Bishai has been CEO of Orascom Construction since 2015, having joined Orascom in 1985. In November 2023, the company signed two contracts with Egypt’s National Authority for Tunnels, to develop two major railway projects in Egypt. By January 2024, it had handed over 21 wind turbine foundations for its 500-megawatt Build-Own-Operate Wind Farm in Ras Ghareb, Egypt. Bishai is also a board member of BESIX Group, and a member of the Egypt-U.S. Business Council.