Stefan specializes in mathematical optimization with research focusing on theoretical aspects of semidefinite optimization and, more generally, convex optimization. He enjoys teaching freshman Calculus as well as upper level courses like Real Analysis and Linear Algebra, where it is possible to incorporate optimization topics. Stefan gets excited to introduce students to wild theorems, various applications of mathematics, and the beauty of God's creation and character. Outside of teaching and research, Stefan likes to spend time with his wife, Jodi, and their children, Jerra and Malachi. He is always looking to adventure outdoors through activities such as climbing, hiking, biking, fishing, canoeing, etc.