[quote=@Thane]
<Snipped quote by Legion-114>

Oh, so I assume their jobs will be based on what they did before the war?
[/quote]

Yup, most are Vault-Tec staff or family members of them. 99% of the Vault are aware of their purpose.

There are multiple roles within in, Security, Scientist, Engineer etc.

[quote=@Orion]
<Snipped quote by Legion-114>

Well I was going with the idea that they had at least some contact with the outside world. Almost all of the vaults that were actually designed to have people live in them, rather than be part of a social experiment they had the need for at least some contact. 

So I figured that he might trade with or be aware of the existence of the vault.
[/quote]

That is indeed correct, Omega, the Vault's A.I deals with most things like that with the use of eyes bots. 
The vault door is unique in the fact that it is actually two vault doors that act like an airlock. Omega has from time to time sent out teams into the wasteland. However his operation range is limited to within radio towers running a subroutine program installed onto them.