Atty. Mendoza has been in active law practice for more than twelve years. A graduate of San Beda College of Law, he worked as an Associate at the Angara Abello Concepcion Regala and Cruz Law Offices (ACCRALAW) and Suarez and Narvasa Law Firm. Thereafter, he joined the Gregorio Araneta Group of Companies and became its Senior Legal Counsel. His areas of practice include Civil and Criminal Litigation, Family Law, Corporate Law, Labor Law and Maritime Law.
Atty. Mendoza teaches in San Beda College of Law, San Sebastian Recoletos Institute of Law and New Era University College of Law. He is a Pre-Bar and Mandatory Continuing Legal Education (MCLE) lecturer. He is also a licensed Geodetic Engineer, having completed his degree in Bachelor of Science in Geodetic Engineering in the University of the Philippines-Diliman.
Atty. Mendoza placed third in the 2004 bar examinations.