Backend

Java (Spring, Hibernate, Spark, Gson, JDBC)

Node.js

Postman, JMeter, VirtualVM

APIs REST, SOAP, HTTP, TCP/IP, SOCKETS

SQL, T-SQL, PL-SQL

MongoDB

SOLID, DRY

Frontend

Next.js

React.js

HTML5

CSS3

Javascript / Typescript

Prisma

tRPC