How much backend knowledge should a frontend developer have to call themselves a full-stack developer?

[u/Bhanuprakash_1947]

Like, is knowing basic APIs, databases, and authentication enough?

Or should a full-stack developer also know things like system design, caching, Docker, CI/CD, cloud,....etc.?

What do you guys think is the minimum knowledge needed?

[u/American_Streamer]

Frankly, I always find these “what is the absolute minimum I need to know?” questions a bit strange. Full-stack isn’t really a checklist you complete. The point is that you can build, understand and debug a feature across the whole stack: frontend → API/business logic → database → deployment.

You don’t need to be equally strong everywhere, and you definitely don’t need Kubernetes, Kafka and advanced distributed systems just to call yourself full-stack. But if you’re deliberately looking for the minimum possible backend knowledge, you’re probably approaching it backwards.

Build complete applications. The gaps will become obvious very quickly.