After the defeat of the Kirner government at the 1992 state election, Jennings began working as an industrial officer, working for the Public Transport Union, Liquor, Hospitality and Miscellaneous Union and Electrical Trades Union at various times until his election to parliament.
After the Kirner administration's defeat in the 1992 state election, Jennings transitioned into a role as an industrial officer, working intermittently for various unions including the Public Transport Union, Liquor, Hospitality and Miscellaneous Union, and Electrical Trades Union before being elected to parliament.