Puan Sarifah bt Yaacob, is a Civil Engineer by profession. She holds a Degree in Civil Engineering from University of Southwestern Lousiana, USA, and a Master Degree in Environmental Engineering, UTM Johor. She has more than 22 years experience in environmental fields including 19 years in solid waste management. She first joined Lankhorst Environmental & Waste Water as an environmental engineer. Later, she joined an environmental consultancy company, HICOM Environmental in May 1996 then Alam Flora Sdn. Bhd. in early 1997. She was the head of R&D department in Alam Flora Sdn Bhd and currently the head of corporate planning, corporate planning of DRB Hicom Environmental Services Sdn Bhd, which is wholly owned by Alam Flora.
She was key in setting up the Waste Management Association of Malaysia (WMAM) and until today she is still active in WMAM activities. Currently she is the WMAM Chairman of Training and Development Committee
She was appointed as the Technical Expert for the Green Tech Financing Scheme proposal evaluation. She has been actively participated in development of Malaysian Standard on solid waste and National Occupational Skills Standard.