Junker Jott was an engineer who served 30 years in the Republic Navy before retiring to lead Jott's Junkers, one of the five ruling crews on Mek-Sha in 3627 BBY.
Junker Jott worked for the Republic Navy for 30 years, before retiring from the service as a veteran. Many of Junker Jott's friends were killed by Imperials, leaving him with a deep dislike for the Empire, even after retiring from the Navy.
After moving to Mek-Sha, Junker Jott helped overthrow the incumbent Hutt rulers by programming the multitude of word droids to rebel against the Hutts. After expelling the Hutts, his crew became one of the leading factions on Mek-Sha, responsible for keeping the station from collapsing with his team of engineers and droids. Junker Jott oversaw the assault on The Brothers slavers' headquarters in the Brothers Oversight Center, assisting a Republic agent to free several slaves and eliminate a slaver lieutenant and the Sith Empire contact during a trade deal.
Junker Jott liked to constantly remind fellow residents on Mek-Sha that without him, the station would fall apart at least ten times a day. Jott was also deeply committed to the Republic and served as their staunchest ally on Mek-Sha. As such, he and his crew were often at odds with the slaving crew known as The Brothers, who revered slavery with an almost religious zeal and were the Sith Empire's largest supplier of slave labor through the exploitation and kidnap of refugees.