Backend and DevOps Supporting Guide

System design roadmap in Egyptfor engineers who want to move beyond single-service thinking

This guide focuses on the architecture judgment that makes backend and DevOps candidates more credible in interviews and on real teams.

Request flow, stateless services, and how APIs behave under real traffic.

Database choices, indexing, caching layers, queues, and consistency tradeoffs.

Horizontal scaling, load balancing, background jobs, and fault isolation.

Observability, rate limiting, retries, and reliability thinking under failure.

Explaining architecture clearly in writing and interviews instead of name-dropping tools.