RSS export of vacancies - Only featured vacancies : No / Profession : F08 Géochimie, F09 Géologie, F10 Géophysique

2026-4052 - Geophysics Research Engineer – Seismic Methods (M/F)

Tue, 05 May 2026 22:19:33 Z

Category : F10 Geophysics/Engineer / Researcher
Contract : Permanent contract
Position description :
Your main responsibilities will include: -Developing innovative seismic acquisition approaches (e.g., novel sensors, sources, optimized survey geometries, Distributed Acoustic Sensing – DAS), -Advancing state-of-the-art seismic processing, imaging, and inversion methods (e.g., hard-rock seismics, artificial intelligence, Full Waveform Inversion – FWI, Quantitative Interpretation – QI), -Designing, organizing, supervising, and/or contributing to marine and land seismic field campaigns; processing, interpreting, and exploiting acquired datasets, -Contributing to and/or coordinating the development of collaborative research programs, public policy support projects, and commercial activities in seismic methods, -Preparing and responding to calls for proposals in partnership with research institutions and industry stakeholders, -Disseminating scientific results through peer-reviewed publications (high-impact journals) and presentations at international conferences, -Co-supervising PhD candidates and postdoctoral researchers, -Contributing to BRGM's Quality and Environmental Management Systems (QMS/EMS).

Requested start date : Octobre 1st, 2026 Education : PhD Experience : 5 – 10 years You hold a PhD in geophysics, ideally complemented by postdoctoral experience abroad. You have at least 5 to 10 years of experience in a research institute or geophysical company, with demonstrated expertise in seismic acquisition, processing, imaging, and/or inversion. You will bring the following skills and competencies: -Strong expertise in active seismic methods (reflection, MASW, VSP, onshore/offshore), -Advanced knowledge of seismic data processing and imaging techniques: statics corrections, denoising, demultiple, 5D regularization, velocity model building, migration, FWI, -Knowledge of quantitative interpretation (QI) would be an asset, -Programming skills (e.g., Fortran, MPI, MATLAB, Python), -Strong interest in research and innovation, -Proven ability in scientific communication (peer-reviewed publications, international conferences), -Ability to engage effectively in collaborative and partnership-based environments, -Strong teamwork skills, -Excellent analytical, synthesis, and scientific writing abilities, -Autonomy, rigor, and strong organizational skills, -Fluency in English, both written and spoken.
Location : Orléans

2026-4048 - Postdoctoral Researcher in Sedimentary Basin Geology (M/F)

Thu, 30 Apr 2026 13:26:56 Z

Category : F09 Geology/Engineer / Researcher
Contract : Post-doctoral contrat
Position description :
As part of this postdoctoral project, you will: - Interpret approximately 300 km of reprocessed seismic reflection profiles acquired in the western and eastern sectors of the mining basin; - Integrate and harmonize these newly interpreted seismic lines converted to depth with existing datasets and models, ensuring kinematic and structural consistency at the basin scale in 3D; - Build and update a regional 3D structural model of the basin, incorporating major tectonic discontinuities (transfer zones, thrust faults, etc…); - Integrate multi-source datasets (seismic data, boreholes, coal horizon maps and associated fault networks, gravimetric data) to refine the geometry of deep reservoirs; - Develop a robust structural framework to support: -kinematic modelling of thermal regimes and fluid circulation (WP4), -and, where possible, petrophysical characterization of reservoir units at the local scale (WP2). You will contribute to delivering a coherent, up-to-date, and operational 3D representation of these deep reservoirs, essential for assessing the geothermal potential of the basin. More broadly, you will contribute to the scientific visibility of BRGM and the PEPR program by disseminating your research through peer-reviewed publications and presentations at national and international conferences. Your work will be supervised by Dr. L. Beccaletto (BRGM, Orléans, France) and Dr. O. Averbuch (LOG Laboratory, University of Lille, France). As a full member of the project team, you will collaborate with numerous partners involved in the GEOTHERBAMINE project (University of Cergy, IFPEN, University of Mons in Belgium, ENGIE). https://www.soussol-bien-commun.fr/en/2024-call-projects/geotherbamine-understanding-fluid-circulation-subsurface-former-nord-pas-de

