<div dir="ltr"><div><b>Postdoc in Arctic geomicrobiology and biogeochemistry (experimental) - Marseille, France</b></div><div><br></div><div><br></div><div><br></div><div><p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Aptos,sans-serif"><b>Apply: </b><a href="https://emploi.cnrs.fr/Offres/CDD/UMR7294-SYLJOV-023/Default.aspx?lang=EN" style="color:rgb(70,120,134)">https://emploi.cnrs.fr/Offres/CDD/UMR7294-SYLJOV-023/Default.aspx?lang=EN</a><b>
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<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Aptos,sans-serif"><b>Application Deadline :</b> 30 September 2025
23:59:00 Paris time</p>
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<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Aptos,sans-serif"><b>Reference :</b> UMR7294-SYLJOV-023<br>
<b>Workplace :</b> Marseille, France<br>
<b>Contract Period :</b> 24 months<br>
<b>Expected date of employment :</b> 1 February 2026<br>
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<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Aptos,sans-serif"><b>Missions</b></p>
<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Aptos,sans-serif">We are seeking a postdoc (M/W) in geomicrobiology (PhD-level
position) in Marseille, France, to work on the European Research Council funded
Starting Grant project 'SIESTA: The Role of Microbial Dormancy as an Ecological
and Biogeochemical Regulator on Earth'. The position is under the supervision
of Dr. James Bradley (<a href="https://www.jbradleylab.com/">https://www.jbradleylab.com/</a>). The recruited person will
work with the principal investigator and will participate in laboratory
experiments, data analysis, field work, and work as part of a project team that
includes doctoral students and technical staff. The main objective of this
postdoc position is (1) to measure the activity and dormancy of diverse
microbial communities in cryospheric environments, and (2) to link the activity
and dormancy of these microbial communities to biogeochemical cycles. This data
will feed into wider project goals to understand the role of dormancy as a
regulator of biogeochemical cycles, and to link dormancy to the emergence,
survival and evolution of microbial populations.<br>
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Applicants should hold a Ph.D. in a relevant natural science discipline (e.g.
environmental microbiology, geomicrobiology and biogeochemistry, microbial
ecology and evolution). The CDD is offered for 2 years and is renewable on an
annual basis, contingent on satisfactory performance evaluations. We expect a
flexible start date around February 2026, adjustable based on the candidate's
availability and the requirements of the project.<br>
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Applicants should submit IN ENGLISH 1) a current curriculum vitae; 2) a cover
letter (maximum 2 pages) stating their motivation for applying to this
position, research interests, relevant skills, training and experience; 3)
contact information for at least two and up to three professional references.
Please combine these documents into a single PDF. Important: Please also email
Dr. James Bradley (<a href="mailto:james.bradley@mio.osupytheas.fr">james.bradley@mio.osupytheas.fr</a>) to confirm your intention
to apply. Apply as soon as possible. The application window will remain open
for three weeks after the date that it is advertised online, and on a rolling
basis thereafter (depending on whether or not a candidate has been selected).
