Sergeant Major Guzman enlisted in the Marine Corps in November 1998 and attended recruit training at Marine Corps Recruit Depot in San Diego, California. After completing recruit training, he went through Marine Combat Training and then reported to Camp Johnson, Camp Lejeune, for the Defense Basic Preservation and Packing Course, graduating in April 1999.
In May 1999, Private First Class Guzman transferred to the Material Readiness Battalion, 3rd Force Service Support Group in Okinawa, Japan. During his time with the 3rd Force Service Support Group, he served as the Administrative Chief of the Supply Company, a Non-Commissioned Officer in Charge of the Wooden Fabrication Section, and as a Platoon Sergeant for the Preservation, Packaging, and Packing Section.
In July 2005, Sergeant Guzman reported to Drill Instructor School at Marine Corps Recruit Depot, San Diego, and was assigned to Company K, 3rd Recruit Training Battalion. While in Company K, he served both as a Drill Instructor and Senior Drill Instructor. In November 2007, he transferred to Company M as the Chief Drill Instructor.
In September 2008, Staff Sergeant Guzman reported to Combat Logistics Regiment 15 (CLR-15) in Camp Pendleton, California. During this assignment, he augmented Combat Logistics Battalion 7, Headquarters and Service Company, in Twenty-Nine Palms, California. He served as the Staff Noncommissioned Officer in Charge (SNCOIC) of the Preservation, Packaging, and Packing Section, deploying to Iraq from February to September 2009 in support of Operation Iraqi Freedom. Upon returning to CLR-15, he deployed from September 2010 to April 2011 to Afghanistan in support of Operation Enduring Freedom, fulfilling the role of SNCOIC for the Preservation, Packaging, and Packing Section.
In May 2011, Staff Sergeant Guzman reported to Officer Candidate School in Quantico, Virginia, where he served as a Sergeant Instructor for Companies K and I. In August 2011, he was assigned to the Naval Reserve Officer Training Corps at the University of California, Berkeley, as the Assistant Marine Officer Instructor. In May 2012, Gunnery Sergeant Guzman was augmented to Officer Candidate School, Company G, as a Sergeant Instructor in support of the 1st Increment.
In August 2014, Gunnery Sergeant Guzman joined Supply Company, 3rd Supply Battalion, where he served as the Receiving SNCOIC for the Preservation, Packaging, and Packaging Section and as Company Gunnery Sergeant. From January 2016 to July 2017, he held the position of Company First Sergeant with 7th Communication Battalion. From August 2017 to November 2019, he held the position of Detachment First Sergeant for Bravo and Headquarters Detachments, Marine Wing Communications Squadron 38.
In November 2019, Sergeant Major Guzman was promoted to his current rank and reported to Recruiting Station Sacramento, serving as the Recruiting Station Sergeant Major. Upon completing this tour, he reported to 1st Maintenance Battalion in July 2022, serving as the battalion Sergeant Major. In May 2024, he reported to the 11th Marine Expeditionary Unit, where he is currently serving as the 11th MEU Sergeant Major.
Sergeant Major Guzman's personal awards include the (3) Meritorious Service Medal, (3) Navy and Marine Corps Commendation Medals and (3) Navy and Marine Corps Achievement Medals.