Requested start date : October 1st, 2026 Contract type : Postdoctoral 24 months Education : PhD You hold a PhD in Earth Sciences and have strong expertise in structural geology and sedimentary basin modelling. Scientific and technical skills: - Strong background in structurally complex sedimentary basins, with a solid understanding of fold-and-thrust belt; - In-depth knowledge of deformation processes in orogenic belts, structural inheritance, and tectonic inversion within the Variscan geodynamic framework; - Proven experience in seismic reflection interpretation, ideally using dedicated software (horizon picking, fault network interpretation, time–depth conversion); - Proficiency in 3D geological modelling of complex geological systems, regardless of the software used; - Strong interest in deep geothermal resources and their geological characterization. Transversal skills: - Excellent analytical, synthesis, and multi-source data integration skills; - Ability to work autonomously while contributing effectively within a multidisciplinary team; - Strong scientific communication skills, both written and oral, in English (knowledge of French is not mandatory but would be an asset); - Ability to collaborate with academic and industrial partners in an international project framework.
Location : Orléans

2026-4044 - Research engineer BioGeochemist F/M

Mon, 27 Apr 2026 12:44:39 Z

Category : F08 Geochemistry/Engineer / Researcher
Contract : Permanent contract
Position description :
Your various tasks will be part of R&D projects, support for public policies, and commercial activities, both in France and internationally. You will be mainly responsible for: • Characterize, conceptualize, and model the subsurface, in connection with the development of geothermal energy, associated co-utilizations, heat storage, as well as gas storage such as H2 and/or CO2. • Develop and conduct research activities on the biogeochemistry of deep systems. At the interface of several scientific disciplines (geochemistry, microbiology, analytical chemistry...) • Work in the field (mainly for sampling/characterization), in the laboratory (conducting experiments, especially under pressure conditions, and analyses), and on the computer (data processing and modeling).

You will apply the following skills and qualities: • Mastery of hydro-bio-geochemical processes, • Conducting and analyzing complex experiments (physico-chemical parameters), • Data processing and interpretation, • Knowledge of geothermal energy/storage (an asset), • Project management, teamwork, communication, • Rigor, autonomy, initiative, • Scientific writing and English.
Location : ORLEANS

2026-4035 - PhD position: Meta-modelling for gravitational hazard mapping: application to rockfall avalanches

Wed, 22 Apr 2026 08:32:47 Z

Category : F10 Geophysics/Engineer / Researcher
Contract : Thesis
Position description :
Within the project team, you will be responsible for: Conducting a comprehensive literature review of the state of the art; Defining and testing meta-modelling methodologies for each component of the study; Building training datasets for the development of meta-models; Validating the developed tools on selected study sites; Ensuring the dissemination and proper management of the developed codes (e.g., via GitHub repositories); Regularly presenting and discussing results with the supervisory team; Writing and publishing at least two articles in international peer-reviewed journals; Presenting the research outcomes at at least one international conference. The PhD project is structured around three main objectives: Adapting meta-modelling approaches applied to shallow-flow models, incorporating the initial position as an input variable. This methodology will first be tested on synthetic topographies; Developing a meta-model for a case study on Réunion Island; Using this meta-model to produce hazard maps, based on both statistical approaches (direct uncertainty propagation) and ensemble approaches (envelope scenarios).

You will be expected to demonstrate the following skills and qualities: Strong programming skills (Python and/or R), as well as solid knowledge in numerical modelling and statistics; Proficiency in English, both written and spoken; Knowledge of hydraulic modelling, risk science, or meta-modelling would be considered an asset.
Location : PARIS

2026-4032 - PhD in Microbial CO₂ Bioprocessing in Geothermal Systems

Wed, 22 Apr 2026 08:32:06 Z

Category : F08 Geochemistry/Engineer / Researcher
Contract : Thesis
Position description :
This PhD focuses on optimizing the energy efficiency of a geothermal system in Draškovec (Croatia), whose fluids mainly contain methane (CH₄) and carbon dioxide (CO₂). The main objective is to control and enhance the biological conversion of dissolved CO₂ into CH₄ using microorganisms in a surface bioreactor. These microorganisms may be naturally occurring (from geothermal fluids) or selected in the laboratory. The extreme reservoir conditions (up to 250 bar and 100 °C), as well as those related to geothermal operations, strongly influence these biological processes. A detailed understanding of microbial requirements (temperature, pressure, nutrients) is therefore essential to optimize methanogenesis. A second objective is to assess the impact of CO₂ reinjection—resulting from methane combustion—on deep microbial communities and geochemical equilibria, as well as to investigate the fate of this CO₂, including its potential mineralization through biogeochemical processes. The PhD addresses several scientific questions: identification of microbial communities under extreme conditions, understanding methane production pathways from CO₂, evaluating the effects of CO₂ reinjection on deep ecosystems and its mineralization, and integrating these biological processes into geothermal systems. The work begins with geochemical and microbiological characterization of the reservoir through water and rock sampling campaigns. These analyses will identify microbial communities and provide samples for laboratory experiments, in collaboration with industrial and academic partners. In parallel, methanogenic microorganisms adapted to site conditions will be selected. The second phase involves laboratory experiments to assess methane production under varying conditions (temperature, pH, salinity). The most promising strains will be studied in detail to determine their nutritional needs and performance drivers. CO₂ mineralization pathways will also be explored. Finally, results will be integrated through pilot tests and geochemical simulations to evaluate the feasibility of coupling methane production with CO₂ reinjection under real conditions. Expected outcomes include improved knowledge of deep microbial ecosystems, identification of optimal conditions for CO₂-to-CH₄ conversion, and insights into CO₂ mineralization mechanisms. This project opens new perspectives for combining geothermal energy, renewable gas production, and carbon storage. The full PhD position is available on the Euraxess website: https://euraxess.ec.europa.eu/jobs/410970

