Reddit Question · Dec 2025

How I Prepared for Google Interview

Backend OA Mid Easy
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561 upvotes 58 replies

Question Details

After completing Google’s interview and getting an offer as a Software Engineer in 2025, I decided to share my preparation journey and advice. This is my personal experience. Your case may differ by r

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About This Question

This is a reported interview question from a google interview for a backend role (mid level) during the oa round reported in 2025.

It covers the following topics: Hash Table, Arrays, Graph, Greedy, Strings, Bit Manipulation, Binary Tree, Sliding Window, Union Find, Linked List, Sorting, System Design, Dynamic Programming, Backtracking, Heap, Queue, Recursion, Two Pointers .

Difficulty rating: Easy

Topics

Hash Table Arrays Graph Greedy Strings Bit Manipulation Binary Tree Sliding Window Union Find Linked List Sorting System Design Dynamic Programming Backtracking Heap Queue Recursion Two Pointers

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