Design an item category prediction system
Company: Walmart Labs
Role: Machine Learning Engineer
Category: ML System Design
Difficulty: easy
Interview Round: Onsite
Quick Answer: This question evaluates a candidate's ability to design end-to-end machine learning systems for multi-class or hierarchical item categorization, encompassing competencies in feature engineering, multimodal modeling, labeling and data quality strategies, evaluation metrics, serving architecture, scalability, and operational monitoring.