Every few weeks someone posts the same checklist: as a backend engineer, learn System Design, APIs, Databases, Distributed Systems, Caching, Security, DevOps, Performance, Cloud, Monitoring… and the list is correct but can be confusing without specifying when any of it matters. Lets take one end...
Source: [Dev.to](https://dev.to/towernter/building-apis-backend-api-concepts-and-when-to-use-them-32hh)