Positions Held
- 1960 - 1961: Enterprise for Geophysical Investigations and Geological Mapping, geologist
- 1962 - 1969: Enterprise for Geophysical Investigations and Geological Mapping, Chief Geologist and Chief of Mapping Group
- 1969 - 1985: Geological Institute of the Bulgarian Academy of Sciences, Research Associate
- 1976 - 1979: National Industrial and Mining Society of Mauritania, Expert-Geologist
- 1985 - 1992: Geological Institute of the Bulgarian Academy of Sciences, Senior Research Associate
- since 1992: Geological Institute of the Bulgarian Academy of Sciences, Research Professor