| From Sep 2008 | Research Scientist Max-Planck-Institute for Marine Microbiology, Bremen |
| Apr 2005 - Aug 2008 | Post-doctoral Research Fellow Max-Planck-Institute for Marine Microbiology, Bremen |
| Mar 2005 | Post-doctoral Researcher Department of Oceanography, University of Hawai‘i at Manoa. |
| 2004 | PhD in Oceanography, University of Hawai‘i at Manoa. Dissertation title: Microbial Ammonia Oxidation in Deep-Sea Hydrothermal Plumes (Advisor: Dr. James P. Cowen). |
| 1998 - 2004 | Graduate Research Assistant Department of Oceanography, University of Hawai‘i at Manoa. |
| 2000 - 2001, 2004 | Graduate Teaching Assistant Department of Oceanography, University of Hawai‘i at Manoa. |
| Jun - Aug 2001 | NASA Planetary Biology Internship Project title: Molecular Analyses of Ammonia-Oxidizing Bacteria in the Hydrothermal Sediments of Guaymas Basin, Gulf of California Marine Biological Laboratory and Woods Hole Oceanographic Institution (Advisors: Dr. Andreas P. Teske and Dr. Mitchell L. Sogin) |
| 1998 | BSc (Hon.) Oceanography with Marine Biology – 1st Class Honours University of Southampton |
| Jul - Sep 1997 | Research Assistant Department of Oceanography, Florida State University (Advisors: Dr. David Thistle, Dr. Lita Proctor) |