- 2006-Present - Lecturer, Department of Mathematical Sciences, The University of Texas at El Paso, USA.
- 2020-Present - Lecturer, Department of Computer Science, El Paso Community College, El Paso, Texas, USA.
- 1995-2010 - Institute of Theoretical Mechanics, Department of Civil Engineering, Silesian University of Technology in Gliwice, Poland.
- 1995-2001 - Lecturer and Ph.D. Student
- 2001-2010 - Assistant Professor (2006-2010 - sabbatical leave)