Requested start date: 2026-09-01 Education: Master's degree You will demonstrate the following skills and qualities: - Ability to design and carry out laboratory experimental tests and conduct fieldwork ; - Strong knowledge in microbiology and geochemistry ; - Ability to work effectively in multidisciplinary teams ; - Strong communication skills to present and promote research results ; - Initiative and proactive mindset ; - Ability to work independently in organizing daily tasks while also integrating into a multidisciplinary team ; - Good communication and interpersonal skills, regardless of group size (internally or with clients) ; - Proficiency in English (reading, writing, and speaking) ; Although not mandatory, the following skills would be considered an asset: - Experience conducting experiments under anoxic conditions and/or controlled pressure and temperature conditions ; - Microorganism characterization techniques, particularly DNA-based methods (PCR, sequencing) ; - Bioinformatics and statistical analysis of community DNA data and field-related datasets ; - Knowledge of water and gas analysis techniques
Location : ORLEANS

2026-3993 - PhD thesis in biogeochemistry of geothermal systems

Fri, 13 Mar 2026 13:58:10 Z

Category : F08 Geochemistry/Engineer / Researcher
Contract : Thesis
Position description :
The work program is mainly structured around the following activities: Conducting a literature review on methanogenesis and CO₂ biomineralization processes in laboratory settings and in subsurface environments. Particular attention will be paid to the impact of fluid geochemistry and environmental conditions. Carrying out field sampling through a secondment with partners at HGI/AATG (Croatia). Training and further development in hydrogeochemical modeling using the calculation codes available at BRGM. Performing batch system experiments to identify the most promising methanogenic microorganisms capable of living and developing under the conditions of the study site. Studying the metabolic requirements of microorganisms for CH₄ production and analyzing the influence of experimental conditions on production rates. During a research stay in Germany with the partner GFZ, pressurized batch experiments will be conducted to characterize the effect of CO₂ reinjection on microorganisms and to identify potential metabolic pathways leading to CO₂ mineralization. Developing numerical models to describe, in a simplified way, the biogeochemical processes involved in methanogenesis and CO₂ biomineralization. Integrating the results with the aim of adapting them to geothermal exploitation conditions during a secondment at AATG. Writing scientific publications, participating in conferences, and preparing the PhD thesis manuscript.

Requested start date: 2026-09-01 Education: Master's degree You will demonstrate the following skills and qualities: Ability to design and carry out laboratory experimental tests and conduct fieldwork ; Strong knowledge in microbiology and geochemistry ; Ability to work effectively in multidisciplinary teams ; Strong communication skills to present and promote research results ; Initiative and proactive mindset ; Ability to work independently in organizing daily tasks while also integrating into a multidisciplinary team ; Good communication and interpersonal skills, regardless of group size (internally or with clients) ; Proficiency in English (reading, writing, and speaking) ; Although not mandatory, the following skills would be considered an asset: Experience conducting experiments under anoxic conditions and/or controlled pressure and temperature conditions ; Microorganism characterization techniques, particularly DNA-based methods (PCR, sequencing) ; Bioinformatics and statistical analysis of community DNA data and field-related datasets ; Knowledge of water and gas analysis techniques.
Location : ORLEANS

2026-4054 - Postdoctoral Researcher in Hydrogeology and Coastal Risks (F/M)

