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Principal Engineer Interview Questions
4,340 principal engineer interview questions shared by candidates
Problem on finding a palindrome on Linked List.
Tree problem (lifted from geeksforgeeks.com - a 3.5 medium level problem). Interviewers didn't even bother to have a look at the resume.
Design makemytrip
How ussd works (since I had past experience on same)
See my description of the interview process. The question was basically, "Will you debase yourself enough to jump through our hoops, to have the privilege of a hiring manager actually seeing your resume."
We have an extensive collection of digitized archive records. Sometimes the OCR technologies that digitize these physical records make mistakes and produce some sections of garbled text. If you were to train an LLM on these records, how would you handle such OCR errors affecting training and inference?
Describe how to implement, basically, Java's LinkedHashMap.
behavioural questions (tell about last job, why Fidelity? what you like dislike about past job, describe your day) java questions thrown in (singleton, interfaces, abstract) java/javascript questions (design patterns, why microservices, abstract classes, === vs == in javascript)
Tell us a time you solved a challenging technical problem
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