Aileen Jamieson started her career with Esso Petroleum Company at the Fawley refinery near Southampton. She held a variety of technical and commercial roles prior to attaining Chartered Engineer status in 2000.

In 2001, she moved to Wood Mackenzie where she spent over 9 years leading both oil and gas downstream research and consulting teams. In 2010, she took a Director role with project management consultancy Turner & Townsend, where Ms Jamieson is currently Global Head of performance benchmarking.