In addition to regular teaching activities in the department of applied statistics (College of Business and Economics at the University of Rwanda), Dr Rutayisire has been always involved in various research and consultancy activities related to demography. He extended his knowledge in quantitative research with an internship on event history analysis in Max Planck Institute for Demographic Research as well as various summer courses on quantitative methods in Utrecht University. He was selected as 2012 Demographic and Health Surveys Fellow and trained on the computation of Complex Indicators and Multi-Dimensional Poverty Index in November 2016. He was selected as thematic analyst of Migration and Spatial Mobility of the last two Rwanda Population and Housing Census conducted respectively in 2002 and 2012.