[4] He previously served as Parliamentary Secretary to the Minister of Transport and as Deputy House Leader of the Government.
[11] Bittle also worked as an instructor in the Department of Continuing Education at Niagara College and as seminar leader at Brock University.
In September 2017, Bittle was appointed Deputy Leader of the Government in the House of Commons, the youngest Member of Parliament to hold that position.
[14] In March 2021, Bittle was appointed as Parliamentary Secretary to the Minister of the Environment and Climate Change, Jonathan Wilkinson.
[16] Bittle was re-elected as a Member of Parliament in the 2021 Canadian federal election but with a decreased share of the vote.