Jaksa put his studies on hold at the University of Michigan and attended the Joe Brinkman Umpire School in 1984. Upon graduation from the program, he entered professional baseball and umpired in the Appalachian League (1984), Midwest League (1985-1987), Carolina League (1988), and Southern League (1989).
Jaksa paused his studies at the University of Michigan and attended the Joe Brinkman Umpire School in 1984. Upon graduating from the program, he entered professional baseball and umpired in the Appalachian League (1984), Midwest League (1985-1987), Carolina League (1988), and Southern League (1989).