Prof. Al-Shamsi is the Director of Oncology Services at Burjeel Holdings UAE and Burjeel Oncology GCC, President of the Emirates Oncology Society, Lead of the Gulf Cancer Society, Professor of Oncology at the Gulf Medical University, Ajman, UAE, and an adjunct Professor of Oncology at the College of Medicine at the University of Sharjah. He is the first Emirati to be promoted to professor in oncology in the UAE. He is also the Chairman for Colorectal Cancer in the MENA region, appointed by the prestigious National Comprehensive Cancer Network®. He is the Chairman of the Oncology and Hematology Fellowship Training Program for the National Institute for Health Specialties in the United Arab Emirates. He is board-certified in both internal medicine and oncology from the UK(MRCP), USA(ABIM), and Canada (FRCPC). He is also awarded the FRCP (London) in 2023. He is the only physician in the UAE with a subspecialty certification and training in gastrointestinal oncology and the first Emirati to train and complete a clinical post-doctoral fellowship in palliative care. He was an assistant professor at the University of Texas MD Anderson Cancer Center between 2014 and 2017. He has published more than 120 peer-reviewed articles in JAMA Oncology, Lancet Oncology, The Oncologist, BMC Cancer, and many others. In 2022, he published the first book about cancer research in the UAE and the first book about cancer in the Arab World, both of which were launched at Dubai Expo 2020.