I've been working on Web Development as a full stack developer for the last 3 years at a big company.
My main skill is React but I work on my day-to-day with:
Frontend: HTML, CSS, C#, API's, etc.
Backend: C#, .NET, MicroServices, WSDL,XML, etc.
DB: SQLServer
I'm used to work in an Agile method wich is a method of work wich requires a lot of organization and I deal with different challenges in my developments related with the business logic.