Global vision

An ecosystem, not just a frontend and a backend. This path explores the roles before the tools: every block of the diagram will be covered, from the user to monitoring, DevOps and the cloud.

                    User
                         │
              Frontend (Web/Mobile/Desktop)
                         │
              ───────── API ─────────
                         │
                  Backend / Services
         ┌───────────────┼────────────────┐
         │               │                │
       Database        Cache         File storage
         │               │                │
   Message broker   Real time       Search engine
         │
    External services
         │
AI • Payment • Email • SMS • IoT • Blockchain
         │
  Monitoring • Logs • DevOps • Cloud

Systems path

8 levels

Systems skill tree — 114 topics

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Systems path

8 levels

Systems skill tree — 114 topics

Level 1 — Understanding a computer systemUnderstand the roles before the tools.

Level 2 — The main layers of an applicationAn application is a set of responsibilities.

Level 3 — The FrontendEverything the user sees.

Level 4 — The BackendMaking the decisions.

Level 5 — APIsLet several systems communicate.

Level 6 — DatabasesStore and retrieve data.

Level 7 — ProtocolsThe languages machines use to communicate.

Level 8 — AuthenticationVerify who the user is and what they can do.