A demographer, statistician, public health researcher and university lecturer with a PhD in Demography and Social Statistics (major: population ageing). Jacob’s research focuses on the health outcomes of the vulnerable groups especially the senior citizens and women of reproductive age in Africa. He leverages on both quantitative and qualitative research methods to investigate the demographic, historical, lifestyle, socioeconomic, and contextual factors accounting for poor health outcomes among the vulnerable groups. His research aims at creating knowledge for policy formulation, engagement and implementation to solve population health problems. He has conducted intra- and inter-country population health research in Africa using nationally representative cross-sectional and longitudinal complex data. Jacob has served as a volunteer and consultant for state and national projects of the United Nations Population Fund (UNFPA) and the World Health Organization (WHO) in Nigeria. He takes advantage of modern technologies and statistical packages including R, Stata, and SPSS among others to conduct innovative and cutting-edge research and teaching. He is currently exploring the life course and multilevel (micro-, meso- and macro-level) factors contributing to health inequalities among the vulnerable groups in urban centers of Africa using multidimensional and multi-disciplinary approaches. His academic engagements involve the transmission of knowledge to diverse learning communities within and outside the university systems. As a seasoned lecturer and trained fellow of CARTA, he collaborates and welcomes further collaborations with local, national, and international researchers of diverse disciplinary backgrounds relating to public health and social science research. He is well published in national and international journals.