Extend a Banking Interface with Scheduled Payments and Account Merges
Company: Coinbase
Role: Software Engineer
Category: Software Engineering Fundamentals
Difficulty: hard
Interview Round: Technical Screen
Overview: Design scheduled payments and account merging behind a stable banking interface. The discussion centers on deterministic execution order, idempotent requests, insufficient-funds behavior, atomic balance invariants, retired account identities, cancellation races, audit history, and crash-safe recovery.