Doris Doris is an experienced project engineer currently involved in the delivery phase service for the study team at GHD since April 2023. Previously, Doris worked as a testing and commissioning engineer and graduate engineer at MTR Corporation (Australia) from February 2021 to April 2023, focusing on the Sydney Metro City and Southwest Line, specifically within the tunnels team. Earlier experience includes serving as a project engineer in the project management office at CSCEC Middle East from October 2018 to July 2020, providing project management services for 14 building construction projects, and as a mechanical project engineer from January 2015 to September 2016, where construction asset management was a primary responsibility in Dubai and Abu Dhabi. Doris holds a Master of Science in Integrated Building Systems from ETH Zürich and a Bachelor's Degree in Mechanical Engineering from the University of Sydney.