Bot Detection | ML System Design Problem Breakdown

Опубликовано: 14 Май 2026
на канале: Hello Interview - SWE Interview Preparation
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00:00 Introduction
01:09 Delivery Framework
04:10 Problem Clarification and Objectives
15:22 High Level Design
21:18 Data and Features
29:37 Modeling
40:56 Inference and Evaluation
49:13 Deep Dive: Anomaly Detection
59:23 Wrap-up


A step-by-step breakdown of Bot Detection.

Stefan, a former Meta senior manager and current co-founder of Hello Interview, walks through the problem from the perspective of an interviewer.

Connect with me on LinkedIn:
Stefan:   / stefanmai  

Resources:
1. Read the written version of this problem: https://www.hellointerview.com/learn/...
2. Excalidraw from the video: https://link.excalidraw.com/l/56zGeHi...
3. Learn more about our Delivery Framework for ML System Design: https://www.hellointerview.com/learn/...
4. More about the differences in ML interviews: https://www.hellointerview.com/learn/...
5. Evaluations in ML system design interviews: https://www.hellointerview.com/learn/...
6. Vote for the question you want us to do next: https://www.hellointerview.com/learn/...


Preparing for an upcoming interview and want to practice with top FAANG interviewers like Stefan? Schedule a mock interview with a experienced ML interviewer: https://www.hellointerview.com/mock/s...

All the best with your upcoming interview!