Choosing the right architecture is one of the most critical decisions in system design. Let’s break down the 4 most common backend architectures and when to use each. Monolithic Architecture A single unified codebase where all components are tightly coupled. ✅ Use when: Building MVPs Small teams Simple applications 👍 Pros: Easy to develop & deploy Faster initial development Simple debugging 👎 Cons: Hard to scale specific components Single point of failure Tight coupling Microservices Architecture Application is split into independent services communicating via APIs. ✅ Use when: Large applications Multiple teams Need independent scaling 👍 Pros: Scalability per service Fault isolation Team autonomy 👎 Cons: Operational complexity Data consistency challenges Harder testing Serverless Architecture Functions triggered by events, no server management required.…