Harden a URL-Caching HTTP Service for Production
Company: Shopify
Role: Software Engineer
Category: Software Engineering Fundamentals
Difficulty: medium
Interview Round: Technical Screen
Overview: Plan two safe iterations to harden an in-memory URL-caching HTTP service for production. Cover error boundaries and status codes, privacy-aware telemetry, API compatibility, shared-state migration, cache semantics, concurrency, stampedes, partial failures, observability, testing, and rollback.
