He works full-time as a customer service representative and relied on his daughters to care for his sons and keep the house clean while he was gone.
He was 37 years old at the time of his appearance on Supernanny and now he is 54 years old in 2018.
Glenn's Facebook page - This says he graduated from Appleton East High School in 1983, and worked at GFS Marketplace in Appleton, Wisconsin. Also, Sara left him and he lost full custody of the kids!
GFS Marketplace seems to be a Cash and Carry-type warehouse store (the kind restaurants patronize).