Platform Engineer Interview Questions

1,795 platform engineer interview questions shared by candidates

They asked me two Leetcode-style questions that I cannot disclose. However, I would recommend preparing for the interview by studying Leetcode medium level problems on common topics like DP, graphs, strings, and OOP. Also practice communicating your thoughts and approach to the problem.
Feb 25, 2025

They asked me two Leetcode-style questions that I cannot disclose. However, I would recommend preparing for the interview by studying Leetcode medium level problems on common topics like DP, graphs, strings, and OOP. Also practice communicating your thoughts and approach to the problem.

1. Reverse an int array (phone screening problem) 2. Implement the get method of a Singly Linked List, implement the add method of singly linked list. Implement the add method of a double ended singly linked list. 3. Whats the difference between a sql and no sql database? Give examples 4. Implement a LRU Cache (Can't use the java linked hash map)
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Software Engineer - Platform/Backend

Interviewed at BILL

3.3
Oct 13, 2016

1. Reverse an int array (phone screening problem) 2. Implement the get method of a Singly Linked List, implement the add method of singly linked list. Implement the add method of a double ended singly linked list. 3. Whats the difference between a sql and no sql database? Give examples 4. Implement a LRU Cache (Can't use the java linked hash map)

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