In 1965 he became professional in the Scottish club Dundee United. After two seasons in Scotland he went to the Netherlands, where he played for DWS and F.C. Utrecht, and also lived in the United States in a period before he returned to Lyn in 1975. He has also played in Vålerenga, Sarpsborg and Bækkelaget.
He was capped 15 times and scored four goals for Norway.
Seemann was also capped three times for Norway in bandy. He died in a car accident in 1985, on the E6 highway near Dovre.