1p3a Experience · Oct 2025 · Los Angeles

Multi-Threaded Chat System

Interview Experience

The Challenge Design a thread-safe chat system for one computer. This system needs to let many clients talk through different channels at the same time. You must handle multiple threads doing t

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About This Question

This is a candidate experience report from a databricks interview for a swe role reported in 2025.

It covers the following topics: Hash Table, Strings, Chat System, Sql, Hash Table .

Difficulty rating: Easy