Kindt decided to forgo his senior season at Wisconsin in order to be eligible for the 1947 NFL Draft. He was selected with the last pick of the first round (eleventh overall) by the Bears despite having an history with injuries, and recovering from an off-season knee surgery he suffered while playing a basketball game at Wisconsin. After playing dual positions in his first few seasons with the Bears, Kindt was used primarily on defense for his last six seasons in the league. Considered to be a defensive standout during his playing career, Kindt was selected to participate in one Pro Bowl, and led the team in interceptions several times.