Lt. Col. Guillermo Guandique commissioned as an Engineer Officer in 2007 from the United States Military Academy and was assigned to the Special Troops Battalion, 2nd Heavy Brigade Combat Team, 1st Infantry Division at Fort Riley, Kansas. There he served as a Platoon Leader, Assistant Operations Officer (S3), and Rear Detachment Commander. He deployed in 2008 to Baghdad, Iraq, as part of Operation Iraqi Freedom.
After graduating from the Engineer Captains Career Course, Lt. Col. Guandique was assigned to Fort Bragg, North Carolina, where he served as an Engineer Planner for XVIII Airborne Corps and Assistant Operations Officer in 27th Engineer Battalion, 20th Engineer Brigade. He commanded the 618th Engineer Support Company from February 2014 to May 2015.
In 2016 he joined the faculty and staff at West Point as a Tactical Officer in the Brigade Tactical Department (BTD) and served as the Executive Officer to the Commandant of Cadets from 2018-2019.
Following his assignment at West Point, he served as a division staff officer in the 25th Infantry Division at Schofield Barracks, Hawaii, later serving as the Executive Officer, 29th Brigade Engineer Battalion, 3rd Infantry Brigade Combat Team.
Before reporting to USACE Louisville, he served as the Brigade Executive Officer, 130th Engineer Brigade.
Lt. Col. Guandique holds a Bachelor of Science in Systems Engineering from the United States Military Academy, A Master of Science in Engineer Management from the University of Missouri of Science and Technology, and a Master of Arts in Organizational Psychology from Columbia University. He is a certified project management professional. He is a graduate of the Engineer Officer Basic Course, the Engineer Captain’s Career Course, and the Army Command and General Staff College (CGSC).
His military awards and decorations include the Bronze Star, the Meritorious Service Medal (with 2 Bronze Oak Leaf Cluster), the Army Commendation Medal, the Army Achievement Medal, the Senior Parachutist Badge, and the Combat Action Badge.