All questions fell along the lines of Amazon's 13 Principles. All were "Target Selection Interview" (TSI) style.
Principal Engineer Interview Questions
4,340 principal engineer interview questions shared by candidates
Minimum window substring straight out of leetcode
What are the issues when talking over I2C.
What can you do for us (when I had little knowledge of what this department actually does)?
What would you recommend to grow our business in the current customer community?
Intersection of 2 number arrays.
He said, what if elements have duplicate, I said no problem duplicate will be removed. He gave another example of arrays. var1[] = {1, 2, 2} var2[]= {1,2,2,1}
Interrogation style interview. Most question had multiple parts.
You have 3 input streaming channels, 3mbps each. You need to deliver all of this (9mbps streaming data) via single output channel with 3mbps max bandwidth. You don't know the nature of the data, compression doesn't work, nobody you can ask about other requirements - you are the owner of the solution. The interviewer didn't provide any more clarification.
Implement a phone book that works with minimal memory and allows fast lookup.
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