Mr. Rahman is intensively engaged in socio-economic research and Environmental Impact Assessment (EIA) studies. Throughout his professional career, he has worked in fields such as livelihood modeling, Impact analysis on displacement, Social Impact Assessment (SIA), Monitoring and Evaluation Studies, Land Acquisition Plan (LAP), Resettlement Action Plan (RAP), and baseline analysis with expertize of social mobilization. As a statistician, he has conducted dependency tests for analyzing the impacts of different disasters on displacement and has performed Indexing of livelihood, sampling procedures, and sample size selection and trend analysis in monitoring issues. For doing those studies he has to operate SPSS, R, MS Access, and MS Excel. He also used to apply ArcGIS in sampling procedures. Mr. Rahman has been working in CEGIS since 2011.