Full stack (LAMP) developer.

Other stacks are also possible, e.g.:

• for desktop: Linux/Gnome 2 (MATE) is preferred, but OS X is very nice, IMNSHO :)
• Apache, nginx, lighttpd - most, less, sometimes
• MySQL but also PostgreSQL or Oracle
• P is for ... Python, recently. Perl, often. PHP (7) is not excluded.

One more thing. Any good developer should be able to prototype blazingly fast. Web apps (UI) is usually "prototyped" in Photoshop, what gives you only idea how system will look.

What to use when you are asked to prototype form functionality?

I use QtCreator.