He has been teaching at Texas State University since 1988. In 2002, Dr. Tajalli received an Award from the Centex Chapter of the American Society of Public Administration as Public Administration Professor of the Year. He has worked in the private sector as a chief accounting auditor, and as the vice president of Government Research Solutions, LLC. As a consultant to cities and governments, he has produced numerous reports. As a chief researcher for a $3 million Federal pilot program in Austin Texas, Dr. Tajalli produced three major annual reports for the Federal Government on the effectiveness of its pilot program. As a service to his community, every year he prepares the State mandated Racial Profiling Report for the City of San Marcos Police Department.