Implement a JSON Parser
Company: Snowflake
Role: Software Engineer
Category: Coding & Algorithms
Difficulty: hard
Interview Round: Technical Screen
Overview: This question tests practical knowledge of parsing theory, including lexical analysis and recursive-descent parsing applied to a well-defined grammar. It evaluates a software engineer's ability to implement low-level string processing, handle edge cases in formal grammars, and produce robust error handling — skills commonly assessed in coding interviews at the senior level.