How to Design a Scalable Cloud Architecture

Scalable architecture is not something you bolt on after the fact, it is a set of decisions made early that determine how far you can grow. Getting the foundation right saves a painful rebuild later.

The core principles are decoupling, statelessness, and horizontal scaling, and they reinforce each other. A system designed around them handles growth as a matter of course rather than a crisis.

• Decouple services so they scale independently
• Keep application servers stateless where possible
• Scale horizontally by adding more nodes
• Design for failure rather than assuming uptime