Career
Oosting started his career as a teacher in Oldenzaal. From 1978 to 1987 he was an alderman for the Labour Party (Labour Party) in Oldenzaal. Subsequently he was mayor of Gieten from 1987 to 1997 and also mayor ad international of Eelde from 1991 to 1992, succeedingly mayor ad international of Ambt Delden from 1998 to 2001, and mayor ad international from Vlagtwedde in 2009.
