- January 1991-October 1991: Research Assistant in the Laboratory of Eukaryotic Molecular Genetics, MRC NIMR, Mill Hill, London, U.K..
- October 1992-March 1993: Post-doctoral fellow in the Laboratory of Eukaryotic Molecular Genetics, MRC NIMR, Mill Hill, London, U.K..
- November 1994-May 2000: Post-doctoral scientist in the Department of Microbiology, Medical School, National University of Athens, Athens, Greece.
- 2000-01: Instructor for the post-graduate course “Open and Distance Education” of the Greek Open University.
- May 2000 - December 2004 : Lecturer in the Department of Microbiology, Medical School, National University of Athens, Athens, Greece.
- December 2004 - May 2013: Assistant Professor in the Department of Microbiology, Medical School, National University of Athens, Athens, Greece.
- June 2013 - today: Associate Professor in the Department of Microbiology, Medical School, National University of Athens, Athens, Greece.
- October 1992-March 1993: Post-doctoral fellow in the Laboratory of Eukaryotic Molecular Genetics, MRC NIMR, Mill Hill, London, U.K..
- November 1994-May 2000: Post-doctoral scientist in the Department of Microbiology, Medical School, National University of Athens, Athens, Greece.
- 2000-01: Instructor for the post-graduate course “Open and Distance Education” of the Greek Open University.
- May 2000 - December 2004 : Lecturer in the Department of Microbiology, Medical School, National University of Athens, Athens, Greece.
- December 2004 - May 2013: Assistant Professor in the Department of Microbiology, Medical School, National University of Athens, Athens, Greece.
- June 2013 - today: Associate Professor in the Department of Microbiology, Medical School, National University of Athens, Athens, Greece.
