Professor Stoller, before 1986, owned and operated his own CPA practice. He subsequently sold his practice to become a Professor at Augsburg College. He enjoys being connected to college students and the excitement of learning.

Stoller leads the Augsburg Business Center, which places students in companies where they help solve problems or implement projects. The Business Center places the students in real life business projects. "It shows them that many times there is no real right or wrong answer in the real world."

In 1996, Stoller was invited by the Dean of Catholic University in Lublin, Poland to set up curriculum and to teach a two week seminar for financial auditing. He was asked to return later to set up curriculum and teach a two week seminar for Mergers and Aquisitions. During his subsequent visits he provided consultation with the Solidarity Labor Party on various issues of privatization.

Through this experience in Poland, in 1999, he was offered a position to set up a "Business Center" at Palacky University in the Czech Republic. This was funded by the European Union.

Since then, he has led several student groups on a study to the Czech Republic. The class, "Social and Cultural Impact of the Emerging Free Market Economy", offers an intensive experience in historical as well as contemporary Czech culture, society, and economics. Students meet with business leaders, workers, and citizens to discuss the impact of the privatization process and the development of capitalist enterprises in the ex-communist country. They also discuss the Czech Republic as a new EU country.

More recently, he has developed curriculum and has given lectures in Shanghai, China. In 2006, he has also taught and brought students to Karlsruhe, Germany.