Hazlee Azil Illias was born in Kuala Lumpur, Malaysia. He received his Bachelor's Degree in Electrical Engineering from the Universiti Malaya, Malaysia in 2006. He immediately joined Freescale Semiconductors (M) Sdn. Bhd. as a product engineer before pursuing his PhD in 2008. He obtained his PhD in Electrical Engineering from the University of Southampton, the United Kingdom in 2011. He was a Senior Lecturer in the Department of Electrical Engineering, Universiti Malaya, from 2011 to 2016. Since 2016, he has been an Associate Professor in the Department of Electrical Engineering, Universiti Malaya. He was the Head of the Department of Electrical Engineering from September 2013 to July 2014. Since joining the Universiti Malaya, he has received funding and grants of nearly RM 3 million (~USD 0.7 million), published more than 70 journal papers in ISI-indexed publications and 70 refereed conference papers, and successfully supervised the completion of 10 PhD, 5 master's degree by research, and 27 master's degree project (by coursework) candidates. His main research interests include the modelling and measurement of partial discharge phenomena in solid dielectric insulation, condition monitoring, insulation system diagnosis, lightning overvoltage, transmission line modelling, optimisation methods and artificial intelligence techniques.