Suliman assumed his current position in 2012, having first joined DHL Express in 1978. The company opened a new $48.3 million logistics center at Abu Dhabi’s Zayed International Airport in May 2024. In June 2024, DHL Express MENA inaugurated its new main office at Bahrain International Airport, along with the $234 million expansion of its regional hub. Suliman also sits on the board of Advanced Supply Management Operations in Saudi Arabia. He was previously country manager for DHL Express Saudi Arabia and DHL International Bahrain.