Al-Sager joined NBK in 1978 and assumed his current role as the group CEO in 2014. As of Q3 2023, the bank had $119.2 billion in assets. In October 2022, NBK launched its global women leadership initiative, NBK RISE. In October 2023, it launched the “Bankee” financial literacy program for schools in cooperation with MoE and Nazaha. Al-Sager is also the chairman of the board of several NBK subsidiaries, including NBK (International), and a board member of Watani Wealth Management.