Java/Groovy Postgres/Cockroach/NOSQL NodeJS Javascript/React

Java XML HTML WSDL Javascript

JavaScript NodeJS Java React Angular

PHP Node.js Java JavaScript HTML

Python Java Javascript Nodejs Maven

Javascript Node.js SQL java

NodeJS Java MongoDB D3 JavaScript

ReactJS NodeJS D3 JavaScript

JSON Maven Java J2EE REST.

Ruby Python Java Javascript PHP

APEX React JS GraphQL Node.js Javascript.

Java JavaScript SASS Angular Node.js

JAVA J2EE HTML CSS JavaScript

JavaScript CSS HTML5 JQuery RESTful APIs

Java Python JavaScript Node.js Angular