Irene is a Technical Director (Building Services) in Beca and heads a team of engineers in carrying out Environmentally Sustainable Design , Building Condition Audits, Design Reviews and Feasibility Studies. She is a Green Mark Advanced Accredited Professional and Singapore Certified Energy Manager. She has successfully completed more than 50 Green Mark projects and has vast experience in providing advice to seeking innovative green building solution in Singapore as well as overseas. She was also involved in several R&D projects as Principal Investigator funded by Economic Development Board (EDB), as well as other R&D collaborations with University of California, Berkeley and Nanyang Technological University. Irene was involved as a taskforce member in Reinventing Green Mark and Pushing Boundaries Towards Net Zero Energy as part of the Singapore Green Building Masterplan 2020.