I will create for you the web app that matches your exact needs: need a simple portfolio? I can do it. Need a complex web app? I can do that too. We can choose together the tech stack that I will use (keep in mind that I am a developer with advanced knowledge of the JavaScript ecosystem), or you can leave the choice up to me!
Whatever the choice will be, I will make sure your website is performant, accessible, cross-browser compatible and, optionally, installable as if it was a native app (a Progressive Web App).