HubSpot software engineer interviews cover algorithms, data structures, system design, and coding problems drawn from real interview rounds.
1. OA[CodeSignal] Cloud File Storage System
Category: Graph coding problem
Question Your task is to implement a simple in-memory cloud storage system that maps objects (files) to their metadata (name, size, etc.). You...
Input: Graph (nodes and edges)Output: Array
2. OA[CodeSignal] Design Banking System
Category: Graph coding problem
Question Design a banking system that supports account management, transactions, and various financial operations.
Input: Graph (nodes and edges)Output: Computed result
3. OA[CodeSignal] In-Memory Database
Category: Graph coding problem
Description Implement a simplified in-memory database that supports record manipulation with various operations. The system should handle basic...
Input: Graph (nodes and edges)Output: Array
4. Event Participant Role Validator
Category: Trie-based coding problem
Question A conference platform manages associations between events, attendees, and their roles. Each association is represented by three strings:...
Input: ListOutput: Array
5. Peak Stream Viewer Tracker
Category: String coding problem
Question A streaming analytics platform needs to track peak viewership for each user on each day. You are given a list of Session records. Each...
Output: Computed result
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