I'm a full-stack developer with my core competency in .net. I can build websites, apps, APIs integrate your CMS of choice (mine is Umbraco). My front end builds are typically Angular based however, I can work on/maintain almost anything. I've written applications in C# and Java, pre-processors like ASP.net and PHP, front end frameworks like angular and a little bit of React. Currently building mobile apps using Ionic and Angular. I've over 15 years of development experience, but really, you only care about the last 3-5, right?