08/2008 to 07/2015: Department of Safeguards, International Atomic Energy Agency (UNO)
10/2007 to 04/2008: Research Associate, Oak Ridge National Laboratory, Nuclear Science and Technology Division
04/2004 to 09/2007: Research Associate, Oak Ridge National Laboratory: NNSA Stockpile Stewardship Science Program
01/2003 to 04/2004: Research Associate, Los Alamos National Laboratory, Isotope & Nuclear ChemistryGroup, LANSCE accelerator facility.
10/2001 to 12/2002: Research Fellow, Florida State University, Department of Chemistry, (working with Prof. Gregory R. Choppin)
08/1997 to 09/2001: Research fellow to undertake PhD in nuclear chemistry at the University of Mainz, Institute of Nuclear Chemistry (supervisior: Prof. Dr. J.-V. Kratz), title of the thesis: "Development of an on-line-Chromatography for Element 106 (Seaborgium)".
06/1996: Degree obtained: "Diplom-Chemiker" (Msc) at 30th July 1997.
diploma-thesis work in nuclear chemistry at the University of Marburg, Institute of Nuclear Chemistry, Germany, supervisior: Prof. Dr. P. Patzelt, Title of the thesis: "A new determination of the half-life of 105mRh after separation from the fission products".
10/1993 to 07/1997: study of chemistry (main study) University of Marburg (Germany).
10/1991 to 09/1993: study of chemistry (basic study) Technical University of Dresden.
07/1989 to 08/1990: co-worker quality managment and technical advisery for the Sächsische Olefinwerke Böhlen AG, Böhlen (close to Leipzig).