He began in May 2000 coordinating the Credit for Learning Program for the university. In January 2002, he joined the full-time faculty teaching marketing, human resources, small business administration, and strategic formulation. Allwein has been recognized as Indiana Tech's Outstanding Faculty Member and received its College of Business Award, as well as Tech's coveted Raising Expectations Award. He has also served as the President of Indiana Tech's Faculty Senate. From 2005-2011 he was responsible for the university's accreditation which was reaffirmed by The Higher Learning Commission in 2011. Allwein is currently serving on the 2013-2017 Institutional Actions Council (IAC) of The Higher Learning Commission.