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Het slimme netwerk waar studenten en professionals hun stage of baan vinden.

PhD Position in Marine Methane Biogeochemistry

Geplaatst 3 jul. 2025
Delen:
Werkervaring
0 tot 2 jaar
Full-time / part-time
Full-time
Functie
Salaris
€ 2.901 - € 3.707 per maand
Soort opleiding
Taalvereiste
Engels (Vloeiend)
Startdatum
1 januari 2026
Deadline
30 augustus 2025

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Contribute to an increased understanding of carbon cycle feedbacks in the climate system! Thrive in the dynamic blend of seagoing fieldwork, laboratory experiments, and modelling as a PhD candidate exploring key biogeochemical drivers of microbial methane removal in coastal systems such as estuaries, bays, and fjords.

Eutrophication and global warming are increasing the production of the greenhouse gas methane in coastal marine sediments worldwide. Methanotrophs play a key role in removing the methane through aerobic and anaerobic microbial processes. The efficiency of this methane removal is decreasing, potentially contributing to a positive feedback loop between warming and further methane release.

We offer two PhD positions:

  • Position 1: Aerobic methane removal. Emerging evidence shows that aerobic methanotrophs are present and active in anoxic marine waters. In this project, you will study the role of these aerobic methanotrophs in removing methane in coastal systems and the related biogeochemical controls.
  • Position 2: Anaerobic methane removal. High-latitude coastal sediments are increasingly subject to an increased input of organic matter and metal oxides from land. In this project, you will study how this impacts the anaerobic removal of methane.

You will use state-of-the-art techniques for sampling and analysis (e.g. benthic lander incubations, synchrotron-based X-ray spectroscopy, methane isotopes, metagenomics and transcriptomics), combined with reactive transport modelling.

Your teaching load may be up to 10% of your working time.

Profile

  • You hold an MSc degree in Earth, Environmental or Life Sciences (e.g. biogeochemistry, microbial ecology, environmental chemistry).
  • You have good communication skills and are able to operate in a dynamic international research team.
  • You have a good command of written and spoken English.
  • You are willing and able to develop yourself into an independent scientist (growth mindset).
  • Experience with chemical analysis is essential.
  • Experience in fieldwork would be an advantage.

We offer

  • We will give you a temporary employment contract (1.0 FTE) of 1.5 years, after which your performance will be evaluated. If the evaluation is positive, your contract will be extended by 2.5 years (4-year contract).
  • You will receive a starting salary of €2,901 gross per month based on a 38-hour working week, which will increase to €3,707 in the fourth year.
  • You will receive an 8% holiday allowance and an 8,3% end-of-year bonus.
  • We offer Dual Career Coaching. The Dual Career Coaching assists your partner via support, tools, and resources to improve their chances of independently finding employment in the Netherlands.
  • You will receive extra days off. With full-time employment, you can choose between 30 or 41 days of annual leave instead of the statutory 20.

Additional employment conditions

Work and science require good employment practices. Radboud University's primary and secondary employment conditions reflect this. You can make arrangements for the best possible work-life balance with flexible working hours, various leave arrangements and working from home. You are also able to compose part of your employment conditions yourself. For example, exchange income for extra leave days and receive a reimbursement for your sports membership. In addition, you receive a 34% discount on the sports and cultural activities at Radboud University as an employee. And, of course, we offer a good pension plan. We also give you plenty of room and responsibility to develop your talents and realise your ambitions. Therefore, we provide various training and development schemes.

We are

You will be part of the EMBRACER research consortium. At EMBRACER we work at the very frontiers of knowledge on climate change, Earth’s climate system and climate feedbacks. Within its 10-year research programme, EMBRACER brings together a wide range of world-leading climate experts with the aim to address existing uncertainties about climate feedbacks at the boundaries between oceans, land, ice and atmosphere. Our interdisciplinary approach and state-of-the-art infrastructure will bring us forward in our understanding of the impact of climate feedbacks emerging over the next decades to centuries.

The department of Microbiology is part of the Radboud Institute for Biological and Environmental Sciences (RIBES), Faculty of Science, Radboud University, Nijmegen (Netherlands), and is world-leading in environmental microbiology and (marine) biogeochemistry. We offer a dynamic research environment with a strong international profile, a state-of-the-art laboratory infrastructure, strong national and international collaborations, and opportunities for researchers who wish to further develop themselves both scientifically and professionally through a large variety of courses, training opportunities and conferences. Radboud University is an equal opportunity employer, committed to building a culturally diverse intellectual community, and as such encourages applications from women and minorities.

Faculty of Science
The Faculty of Science (FNWI), part of Radboud University, engages in groundbreaking research and excellent education. In doing so, we push the boundaries of scientific knowledge and pass that knowledge on to the next generation. We seek solutions to major societal challenges, such as cybercrime and climate change and work on major scientific challenges, such as those in the quantum world. At the same time, we prepare our students for careers both within and outside the scientific field. Currently, more than 1,300 colleagues contribute to research and education, some as researchers and lecturers, others as technical and administrative support officers. The faculty has a strong international character with staff from more than 70 countries. Together, we work in an informal, accessible and welcoming environment, with attention and space for personal and professional development for all. Radboud University
At Radboud University, we aim to make an impact through our work. We achieve this by conducting groundbreaking research, providing high-quality education, offering excellent support, and fostering collaborations within and outside the university. In doing so, we contribute indispensably to a healthy, free world with equal opportunities for all. To accomplish this, we need even more colleagues who, based on their expertise, are willing to search for answers. We advocate for an inclusive community and welcome employees with diverse backgrounds, cultures, and perspectives. Will you also contribute to making the world a little better? You have a part to play.

Prof. C.P. Slomp (Caroline)
Professor - Microbiology caroline.slomp2 [at] ru.nl

De Radboud Universiteit in Nijmegen is een van de beste brede, klassieke universiteiten van Nederland. Gelegen op een groene campus ten zuiden van het stadscentrum van Nijmegen. Onze universiteit wil bijdragen aan een gezonde, vrije wereld met gelijke kansen voor iedereen.
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