Engr. Leonel Joseph D. Malayao, CE, RMP, is a seasoned QS and Commercial Manager based in Saudi Arabia with over 15 years of progressive leadership in large-scale building, infrastructure, and real estate development projects. A licensed Civil Engineer and Master Plumber, he holds professional memberships with Quantity Surveyor International (MQSi), the Canadian Institute of Quantity Surveyors (CIQS), the New Zealand Institute of Quantity Surveyors (NZIQS), the Royal Institution of Chartered Surveyors (RICS), and the Saudi Council of Engineers (SCE). Throughout his career across the Kingdom of Saudi Arabia and the Philippines, Engr. Malayao has successfully directed commercial strategies, administered high-value subcontracts, and overseen tendering processes for landmark multi-million dollar developments, including the Madinah Gate, KEC Hub, and Red Sea Development projects.Specializing in end-to-end commercial operations, Engr. Malayao possesses expert proficiency in cost estimation, Bill of Quantities (BOQ) extraction, progress valuation, claim preparation, and final account negotiations. His practice is anchored in international measurement frameworks, including POMI, SMM, and NRM2, supplemented by advanced digital takeoff tools such as iTWO costX, AutoCAD, ACONEX, and SAP Business One. Having managed commercial frameworks for major employers like Erth Real Estate Development, Knowledge Economic City Company, Al Kifah Holding, and El-Seif Engineering, he excels at optimizing profit margins, ensuring regulatory compliance, and driving cross-functional alignment between clients, consultants, and contractors.