After high school, he attended Martin Luther College in New Ulm, MN, where he earned a Bachelor of Arts.
While in college he worked as the school's Sports Information Director (SID), and still enjoys keeping track of
all kinds of college sports. He also participated in a mission program called Travel-Canvass-Witness (TCW), and traveled to various parts of the country helping local churches with their community outreach.
After college, Pastor Guillaume attended Wisconsin Lutheran Seminary (WLS) in Mequon, WI. At WLS, he spent three years as a seminary assistant at St. Andrew's Lutheran Church in Milwaukee, and three years working at the Seminary library. After a year's internship in Hastings, MN (near St. Paul), he graduated with a Master of Divinity in 2005.
In May of 2005, he was assigned to Luther Preparatory School, a small high school in Watertown, WI, to serve
as a Tutor. There he taught the New Testament book of Acts and the Pauline Epistles to high school juniors. He also helped supervise the male students in the dormitories, coached track as an assistant, and directed youth mission trips to Atlanta and the Caribbean.
In May of 2007, he was called to serve as pastor of Abiding Word. Education and Outreach were Pastor Guillaume's ministry focus, but his responsibilities were all inclusive as the church's pastor.