Backend & Databases — Video + Progress

Programming fundamentals (Python / JS) freeCodeCamp / Python full-course videos

HTTP concepts — methods, headers, status codes HTTP basics video tutorials

REST API design basics — endpoints, verbs, status Node.js & Express full course (Traversy Media)

Node.js or Django — build simple APIs Corey Schafer — Django playlist

SQL basics — SELECT, JOINs, transactions SQL tutorial playlists (free)

Authentication fundamentals — sessions, hashed passwords JWT & auth tutorials (Traversy / others)

MongoDB (NoSQL) concepts — documents, indexing MongoDB University (video courses)

Microservices basics — boundaries, communication patterns Microservices playlists

JWT / OAuth — token-based auth OAuth & JWT tutorial playlists

Scaling basics — caching, load balancing, connection pooling Scaling & caching playlists

Backend & Databases Roadmap