Alammar is a senior lead landscape architect and assistant professor in the Department of Landscape Architecture at Imam Abdulrahman bin Faisal University in Saudi Arabia. Mashal pursued his PhD degree from the University of Liverpool, which focused on adopting a planning framework for planning, designing, and implementing green infrastructure in arid regions. Alammar serves as the vice president of the Saudi Society for Landscape Architecture. He is also an ambassador for the King Salman Urbanism Charter. Mashal has over 15 years of experience in research, education, and practice in the field of landscape architecture, with a particular focus on green infrastructure projects. Mashal achieved top positions in national university competitions in the field of landscape architecture during his master's studies at the University of Arizona in the United States. He also held the position of Community Design Studio Leader for the Landscape Architecture branch at the University of Arizona in the American Society of Landscape Architects (ASLA).