On October 17, 1989, Sobieski was named assistant coach of the Sidekicks, a position he held until January 28, 1990. In April 1992, he was named the head coach of the Poland national futsal team. He coached the team at the 1992 FIFA Futsal World Championship. Between 2000 and 2005, he served as an assistant coach with the Dallas Burn of Major League Soccer.