Lets talk about Junkers.

[Nikolaus]

Let me introduce my Junkers.

Nikolaus Tinkerer, Captain and pilot of "The Rustbucket" Armored Transport.
Vladimir Kostakov, Captain and pilot of "Dirty Sally" Pirate Train

They were raised in simple working-class families, they grew up together and they worked for DSE for about 10 years, making it to the "Employee of the month" wall of fame frequently. Yet they were fired without real reasons. That's what you get for bleeding and slaving for about a decade.
Naturally, they were not pleased and in the confusion of the moment, wanted revenge. Since they were both technologically-inclined they joined what seemed the best choice. The Junkers. All the freedom and tech they could ever want.

***
-Vladimir is a bit cold-hearted. He loves smuggling "C", making cash, living large, spending money, buying all the new tech and shiny things. He likes being surrounded by women (well-paid, beautiful women) and could not care less about the world around him, as long as he's living good.
-For him, technology means buying the best devices for the job, from a smuggler, and connecting it all together with the minimum fuss.
-While he's not the smartest guy around, he can talk you into buying the Pequena Negra or the Manhattan Docking Rings, if he sees profit in that.
-However, being in love with humanity (albeit just the female half of it) he does not enjoy killing. Robbing you blind, yes. Murdering you, no.
-He thinks "Junker For Life" and he really means it.
***

-Nikolaus is a guy with mixed feelings. Usually he is emotionally unstable, yet that is somehow keeping him focused. He likes the solitude of his ship and spends most of his time exploring around or tinkering with whatever is at hand. He often cries over the fate of the world and dreams that he could change it, make a difference. He does not care much about most of the people, and thinks that somehow, they deserve their fates. Thus, with no respect for life whatsoever, he could kill you without even blinking. Killing a person is just like unplugging a useless piece of machinery, to make room for some other piece of machinery that actually does its job properly.
-For him, technology means stealing or scavenging old pieces of junk that are totally inappropriate for the job and then tinkering and tuning them until they do said job, about as good as an expensive device.
-He is rather smart and keeps reading all kinds of stuff, however, most of it are technical manuals. He could debate with you over any subject, but would rather use that time in a more productive manner. Say, rewiring some power conduits.
-He probably COULD talk you into buying the Pequena Negra or the Manhattan Docking Rings, if he sees profit in that, however he would most likely shoot you instead, to save some time.
-He thinks "This world is a nice place, too bad there are people all around screwing it up" and he really means that.
-Lately he thinks about leaving the Junkers and joining a better cause. Perhaps the SCRA. Maybe something can be done for this world after all.
***