General Boyles was commissioned in 1982 through the Reserve Officer Training Corps program at Mississippi State University where he also received a Bachelor of Science in Biological engineering. Initially commissioned as an Army Medical Department of the United States Army officer, he later re-commissioned in the United States Army Engineer Corps.
In 2005, as the Deputy Commander, 168th Engineer Group, General Boyles managed the engineer response to Hurricane Katrina in Mississippi. In 2008, he deployed to Afghanistan in support of Operation Enduring Freedom with the 168th Engineer Brigade as Deputy Commander overseeing Engineer Sustainment operations in Regional Command - East and Regional Command - South for the 101st and 82nd Airborne Divisions. In 2012 he was assigned as Commander, 184th Sustainment Command, overseeing all subordinate unit missions ranging from state disaster relief to federal combat rotations executed under his command. In 2015 he was assigned Chief of Staff, Headquarters Kosovo Forces.
Major General Janson D. Boyles was initially appointed Adjutant General of Mississippi by Governor Phil Bryant on September 1, 2016, and reappointed Adjutant General of Mississippi on January 14, 2020, by Governor Tate Reeves. He also serves as the Commanding General of both the Mississippi Army and Air National Guard. He is responsible for providing the state of Mississippi and the United States of America with a ready force of more than 12,275 Citizen Soldiers and Airmen, equipped and trained to respond to any contingency, natural or manmade. General Boyles directs the Mississippi Military Department and oversees the development and coordination of all policies, plans, and programs of the Mississippi National Guard in concert with the Governor and Legislature of the State.
Outside of the Army in his civilian career he is President of Boyles Moak & Stone, Inc., a regional independent insurance agency providing property and casualty insurance and risk management services for public and private organizations.
Some of his other achievements include National President of the Mississippi State University Alumni Association, Mississippi Business Journal’s “Top 40 Businessmen under 40,” MetLife’s National Agents Council, Mississippi State University Insurance Chair Eagle Scout