The Great World

The Great World is an artificially created planet with the size of half a galaxy. It servers as a hub world for many sub-species of humans and other species.
You wake up in your apartment, it's a brand new morning and you have a job to do. But first, tell a bit more about yourself.
Species - create a new one or play as one of the three already existing species (Alpha - normal humans; macros - giant humans; micros - tiny humans).
Appearance - how do you look?
Job - what do you work on?
extra details - anything you want to add.