Dr. Udaya Rathnayaka is currently working as a Professor at the Sabaragamuwa University of Sri Lanka. Dr. Rathnayaka received his Doctoral degree on Food Microbiology from the Asian Institute of Technology, Thailand. Dr. Rathnayaka completed his Masters degree on Biotechnology from the University of Peradeniya, Sri Lanka. He joined the academic staff of the Sabaragamuwa University of Sri Lanka in 2005 as a Lecturer (Probationary). then he was promoted to the post of Senior Lecturer in the year 2010. In the year 2013 he was promoted to the post of Professor as a merit promotion. He has held different administration position at the Sabaragamuwa University of Sri Lanka which includes Head of Department, Department of Food Science and Technology (2010-2013), Director, Center for Graduate Studies (2011-2014), Dean, Faculty of Applied Sciences (2013 to date). In addition, he has held different positions nationally and internationally.