Object Oriented Programming
Deployed a Backend System
Studied React
Learnt Java
Full-Stack Software Engineer
+3
From now on I am working 100% full stack and have built a quiz app. 
This has a Spring Boot backend with Rest:API interface and a React.js frontend. 
In doing so, I tried to consistently follow through with Clean Code and TDD. Also a charming design with styled components may not be missing of course. 
The current status covers only the first two user stories, a verification tool and also a multiplayer with Sockets.io is planned and will be added soon.