Park resigned his seat with effect from 7 December 2012 and is replaced by Jayne Baxter. Park was formerly a trade union official working for Unite (formerly Amicus and the Amalgamated Engineering and Electrical Union) and the Scottish Trades Union Congress. He started working in Rosyth Dockyard in 1989 as an electrical apprentice. He became active in the Dockyard"s influential trade unions during the Trident refitting campaign in the early 1990s.
After becoming a shop steward he was elected the Dockyard"s youngest ever full time trade union convenor in 1998.
Park was appointed the Labour Party"s Skills spokesperson following the election of Wendy Alexander as leader in September 2007 and quickly established a campaign to increase the number of apprentices in Scotland. He was appointed in September 2008 to Iain Gray"s Shadow Cabinet as the Shadow Minister for Economy and Skills.
Park resigned his seat on 7 December 2012, to take up a position with the Community trades union. He is replaced by the next available Labour candidate from the Mid Scotland and Fife list, Fife Councillor Jayne Baxter (Cowdenbeath).