Staff Engineer Interview Questions

5,879 staff engineer interview questions shared by candidates

basic C questions, and they have very standard it seems delete linked list, add an element to bst, semaphore vs mutex etc., sometimes some domain specific or some protocol related. once I had 3 hr round with one of the team and I almost aced it but after I didn't hear anything. I felt interviewers are in much hurry and conclude just like that, sometimes I encountered narrow minded people.
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Staff Engineer

Interviewed at Qualcomm

3.8
Dec 11, 2025

basic C questions, and they have very standard it seems delete linked list, add an element to bst, semaphore vs mutex etc., sometimes some domain specific or some protocol related. once I had 3 hr round with one of the team and I almost aced it but after I didn't hear anything. I felt interviewers are in much hurry and conclude just like that, sometimes I encountered narrow minded people.

Design a stack class which will return the most occurring number in the stack. If 2 numbers have the same count of occurrence then return the number which is at the top of stack. For this I was required to write the class with 2 methods push() & pop().
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Staff Software Engineer

Interviewed at ServiceNow

4.1
Jun 30, 2022

Design a stack class which will return the most occurring number in the stack. If 2 numbers have the same count of occurrence then return the number which is at the top of stack. For this I was required to write the class with 2 methods push() & pop().

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