Doctoral Researcher (f_m_x) - Geomicrobiology GFZ Helmholtz Centre for Geosciences
GFZ is Germany's national centre for solid Earth research. We advance the understanding of dynamic processes to address global challenges, from mitigating the impacts of natural hazards and sustaining our habitat amid global change to responsibly managing georesources. We are part of the Helmholtz Association, the largest German scientific organisation. With around 1,200 employees as well as ca. 500 guest researchers, we contribute to the Helmholtz Research Field Earth and Environment, aligning cutting-edge research with societal relevance and international collaboration. Our work integrates multidisciplinary studies across Earth's system components, leveraging advanced technologies and infrastructure to research solutions and to transfer our knowledge to society. We are doing this according to our vision: “Taking the pulse of our Earth to safeguard a habitable planet”.
For section 3.3 Geomicrobiology (department “Geochemistry”), we are looking for a:Doctoral Researcher (f_m_x) - Geomicrobiology
The ERC Synergy project "Archean Park" is a collaboration between the GFZ Helmholtz Centre for Geosciences and the Universities of Duisburg-Essen, Münster, and Bremen. The project aims to identify relics of ancient cell biochemistry in subsurface ecosystems with high CO2 concentrations.
In addition to regular sampling of deep groundwater with extremely high CO2 concentrations at an existing deep borehole in the Czech Republic, further deep boreholes are being drilled in Germany and Italy. The GFZ is responsible for coordinating all fieldwork. The project is highly interdisciplinary, with regular in-person and virtual meetings with all project participants; reciprocal laboratory visits are an integral part of the project.
GFZ's focus in this project, besides planning and conducting the fieldwork, is enrichment and cultivation of novel microorganisms under high hydrostatic pressures and CO2 concentrations. Physiological experiments will then be performed on these cultures. Furthermore, the collected fluid and rock samples will be characterised mineralogically and (bio)geochemically. All analyses are conducted in close cooperation with the project partners.
Your responsibilities:
- Participation in field campaigns
- Set-up and maintenance of anaerobic enrichment cultures, partially under high pressure
- Geochemical analysis of fluid and rock samples using ion chromatography, X-ray fluorescence, ICP, titration, and gas chromatography-mass spectrometry
- Turnover rate and incorporation measurements with stable and radioisotopes
Your qualifications:
- MSc or equivalent in Geology, Biology, Microbiology, or related fields
- Strong interest in interdisciplinary work, preferably proven by MSc work and/or previous occupation
- Willingness to participate in field campaigns lasting several weeks
- Experience with anaerobic microbiological cultivation techniques, ideally including high-pressure cultivation
- Experience with geochemical laboratory techniques
- Willingness to work with radioisotopes
- Excellent command of written and spoken English; German language skills are desirable
- Driver's license class B or equivalent
What we offer:
- Ambitious and varied tasks in a dynamic and international research environment
- State-of-the-art equipment
- Public service benefits
- Extensive training opportunities
- Professional career advice offered by our in-house Career-Centr
- Flexible working hours and conditions
- Support with finding a good work-life balance offered by benefit@work
- Institute day-care centre on site
- Working at the Albert Einstein science park on the Telegrafenberg in Potsdam
- Workplace within walking distance of Potsdam main train station, or just a short ride on the shuttle bus
Start date: As soon as possible
Fixed-term: 30th April 2030
Salary: The position is classed as salary group 13 according to “TVöD Bund (Tarifgebiet Ost)”. The salary group is determined on the basis of the Collective Wage Agreement and the respective personal qualifications.
Working hours: Part-time 75% (currently 29.25 h/week)
Place of work: Potsdam
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Have we piqued your interest?
Please use our online application form only.
Requested documents: CV (including contact details for three references), letter of motivation and grades/certificates
The GFZ actively promotes diversity and explicitly welcomes applications from all qualified individuals, regardless of ethnic and social origin, nationality, gender, sexual orientation and identity, religion/belief, age and physical characteristics. We also promote an inclusive working environment in which everyone can fully develop their own talents. Anyone who has been recognised as severely disabled, will be given preferential consideration in the event of equal suitability and qualification in accordance with the provisions of the German Social Code IX. In case of further queries regarding gender equality, please do not hesitate to contact our Equal Opportunities Officer.
“Diversity in perspectives” is one of GFZ's core values. As an integral part of supporting diversity at our centre, we actively promote women in science and in leadership positions. We among others do this through our gender equality plan and the cascade model measures which we actively implement to enable sustainable equal opportunities in academic career paths. The GFZ thus committedly strives for gender equality in science, including in leadership positions, and strongly encourages women to apply.
Your personal data will be processed for the purpose of conducting the selection procedure on the basis of Art. 6 para. 1 b, Art. 88 GDPR in conjunction with Art. 26 of the Data Protection Act for the State of Brandenburg. After completion of the procedure, application documents will be deleted in compliance with data protection regulations.
In case of any further queries relating to the field of activity, please contact Prof. Dr. Jens Kallmeyer via email. If you have any general questions about the application process, please contact our recruiting team at our phone number +49 (0) 331-6264-28787.
Reference number
Reference Number 11170
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About the employer
GFZ Helmholtz Centre for Geosciences
GFZ Helmholtz Centre for Geosciences
The GFZ is Germany’s national center for research on the solid Earth. We advance the understanding of dynamic processes to address global challenges—ranging from mitigating the impacts of natural hazards and preserving our environment in times of global change to the responsible management of natural resources. We are a member of the Helmholtz Association, Germany’s largest scientific organization. With approximately 1,200 staff and around 500 visiting researchers, we contribute to the Helmholtz research area “Earth and Environment,” combining cutting-edge research with societal relevance and international collaboration.
Our work integrates multidisciplinary studies of Earth’s systems and leverages advanced technologies and infrastructures to explore solutions and bring our knowledge into society. We do all this in line with our vision: “In tune with the Earth—to preserve it as a habitable planet.”
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