Colonist
This job has no access. But it's good to play if you are a newbie, because you can have an infinite number of colonists around. The Premier can give you more access on your identification card, so you can be something other than a random nobody who dies in the tunnels.
Overview
As a Colonist, you don't get paid! An obvious outrage, so you'll want to either get a job or just assist with various existing jobs around the colony. Feel free to ask over the radio if anyone would like any assistance. You don't have much access, so it'll be pretty hard to get anywhere, but this is still a good job for new players. It's also a good job to play if you want to hop into the colony but not occupy any actual job slots or have any specific duties, but be advised that the game is generally much more enjoyable if you take a job that actually gives you something to do when you're not actively engaged in ERP.