Sergeant Major Bachman was born in Denton, Texas, on 29 August 1979. He enlisted in the Marine Corps in February 1999 and attended recruit training at Marine Corps Recruit Depot, San Diego, CA. Upon graduation, he reported to Marine Corps Base, Camp Pendleton, CA, for Marine Combat Training. Upon completion, Sergeant Major Bachman reported to Marine Corps Personnel Administration School, Camp Johnson, Camp Lejeune, NC.

In August of 1999, Sergeant Major Bachman received orders to 2nd Battalion, 7th Marine Regiment, 1st Marine Division in Twenty-nine Palms, CA. In February of 2001, Sergeant Major Bachman was transferred to Combat Service Support Group-1, in Twenty-nine Palms, CA, where he served as a personnel clerk. Following his assignment with Combat Service Support Group-1, Sergeant Major Bachman reported to the Installation Personnel Admin Center, Headquarters Battalion, Twenty-nine Palms, CA. In March of 2003, Sergeant Major Bachman was attached to 3rd Battalion, 23rd Marines in support of Operation Iraqi Freedom.

Returning from OIF I in August 2003, Sergeant Major Bachman was transferred to MACS-23, 4th Marine Air Wing, in Aurora, CO. In February 2005, Sergeant Major Bachman was reassigned to Alpha Battery, 1st Battalion, 14th Marine Regiment, 4th Marine Division as the Administration Chief. In January 2006, Sergeant Major Bachman returned to Iraq with the 1st Marine Expeditionary Force in Fallujah, Iraq, in support of OIF II. Sergeant Major Bachman left Baghdad in October 2006 and was transferred to Quebec Battery, 5th Battalion, 14th Marines, 4th Marine Division.

In July of 2007, Sergeant Major Bachman was assigned to 3rd Recruit Training Battalion Company L, where he served as a Drill Instructor, Senior Drill Instructor, and Chief Drill Instructor. In August 2010, Sergeant Major Bachman was transferred to Company H, Marine Cryptologic Support Battalion in San Antonio, Texas, where he served as the Administration Chief and Company Gunnery Sergeant. In February 2014, Sergeant Major Bachman was transferred to Marine Corps Recruit Depot, San Diego, CA, where he served in the 1st Recruit Training Battalion and the Special Training Company as the Company First Sergeant. In September 2017, Sergeant Major Bachman was transferred to Expeditionary Warfare Training Group Pacific, Coronado, CA, serving as the Command First Sergeant. 

In April of 2019, Sergeant Major Bachman was transferred to 1st Marine Corps District, Marine Corps Recruiting Station Boston for duties as the Recruiting Station Sergeant Major. In July of 2022, Sergeant Major Bachman reported to Combat Logistics Battalion 15, and he deployed with the 15th Marine Expeditionary Unit.

In October of 2024, Sergeant Major Bachman was transferred to Headquarters and Service Battalion, MCRD San Diego, where he currently serves as the Battalion Sergeant Major.

Sergeant Major Bachman's personal awards include the Meritorious Service Medal with two gold stars, Navy Commendation Medal with two gold stars, Navy and Marine Corps Achievement Medal with three gold stars, and Combat Action Ribbon.

Sergeant Major Bachman is married to Sarah Bachman.