Plamondon earned a Masters of Management Studies and B. Comm. (Honours) from
Carleton University. In 1983, he became a member of the
Canadian Institute of Chartered Accountants and was elected Fellow (FCPA) in 2003. In 2018, he completed the Rotman-ICD Directors Education Program. In 1988, he ran for
Federal Parliament as a
Progressive Conservative. In 2012, he was awarded the
Queen Elizabeth II Diamond Jubilee Medal. Also in 2012, he led a campaign that resulted in the renaming of the Ottawa River Parkway to the Sir John A. Macdonald Parkway, now renamed to the
Kichi Zibi Mikan. In 2014, Plamondon was appointed by the Government of Canada to the board of directors of the
National Capital Commission, where he served as chair of the audit committee and on the executive committee. In 2017, he was elected by the NCC Board of Directors to serve as interim chair. His term on the NCC board concluded in June 2018. In 2018, Plamondon launched an initiative to establish the Wellington National Mall in the Parliamentary Precinct of Ottawa. In 2019, he was appointed by the Government of Ontario to the board of directors of OPTrust, where he sits on the Governance and Audit committees. OPTrust holds about $22 billion in assets, which funds the pension plan for about 100,000 members of
OPSEU and its retirees. The same year, Plamondon conceived and launched
The Prime Ministers Series—a partnership of the University of Ottawa and the Canada School of Public Service.
Delivering Transformative Change for Canadians with the Rt. Hon. Brian Mulroney was held in Ottawa on March 5, 2019, in front of over 500 aspiring and senior public servants. Former prime minister Jean Chretien was featured on March 3, 2020, and was interviewed by Plamondon. In October 2020, on the occasion of the fiftieth anniversary of the
October Crisis, Plamondon was a featured speaker in a BBC radio documentary hosted by noted historian
Margaret MacMillan. In 2021, Plamondon was appointed by the Senate of Canada to serve on its Standing Committee on Audit and Oversight. Plamondon currently sits on the advisory board of the Digital Academy of the Canada School of Public Service as well as the boards of the National Portrait Gallery, Ottawa Business Events, and the Ottawa chapter of the Sir Winston Churchill Society. Other community contributions include serving on the board of directors of the Sierra Club of Canada, committees of the Ottawa Chamber of Commerce, and the YMCA. Following an audit of the
Ottawa-Carleton District School Board on June 27, 2025, the Ontario Minister of Education,
Paul Calandra, appointed Plamondon as supervisor of the deficit-stricken school board. ==Books==