Senior Principal Engineer Interview Questions

300 senior principal engineer interview questions shared by candidates

1. Write a function that checks how many bits are set to 1 in a integer 2. Received an electric design and requested to build an API for the driver 3. C questions (compilers, keywords, bit operations) 4. Describe a risk you took in a process of a project 5. General process questions regarding software engineering
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Senior Principal Software Engineer

Interviewed at Medtronic

3.7
Jul 17, 2023

1. Write a function that checks how many bits are set to 1 in a integer 2. Received an electric design and requested to build an API for the driver 3. C questions (compilers, keywords, bit operations) 4. Describe a risk you took in a process of a project 5. General process questions regarding software engineering

- tree operations (data structures) - system design for authentication service (whiteboard) - system design for scooter lending company (whiteboard) - low-level design for elevator problem (whiteboard) You shouldn't have a problem if you prepare from well known sites like geeksforgeeks. The problems you get may be different but it's important to take the right approach.
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Senior Principal Software Engineer

Interviewed at Oracle

3.5
Mar 28, 2026

- tree operations (data structures) - system design for authentication service (whiteboard) - system design for scooter lending company (whiteboard) - low-level design for elevator problem (whiteboard) You shouldn't have a problem if you prepare from well known sites like geeksforgeeks. The problems you get may be different but it's important to take the right approach.

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