System Design Prep Plan for Engineers with 2+ Years Experience

System design architecture diagram on screen

Scope for two years experience

Expect to discuss one end-to-end feature, data consistency, and basic scaling. Deep CAP theorem lectures matter less than clear trade-offs on caching, queues, and DB choice.

Study map (four weeks)

Week 1: APIs, auth, pagination, idempotency. Week 2: Caching and CDNs. Week 3: Async processing and backpressure. Week 4: Observability (logs, metrics, traces) tied to incidents.

Mock format

Pick prompts like “URL shortener” or “notification system.” Draw boxes, note failure modes, estimate rough capacity.

Communication tips

State assumptions, ask clarifying questions, and timebox depth. Interviewers reward structured exploration.

India interview quirks

Some panels mix DSA with high-level design—clarify which round you are in before diving deep.

FAQ

Do I need microservices experience?

Understand pros/cons. Many roles still ship modular monoliths—show you can evolve architecture responsibly.

How deep on math?

Basic throughput/latency intuition helps. Heavy math is rare unless the team says so upfront.