| since 2009 | Associate Professor, Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava, Slovakia |
| 2017 | Visiting Professor, Electrical Engineering and Computer Science Faculty, Lublin University of Technology, Lublin, Poland |
| 2014 | Visiting Professor, Laboratoire de Physique des Gaz et des Plasmas (LPGP), Universite Paris-Sud, Orsay, France |
| 2011 | Visiting Professor, Laboratoire de Physique des Gaz et des Plasmas (LPGP), Universite Paris-Sud, Orsay, France |
| 2008 | Visiting Professor, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan |
| 2007 | Visiting Professor, Department of Ecological Engineering, Toyohashi University of Technology, Toyohashi, Japan |
| 2006 | Visiting Professor, Department of Ecological Engineering, Toyohashi University of Technology, Toyohashi, Japan |
| 2002-2009 | Assistant Professor, Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava, Slovakia |
| 2002-2003 | Postdoctoral Fellow, Department of Ecological Engineering, Toyohashi University of Technology, Toyohashi, Japan |
| 1998-2002 | PhD Fellow, Faculty of Science and Engineering, Saga University, Saga, Japan |
| 1997-1998 | PhD Fellow, Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava, Slovakia |
| 1995-1997 | Civil Military Service, Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava, Slovakia |
| 1994-1995 | Research Scientist, Norwegian Technical University, Trondheim, Norway |
