Professor Sarker is an implementation researcher and a mixed-method expert. She is a physician with a Master's in Public Health (MPH) from Harvard University, the USA, and a Doctorate in Public Health from the University of Heidelberg, Germany. During her career, she has taught across four continents and has extensive research experience in Sub- Saharan Africa and Bangladesh. She has been awarded over US$ 10 million in research/capacity-building grants and has published 146 peer-reviewed articles and four book chapters. She is also the international advisory board member of The Lancet Global Health, World Federation Public Health Association, Medical Research Council UK, National Institute of Health Research UK, Chair of the Advisory Board of the HRP Alliance for Research Capacity Strengthening (RCS), and an Evaluation Advisory Committee Member of Gavi, the Vaccine Alliance. Prof Sarker was awarded the Heroines of Health global award in 2018. Before joining Brown SPH, Prof. Sarker was the Associate Dean & Professor of BRAC James P Grant School of Public Health, BRAC University, Bangladesh. She also served as the Acting Dean in 2015 and founded the Center of Excellence of Science of Implementation & Scale-Up (SISU). In her 30 years of public health career, she spent 10 years implementing community-based programs at BRAC, Bangladesh, the world's largest NGO.