1981 – laboratory operator at the Department of Biochemistry, the Roosvelt Hospital in Banska Bystrica
1983-1989 – Department of Medical Genetics; The Faculty Hospital in Martin, Prenatal Diagnostics Section
1989 - 1995 – The Institute of Preventive and Clinical Medicine in Bratislava, Department of Microbial Ecology and Bacteriology. Position: medical laboratory operator.
1996-1997 Quenus s.r.o.. Position: assistant
1998 - 2004 – The National Institute of Oncology, Department of Pathology, section of biopsy and necropsy material processing. Position: medical laboratory operator.
2002 - 2004 – Department of Pathology NOÚ; Position: head laboratory operator.
2004-2005 – Department of Pathologic Anatomy in the Ružinov Hospital. Position: head laboratory operator.