Constantine was born in Montreal attended McGill University, earning his B.Eng. in Mechanical Engineering in 1985. He moved among Montreal, Toronto and Ottawa, settling in Toronto for the majority of his professional career.
He earned his MBA at Wilfrid Laurier University in 1995.
Constantine spent the last 20 years in senior management and leadership roles in energy conservation, renewables and sustainable development. He led the development of an $800 million conservation program portfolio at the Ontario Power Authority in the mid 2000s and led the marketing efforts of the world’s largest lake-based renewable energy system for cooling commercial buildings (Enwave Energy Corporation).
Constantine has worked as an independent senior management contractor and operated a product distribution business for more than 10 years. He is a long-time board director of Sustainable Buildings Canada (Twice former Chair, Treasurer) and has been retained for the past 10 years to facilitate (more than 500) high performance building design workshops on behalf of Enbridge Gas Distribution conservation programs.
He has extensive experience liaising with government on both the political and bureaucracy fronts and has worked with Fortune 500s, start -ups and NGOs.
Constantine relocated to Montreal in the summer of 2021.