Content Safety Filter
Company: Whatnot
Role: Software Engineer
Category: Coding & Algorithms
Difficulty: medium
Interview Round: Technical Screen
Overview: This coding question tests string parsing, tokenization logic, and pattern-matching algorithm design in a practical content moderation context. It evaluates proficiency in string manipulation, set lookups, and Trie-based multi-pattern search — progressing from single-word filtering to efficient contiguous phrase detection at scale.