Concurrency in Low-level Design Interviews w/ Staff Engineer
Concurrency questions trip up a lot of candidates because they don't know what to look for. In this video, I'll give you a framework that makes these problems predictable.
We start with a real bug (the kind that shows up constantly in interviews), then break down the three types of concurrency problems you'll actually encounter: correctness, coordination, and scarcity. Once you know these patterns, you'll know exactly what primitives to reach for.
Full written guide with code examples in Java, Python, Go, and more: https://www.hellointerview.com/learn/...
Timestamps
0:00 - Intro
1:11 - Motivating Example
3:23 - Correctness: Check-Then-Act & Read-Modify-Write
9:52 - Coordination: Blocking Queues & Backpressure
15:59 - Scarcity: Semaphores & Connection Pools
20:54 - Putting It All Together
About me: I'm Evan, former Meta Staff Engineer and co-founder of HelloInterview.com. Let's connect on linkedin! / evan-king-40072280