Prof Lek received his B.Sc (Hons 1st) and Ph.D from the National University of Singapore in 2008 and 2013 respectively. He started teaching when he was an undergraduate and has taught for more than a decade. During this period, he has won a number of teaching awards such as NUS Annual Teaching Excellence Award (2015/16 and 2016/17), Faculty Teaching Excellence Award (2014/15, 2015/16, 2016/17), and Faculty Teaching Excellence Award Honor Roll (2017/18). Apart from teaching, he has also co-founded a few companies, with the recent one in the area of Big Data Analytics.