| 2008 - | International Research Institute of Stavanger – IRIS, Reservoir and Geo Modelling Group Research scientist Geology |
2008 - | University of Stavanger, Petroleum Engineering Department Associate professor (hourly paid) Geology |
| 2006 - 2008 | University of Stavanger, Department of Mechanical and Structural Engineering and Materials Science Postdoc Scanning electron microscopy of porous rocks |
| 2002 - 2006 | University of Oslo, Department of Geosciences Postdoc Petroleum-related biostratigraphy |
| 1991 - 2000 | University of Bremen, Department of Geosciences |
| 2000 | Contract for work Design and programming of the INA8 website (8th International Nannoplankton Association Conference), University of Bremen |
| 1999 | Part-time lecturer Advanced students' mapping course (2 weeks), South Pyrenean thrust zone, Spain |
| 1995 - 1998 | Scientific assistant Subdepartment Historical Geology and Palaeontology: Development of calcareous dinoflagellates in the South Atlantic since the Late Cretaceous (project funded by the German National Science Foundation, DFG) |
| 1991 - 1994 | Student research assistant Subdepartments Marine Geology and Historical Geology and Palaeontology |
| 1989 - 2002 | University of Bremen (Germany) Ph.D. thesis:
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| 12-17 August 2002 | R/V Arne Tiselius (Sweden) High resolution climatic records from Scandinavian fjords With Prof. Dr. Bruce Corliss, Prof. Dr. Elisabeth Alve, Dr. Lennart Bornmalm |
| 2005 | Stabell, B. et al., 2005: Biostratigraphy in integrated basin studies. International short course (1 week), University of Oslo, Norway. |
| 2004 | Alve, E. et al., 2004: Biostratigraphy in integrated basin studies. International short course (1 week), University of Oslo, Norway. |
| 2003 | Stabell, B. et al., 2003: Biostratigrafi i integrerte bassengstudier (Biostratigraphy in integrated basin studies). Short course (1 week), University of Oslo, Norway. |
| 2001 | Zonneveld, K.A.F. et al., 2001: Workshop on calcareous dinoflagellates. 3rd National Meeting of Dinoflagellate-workers, Bremen, Germany. |
| 2000 | Willems, H. et al., 2000: 8th International Nannoplankton Association Conference (INA 8). Bremen, Germany. |
| Zonneveld, K.A.F. & Hildebrand-Habel, T., 2000: Workshop on calcareous dinoflagellates. 8th International Nannoplankton Association Conference (INA 8), Bremen, Germany. |
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| 1999 | Willems, H. et al., 1999: International course on organic and calcareous dinoflagellates. Graduate College of Material Flux in Marine Geosystems, Bremen University. |
| 1998 | Willems, H. et al., 1998: Workshop on calcareous dinoflagellate cysts. 6th International Conference on Modern and Fossil Dinoflagellates (DINO 6), Trondheim, Norway. |
| 2007 | Hjuler, Morten Leth Technical University of Denmark |
| 1993 | Zügel, Peter University of Bremen |