don't remember many of the difficult tech questions.
Principal Data Engineer Interview Questions
10,166 principal data engineer interview questions shared by candidates
The product is causing performance problem(gave example), how would you approach in solving it
Scenario based solutions; Performance tuning; Basic questions; like which index you create in which scenario and why? explain and counter questions like what will happen if we create X type of index instead of Y type.
very technical question considering some use cases assessment of your experience and knowledge
Why are you qualified?
How to find the middle node in linked list.
Why use an ArrayList over an array?
What is the impressive design lesson learn and how to avoid it happen again? What is the impressive design achievement?
In a given system they provide, design a component diagram to support the implementation of the system?
My case study was about a backup program for an enterprise customer. I was given the data and the fictitious companies information and had to create a quote and presentation for the client.
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