You pickup a server-side language, like PHP or Python or anything you want (tons of languages will fit),

then you do nothing else but read the documentation for weeks until you get it,

then you install Atom and your language and start coding toy apps who don’t need any interface,

then you learn HTML and Javascript and start making interfaces,

then you pickup a database, like MySQL or PostgreSQL or anything you want (tons of SQL databases will fit, tons of NoSQL databases will fit too),

then you do nothing else but read the documentation until you get it,

then you plug your database to your toy apps,

then you plug you toy apps to your interfaces,

and that’s it, you’re a web developer.

If you do that 100% during 3 months, you will be ready for what a small company needs.

Happy coding!