I worked as a freelancer for a year. Now I use java + spring, I am taking Full Stack Spring Boot & React courses. I use the technology stack in my project: - Spring Boot Backend API - Frontend with React.js Hooks and Functions Components - Maven Build Tool - Databases using Postgres on Docker - Spring Data JPA - Packaging applications for deployment using Docker and Jib - AWS RDS & Elastic Beanstalk - Software Deployment Monitoring with Slack - Unit and Integration Testing with H2