Dr. EL-dash is working in Heliopolis university as a teacher in faculty of engineering, researcher and coordinators for SuRMap project for development upper graduate curriculum with many universities inside and outside Egypt, also assist in DeVilag project for development under graduate curricula. Dr. El-Dash obtained his Bachelor of Science in 1988 from the Faculty of Engineering – Cairo University. He received a Master of Science Degree in GIS public works survey engineering in 2006 from Cairo University. In 2013, Dr. El-Dash obtained his PhD from the Department of public works survey engineering at Cairo University in implementing satellite altimetry data for the determination of river Nile dynamic chart datum for safety navigation and computation of water storage in great lakes with GIS application. Dr. El-dash has been working for the Ministry of Water Resources and Irrigation (MWRI) since 1990. He is currently Researcher and teacher in Heliopolis university, he was a head of technical support of Asir municipality (Amana), teacher in Engineering college Nahda university also He was previously  the general manager of the planning and investment in Fayoum MWRI, director of the Lake Nasser Nubia Management framework project, World Bank from 2012 until 2014, task team leader from 2009 to 2012, General Manager of Technical Office Nile water sector until May 2014 hydrographic survey project, General Director of bilateral cooperation Nile basin countries at Nile water sector from 2013 until 2014, Acting Director of the Office National Nile Basin Initiative from 2011 to 2013, deputy director of the National Office Nile Basin Initiative from 20410 to 2011, director of the GIS unit Nile water sector from 2006 to 2009, The director of the GIS unit of the Nile water sector 2006 to 2009, and director of the GIS in Fayoum From 2003 until 2006, and the owner and director of the EL-Fardous computer and information systems counter part of Dutch project survey, field monitoring, assistant directors of works and director of works Fayoum Irrigation department and the representative of the ministry of many Conference and meetings at Nile Basin countries, an official representative of Nile water sector at Applied training project Nile Basin Initiative until the end. He is member of Egyptian Engineers Syndicate.