Mahlab joined the Arab Contractors Company as an engineer early in his career, making his way up through the ranks until becoming deputy CEO in the 1990s, and CEO in 2001.[4]
Mahalab resigned as CEO of Arab Contractors in 2012.[6] Following the 2013 Egyptian coup d'etat, Hazem el-Beblawi was made interim Prime Minister and Mahlab was appointed as Minister of Housing.[3] Following the surprise resignation of el-Beblawi's government, Mahlab was tasked with forming an interim government.[7] He said that his administration would "work together to restore security and safety to Egypt and crush terrorism in all corners of the country." He also vowed to rebuild the economy.[8] The day after being sworn in he said that security is the main issue and called for a halt to protests and strikes.[1]
He was reappointed on 17 June 2014[11] and resigned on 12 September 2015, though the cabinet remained in their posts[12] until a new government was formed.[2]