Here is something of a working concept.
Inna Zolnerowich was born in Kaminsky. He is the oldest of four brothers and two sisters. As a youth he was recruited to the cities by an unscrupulous man, and worked in a factory making commlinks for a Megacorp. When he was sixteen he ran away and joined the Russian Army, where he underwent daily, rigorous beatings and learned from crack drill instructors kernels of important wisdom such as 'point the gun at the other guy, you stupid *****!' In an ideal world, Inna might have sent his meagre pay back to his village and family, but this is not an ideal world and Inna spent all of his money himself. A less scrupulous soldier got Inna involved in Vory activity just a year after Inna signed up with the army, and the pair were generally responsible for falsifying supply shipment manifests, ensuring the desirable hardware fell off the backs of trucks, or were never loaded into military trucks in the first place. He used his kickbacks to get cyberware, and gradually he moved into more lucrative jobs like extorting protection money, tracking down whores ignorant of the subdermal tracking chips they were implanted with, and generally taking part in street-level thuggery. Things go badly when he is sent to track down a whore who had won the heart of a Chechen gangster, and bullets were cordially exchanged. Inna took several for his partner. The Chechen turned out to be someone of import, and as Inna's partner was the son of a high-ranking Vor still working to get his stars, Inna was rewarded with a faked death and sent over to Seattle, where he works as a street level thug and moonlights as a shadowrunner.
Inna isn't very good at fighting. He's got 1 in firearms, unarmed, melee, and demolitions. I bit the bullet and assigned a skill point to have him speak English. If anyone wishes to know Inna, he will frequently use the phrase, "is (item), very much/highest quality." He will also affect a stereotypical Russian manner of speaking, but he will be inconsistent about it.