about design principles and what you know about them

You’ll be given a silly question to debug something in their codebase. But you need to tell another engineer sharing their screen what to do, so it just takes ages. On top of that the problem you’ll need to debug will something really silly like: an interface that is implemented by dozens of classes with different overrides. There is a reason why React no longer uses classes but functions and why most front end applications don’t rely OOP. It’s because it is because debugging them is tedious and absurd. You should not structure a FE application the same way you do BE service written in Java.
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Senior Product Engineer

Interviewed at Ashby

4.6
Nov 27, 2025

You’ll be given a silly question to debug something in their codebase. But you need to tell another engineer sharing their screen what to do, so it just takes ages. On top of that the problem you’ll need to debug will something really silly like: an interface that is implemented by dozens of classes with different overrides. There is a reason why React no longer uses classes but functions and why most front end applications don’t rely OOP. It’s because it is because debugging them is tedious and absurd. You should not structure a FE application the same way you do BE service written in Java.

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