Khalifa is a university professor.{{cite news|title=A closer look at Qandil's cabinet He worked in the public sector and served as chairman of the Egyptian Holding Company for Water and Wastewater at the Ministry of Housing from 2004 to 2011. Khalifa was appointed governor of Cairo in April 2011.{{cite news|author=Ahmed Aboul Enein|title=Qandil's faux independents|work=Daily News Egypt Khalifa was appointed minister of utilities, drinking water and sewage in August 2012 as part of the
cabinet led by
Prime Minister Hisham Qandil, and was an independent minister. His tenure ended on 17 July 2013 when the interim government led by Prime Minister
Hazem Al Beblawi was formed.{{cite news|author=Abigail Hauslohner|title=Interim Egyptian cabinet sworn in ==References==