Full stack developers are like the Swiss Army knives of the tech world. They possess a diverse skill set that allows them to work on both the front end and back end of web applications, as well as handle other aspects of development like databases, servers, and hosting environments. Unicorn developers reach even further to include UI/UX and design.

They build the user-facing front end using HTML, CSS, and JavaScript frameworks for interactive experiences. On the back end, they handle server-side logic, database management, and API development using languages like Laravel/PHP. They also deploy applications to production environments, manage hosting infrastructure, and ensure reliability through testing, and debugging.

Throughout the development lifecycle, they maintain, optimize, and update applications to meet evolving needs.