Formerly a self-appointed Director of Morale Enhancement, Rudy worked at his family's cannery and bakery, similar to Mama Dolce's Food Processing, near Appalachia, telling jokes to the workers as the resident comedian. However, his brothers wanted him to leave, forcing Rudy to take a job as a client of the Blue Ridge Caravan Company, selling pepperoni rolls, telling jokes, and making deliveries.
The following is based on non-canon behind the scenes information.
Rudy will occasionally say "Rudy has wares, if you have caps." This is a reference to a similar line spoken by the Khajiit in The Elder Scrolls V: Skyrim, another Bethesda Softworks title ("Khajiit has wares, if you have coin."). Carl McKevitt, who contributed to much of the Blue Ridge Caravan Company's design and writing, including Rudy, confirmed that this was intentional.[Non-canon 1]
End of information based on non-canon behind the scenes information
↑Vault Dweller: "Where are you from?" Rudy Fernandez: "My family runs a cannery and bakery a few days from here. Like Mama Dolce's up near Morgantown. Less killer communist robots, though. Anyways, my brothers run the place. For a while I was the resident comedian. Ya know, tellin' jokes to guys working the machines. I called myself 'Director of Morale Enhancement.' But, my brothers wanted me to take my act on the road. Now I get to risk my neck running deliveries, tellin' jokes, and selling pepperoni rolls to you fine people." (Rudy Fernandez's dialogue)