Contact Dr James Bradley (<a href="mailto:james.bradley@mio.osupytheas.fr">james.bradley@mio.osupytheas.fr</a>) with any questions.</p>
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<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Aptos,sans-serif"><b>Activities</b></p>
<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Aptos,sans-serif">The postdoc (M/W) will contribute to different research
aspects on the project:</p>
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</span></span>Study/analysis of cryosphere (cryoconite, ice,
sediment, soil) environments and microbiomes (experimental and observational).</p>
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</span></span>High-resolution sampling of natural microbial
populations (including fieldwork in remote Arctic regions).</p>
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</span></span>Molecular and experimental microbiological and
biogeochemical laboratory work.</p>
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</span></span>Generation and analyses (bioinformatic and
statistical) of environment and microbiome data, including amplicon sequencing
libraries, metagenomes, and metatranscriptomes.</p>
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</span></span>Publish (as lead and co-author) in leading
academic journals, participation in scientific conferences, outreach
activities.</p>
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</span></span>Collate and catalogue data for deposition and
archiving in data repositories.</p>
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<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Aptos,sans-serif"><b>Skills</b></p>
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</span></span>Expert knowledge of microbial ecology,
biogeochemistry, microbial adaptation to extreme environments, microbial
ecophysiology.</p>
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</span></span>Demonstrated skills and experience in a range of
microbiology competencies (molecular biology, environmental microbiology,
'omics/sequencing, physiology/incubation/activity measurement and experiments).</p>
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</span></span>Technical skills and experience in microbial
incubation experiments, activity/ecophysiology measurement at the community
and/or single cell level, metagenomics and/or metatranscriptomics.</p>
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</span></span>Technical skills and experience in cell-specific
activity measurements including fluorescent markers for cell activity, flow
cytometry, cell sorting (e.g. BONCAT-FACS).</p>
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</span></span>Quantitative skills in analysis of large
datasets, for example: to integrate biological/genomic data with biogeochemical
measurements, biogeographic, phylogenomic, comparative, time series (community
or population) modelling/analyses.</p>
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</span></span>Demonstrated skills in bioinformatic and
statistical analyses of microbiome, geochemical and ecological data including
sequencing data.</p>
<p class="gmail-MsoListParagraphCxSpMiddle" style="margin:0cm 0cm 0cm 36pt;font-size:12pt;font-family:Aptos,sans-serif"><span style="font-family:Symbol">·<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">
</span></span>Analysis skills: write and execute code in R,
Python, GitHub etc., high-performance computing.</p>
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</span></span>Strong oral and written communication skills in
English.</p>
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</span></span>Ability to work independently and flexibly.</p>
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</span></span>Ability to work harmoniously as part of a team.</p>
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</span></span>A track-record of research productivity.</p>
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</span></span>Awareness of open science standards for
microbiome research (reproducible analyses, preservation of metadata and
repository of public data).</p>
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<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Aptos,sans-serif"><b>Work Context</b></p>
<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Aptos,sans-serif">The successful candidate (M/W) will work at the
Mediterranean Institute of Oceanology (MIO), in Marseille Luminy. The MIO is an
Oceanography research laboratory of the Universities of Aix-Marseille, Toulon,
CNRS and IRD. It is integrated into OSU Pythéas. Its objectives are to better
understand the ocean system and its evolution in response to global change. It
constitutes a center of expertise in biology, ecology, biodiversity,
microbiology, fisheries, physics, chemistry, biogeochemistry and marine sedimentology.
Its frameworks are the world ocean, its interfaces with the continent, the
atmosphere and the sediment. The MIO has more than 250 people, including around
a hundred researchers (CNRS, IRD) and teacher-researchers from universities,
around sixty engineers and technicians, more than 50 doctoral students and an
administrative team serving research. The candidate (M/W) will join the MEB
team, working in the ERC project SIESTA led by James Bradley. The successful
candidate (M/W) will enjoy a vibrant research group, access to excellent
research facilities and platforms at the Mediterranean Institute of
Oceanography and Aix-Marseille University, and be embedded in a team committed
to high scientific integrity, open and reproducible science, and promoting inclusivity.
Marseille is an affordable, vibrant and historic city on the Mediterranean
coast, with culinary excellence, diverse cultural experiences, and a large
international community. The Mediterranean Institute of Oceanography, on the
Luminy campus of Aix-Marseille Université, is surrounded by nature being
nestled among the spectacular Calanques National Park.</p>
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<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Aptos,sans-serif"><b>Constraints and risks</b></p>
<p class="MsoNormal" style="margin:0cm;font-size:12pt;font-family:Aptos,sans-serif">Travel and fieldwork in remote (glaciated, Arctic)
environments for field collection of samples, and attending scientific meetings
for dissemination of results.</p>
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