Interview questions

Design an ad recommendation ranking approach

Companies: Meta

Design an ad-selection system across objectives

Companies: TikTok

Design an Automated Home-Price Valuation Model

Companies: Amazon

Design an end-to-end spam detection system

Companies: Amazon

Annotation & Label Quality · ML System Design

Design an LLM agent with RAG and tools

Companies: Walmart Labs

Design an ML Model for Interview Recommendation Pipeline

Companies: Amazon

Design an Online Experiment

Companies: Waymo

Experiment Design (A/B Testing) · Metrics & KPIs

Design and critique an abuse-detection ML system

Companies: Google

Fairness & Bias · ML System Design

Design and diagnose a regression pipeline

Companies: Voleon

Feature Engineering · Regression & Statistical Modeling

Design and evaluate a RAG system

Companies: Amazon

Embeddings & Vector Search · Retrieval-Augmented Generation

Design and evaluate an ads ranking algorithm

Companies: Meta

CTR Prediction & Ads ML · Ranking Models

Design and evaluate an uplift model

Companies: DoorDash

Causal Inference · Experiment Design (A/B Testing)

Design and sample for credit default prediction

Companies: Boston Consulting Group

Feature Engineering · Sampling & Estimation

Design and validate a cost-sensitive classifier

Companies: Snowflake

Design and Validate Initial Restaurant Recommendation Model

Companies: Meta

Design anomaly detection and handle imbalanced logistic regression

General practice

Design bot detection and evaluate trade-offs

Companies: Meta

Design city home-price prediction system

Companies: Citadel

Feature Engineering · ML System Design

Design classification under missingness and imbalance

Companies: Cvs Health

Model Evaluation · Supervised Learning

Design Comprehensive Recommendation System for Spokeo Features

Companies: Spokeo

Design email to avoid Promotions without online tests

Companies: Tencent