Master Gunnery Sergeant Davilmar enlisted in the United States Marine Corps and attended recruit training at MCRD Parris Island in January, 2001. Following recruit training and Marine Combat Training, he attended the Basic Musician's Course at the Naval School of Music (NAVSOM), in Virginia Beach, VA, and his first assignment as a percussionist was with the III Marine Expeditionary Force Band, Okinawa, Japan.
In 2003, MGySgt Davilmar transferred to the 2D Marine Aircraft Wing Band as Assistant Small Ensemble Leader and Percussion Section Leader. During this tour, he deployed to Al-Asad, Iraq, for Operation Iraqi Freedom, serving as Tactical Air Command Center (TACC) Security Force Sergeant of the Guard and TACC Security Flag Non-Commissioned Officer-In-Charge (NCOIC), after which he reported to Parris Island Marine Band as the unit's Small Ensemble Leader and Platoon Sergeant in 2006.
MGySgt Davilmar began teaching Percussion, Music Theory, and Ear Training at the NAVSOM in 2008. During this tour, he also served as Percussion Branch Head, Basic Academics Branch Head, Equal Opportunity Representative, and Command Physical Training Representative for the Marine Detachment. In 2015, he earned the 0916 MOS, Marine Corps Martial Arts Program (MCMAP) Instructor, at the Martial Arts Center of Excellence (MACE). Also in 2015, MGySgt Davilmar earned a Bachelor of Science in Criminal Justice, and returned to the MACE to earn the 0917 MOS, MCMAP Instructor Trainer.
In 2016, MGySgt Davilmar graduated from the NAVSOM Unit Leader Course, reporting to Marine Forces Reserve (MARFORRES) Band as the Small Ensemble Leader and Martial Arts Instructor Trainer. During this tour, he attended the NAVSOM Sound Reinforcement Course, graduating as honor graduate. In 2017, MGySgt Davilmar won the Staff Non-Commissioned Officer Marine Musician of the Year award, and for four nights during Veterans’ Week 2017, he was invited to represent the United States military as the featured drum set player for the 8G Band on Late Night with Seth Meyers.
Following his tour with MARFORRES Band, MGySgt Davilmar returned to the NAVSOM for the Senior Musicians' Course, earning the Commander Philip H. Field Award, which recognizes the student who best exemplifies musical excellence and leadership. MGySgt Davilmar transferred to 2D Marine Division Band as the Small Ensemble Leader and Bandmaster in 2019, and he then transferred to 2D Marine Aircraft Wing (MAW) Band as the Bandmaster in 2021. While at 2D MAW Band, he completed the Expeditionary Warfare School Distance Education Program. MGySgt Davilmar returned to NAVSOM in 2023 as the Advanced Course Branch Head, and he is currently serving as the Marine Detachment Senior Enlisted Advisor.
MGySgt Davilmar is married to former Marine Corps Band Enlisted Conductor GySgt Domany Davilmar, a marriage and family therapist in Virginia, and they have three children.