Sleit worked as the vice president of Strategic Group and director of professional services of Triada, United States.[1] He also assumed IT-related senior management positions in various US firms including Information Builders, MetLife, and Electronic Data Systems (EDS). He was the chief information officer (CIO) at Hamad Medical Organization which is affiliated body of Qatari Ministry of Public Health until 2005.[2] In 2005, he joined Jordan University and worked as a professor of computer science.[2] His main study fields are imaging databases, algorithms, health information systems and cloud computing.[3]
From 2007 to 2009 he was also Jordan University's vice chairman and director of the Computer Center.[1] In a cabinet reshuffle on 21 August 2013 he was appointed to the cabinet led by Prime Minister Abdullah Ensour as Minister of Information and Communications Technology.[4] He was replaced in a cabinet reshuffle on 2 March 2015 by Majd Shweikeh.[5]
Sleit is the dean of Information Technology College at Jordan University.