I could make the base and the foundation of your applicaction or website with javascript (know more languages, but now I'm offering just javascript)
Make the frontend of your website depending of your prompt
Make the backend of your webiste too if is needed it to get users and data
connected to the database too
I have another service launching the application or web using cloud storage as database. Check it out on my profile
Puedo hablar en español tambien, es mi lengua madre