Cristopher C. Donayre is a Filipino civil engineer with over 20 years of experience in quality control, inspection, and concrete batch plant operation in the Philippines, Saudi Arabia, Qatar, and Palau. He holds professional engineering licenses in the Philippines and Saudi Arabia. He has extensive experience in concrete mix design, testing, and quality control on infrastructure projects such as roads, buildings, and bridges. He is proficient in AutoCAD, TEKLA, and concrete batch plant operation and maintenance.