Damian Castrellon joined MMC, Inc. in 1992. Mr. Castrellon brings 25 years of experience in payroll, HRIS technologies, IT and customer service. He oversees a team of competent human resources, IT and payroll service professionals. Mr. Castrellon has been an advocate and a promoter of cutting edge technology and new concepts in payroll service organizations. He has been serving on the board for the American Payroll Association, Los Angeles Chapter since 1998. Prior to joining MMC, Mr. Castrellon served in a key leadership role for ADP and has had training from Anderson School of Management at UCLA.