# Backend Knowledge

* Apart from being comfortable with the basics, which will allow to transition to similar stuff
  * Language
  * frameworks
  * algorithms
  * class design
  * system design
  * testing
  * refactoring
  * architecture
* Most languages, have many similar ideas, but different syntax
  * but to be an expert, you need to spend more time learning the details
* ### Most applications/systems are written using a framework, and this leads to needs to be framework developer and need good knowledge of this framework
* Main areas - dont need to be expert, but need a good understanding, and this includes hardware too. These are some areas that people will be more expert in one (t shaped developer)
  * Databases
    * Relational
    * SQL
  * Caches
  * Communication & Networks
    * rpc (http)
    * messaging
    * load balancers
  * Security
  * Devops
    * CI/CD
    * microservices (Containers, container management)
    * Monoliths
    * monitoring
    * deploying