Implement an in-memory DB with TTL backup/restore
Company: Anthropic
Role: Software Engineer
Category: Coding & Algorithms
Difficulty: medium
Interview Round: Take-home Project
Quick Answer: This question evaluates implementation and reasoning skills for an in-memory nested key→field→value store with TTL-based expirations, snapshot backup/restore semantics, and timestamped operations, testing competencies in data structures, state management, and time-aware logic within the Coding & Algorithms domain.