I'm primarily a JavaScript developer (jQuery, React, Angular, et. al + Node) as that's my first choice and greatest depth of knowledge.
I'm also very knowledgeable about PHP but prefer to use classic OOP patterns with it hence my reprehension for WordPress.
I use ASP.Net and JavaEE at work. Kinda more circumstantial than anything, ie working with third party software. I actively choose not to seek further work with these tools because I don't enjoy using them.
I wouldn't mind building web services with .Net or Java, though. I imagine those jobs are probably not very prevalent but I was only on Upwork for a short time.
Indeed. Most work has to do with something pre-built, e.g CMS wordpress, joomla, etc. What projects do you work on?