Software Engineer Principal Interview Questions

Principal Software Engineer

Interviewed at Oracle

3.5★

Nov 12, 2019

Remove duplicates from a sorted list.

Principal Software Engineer

Interviewed at Oracle

3.5★

Jul 26, 2017

describe something you have worked on architecturally

Principal Software Engineer

Interviewed at Oracle

3.5★

Aug 8, 2016

SOA Related questions

Principal Software Engineer

Interviewed at Lowe's Home Improvement

3.5★

Jul 14, 2023

Provide definitions for the following 20 tech acronyms

Principal Software Engineer

Interviewed at Oracle

3.5★

Nov 20, 2023

The interview encompassed questions on Data Structures & Algorithms, System Programming, OS Fundamentals, and C/C++.

Principal Software Engineer

Interviewed at Oracle

3.5★

Mar 24, 2024

2 different leetcode questions related to backtracking. Another one is count number of island. The questions are exactly from leetcode so you needs to make sure you are extremely familiar with leetcode questions.

Principal Software Developer OCI Operations Automation

Interviewed at Oracle

3.5★

Apr 1, 2024

Typical technical and behavioral questions

Principal Software Engineer/Architect/Technical Lead

Interviewed at Oracle

3.5★

Nov 14, 2025

Final, finally Bean Scopes in spring Old Java Design patterns: Proxy, Adapter, Facade How would you implement a singleton? Gotcha Snippets ( == / equals / instanceof and other quirky, autoboxing and unboxing gotcha questions) What would you say if your manager turns your proposal down, says simply "this is not how we used to do things", then refuses to elaborate.

Principal Software Engineer

Interviewed at Oracle

3.5★

Dec 18, 2025

Word search problem on LeetCode

Principal Software Developer

Interviewed at Oracle

3.5★

Jul 22, 2024

Algorithms similar to those on Leet Code, Easy to moderate.