Started my intern as a Full stack, Java+ExtJS developer. Worked on financial application which received excel files with data and made calculations and many other staff on it. Then I switched to the ExtJS and became an ExtJS expert. I started HR application from scratch on the ExtJS. Then ExtJS became boring and I learned ReactJS. Started working as ExtJS + ReactJS developer. Mostly working on enterprise applications. Then I switched to the Angular. Wrote angular application for US hospitals from scratch with auth, roles, permissions, routing etc. Also worked on the angular application which was managing directions on the google maps. I also have experience on the back-end (Java spring, nodejs), currently I write only on the Angular but this experience is very helpful.