Mastering HubSpot's Software Engineer Test: Conquer Data Structures Challenges

hubspot | Software Engineer | Interview Experience

Interview Date: Not specified
Result: Not specified
Difficulty: Not specified

Interview Process

The interview consisted of a 90-minute online assessment on the CodeSignal platform. There were a total of 4 levels, each worth 250 points, with a requirement of 480 points to pass. The questions were designed to test proficiency under tight time constraints.

Technical Questions

  1. Cloud Storage Problem (Data Structures)
    • Core idea: Trie
    • Level 1: Initialization, storage, deletion, search (return file size)
    • Level 2: Given a file prefix and a number n, return the top n files with the same prefix based on size
    • Level 3: Each file belongs to a user; implement a function to merge users (files belonging to the same user should be updated after the merge)
    • Level 4: Not attempted

Tips & Insights

The questions were not particularly difficult, but the time limit made it challenging to complete all four within the given timeframe. Focus on practicing under timed conditions to improve proficiency.