Thu, 21 May 2026 08:31:09 Z

Category : F13 Hydrogeology/Engineer / Researcher
Contract : Post-doctoral contrat
Position description :
The research focuses on the characterisation and functioning of coastal hydrosystems affected by saltwater intrusion, with the aim of improving our understanding of their complexities and supporting the management of current and future challenges. This work is based on two study sites in France: The Cap-Ferret sand spit, located between the Atlantic Ocean and the Arcachon Basin (Gironde,), constitutes a hydrosystem influenced by a dual marine forcing that remains poorly understood. Although saline intrusions have been observed on an ad hoc basis, the characterisation, geometry and potential dynamics of a double saline wedge remain unknown. To address these questions, data acquisition campaigns (geophysical and hydrogeological) will be carried out. Various conceptual operational models will be proposed across different transects in order to ultimately develop numerical hydrodynamic models (2D) that take density effects into account. These models will aim to simulate both short-term dynamics, such as tidal and waves influence, and long-term evolution related to climate change, while also taking into account possible local anthropogenic pressures. The 2nd study site, located in Hossegor (Landes, France) is characterized by the presence of coastal salt lake. The drinking water supply for the southern Landes relies on shallow aquifers close to the coast, which are heavily used during the summer months. The issue of saltwater intrusion has been recognised locally for over thirty years, however, knowledge remains limited regarding both the spatial distribution of saline intrusion and its geometry.

In particular, you will draw on the following skills and qualities: - strong scientific and technical knowledge in hydrogeology; - strong hydrogeological modelling skills; - data analysis and use of GIS tools; - working knowledge of programming languages (Matlab, Python or R); - knowledge of geochemistry, particularly isotopics, is an asset; - autonomous, proactive, and able to work effectively within multidisciplinary teams; - a good level of spoken and written English; - ability to synthesise information and strong writing skills are required.
Location : PESSAC

2026-4056 - Research engineer BioGeochemist F/M

Tue, 19 May 2026 11:12:55 Z

2026-4050 - PhD candidate in complex hydrogravitational processes

Tue, 05 May 2026 22:19:24 Z

Category : F11 Geotechnics/Engineer / Researcher
Contract : Thesis
Position description :
The overall objective of this work is to propose a methodology for analyzing and representing complex hydrogravitational processes in order to better characterize multi-hazard situations in a changing climate context. This notably involves proposing new spatialized representations to operationalize multi-hazard mapping in a non-stationary context. As a proof of concept, the developed approach is applied to a representative alpine site. This research is part of the targeted COCHAIR project (PEPR IRiMa) and contributes more specifically to WP2 dedicated to multi-risk analyses. The specific objectives and planned milestones are: 1. Identification and qualitative modeling of representative multi-hazard situations 2. Develop a holistic quantitative model of the transient multi-hazard system 3. Deepen the spatialized analysis of characteristic multi-hazard situations For more details : https://www.pepr-risques.fr/sites/websites/www.pepr-risques.fr/files/documents/2026-04/Th%C3%A8se%20COCHAIR%202026.pdf

Solid background in geosciences Skills in statistical analysis and databases Knowledge of geological mapping Field observation skills Strong interest in natural hazards Passion for research, curiosity, rigor, analytical and synthesis abilities Writing skills
Location : ORLEANS

2026-4049 - Post-Doc Rapid response for post-earthquake crisis management

Tue, 05 May 2026 07:49:11 Z

Category : F10 Geophysics/Engineer / Researcher
Contract : Post-doctoral contrat
Position description :
As part of the FASTER project, the postdoctoral researcher (M/F) will primarily contribute to an in-depth analysis, conducted both at the multi-country level (France, Italy, Spain, Romania, Türkiye) and at the European Union level, of the technical and operational frameworks related to rapid response tools for earthquakes and their uses in crisis management context. This work will focus in particular on: - A functional comparison of existing systems; - An assessment of the needs of civil protection practitioners; - A comparison of doctrines for the use of rapid response tools; - The identification and analysis of feedback from actual activations during earthquakes. Based on these analyses, he will also contribute to strengthening the robustness and functional scope of the BRGM's SEISAid tool, as well as developing recommendations for the European scientific community to guide the development of rapid response tools useful to societies exposed to seismic risk. The postdoctoral researcher will also play an active role in establishing, leading and energizing the European “community of practice” dedicated to rapid response to earthquakes, and will support the project coordinator in his various tasks. He or she will also disseminate the results to the FASTER consortium and its team at BRGM, and promote the scientific value of the work carried out.

Candidates must hold a PhD (obtained within the last three years) in applied seismology, natural risk management or crisis management, or risk mapping, with a proven aptitude for applied research. Candidates must demonstrate all or some of the following skills: - Understanding of the challenges of operational natural risk management; - Solid knowledge in the field of Earth sciences applied to the understanding of seismic phenomena; - Geomatics skills (GIS, spatial analysis); - Good ability to communicate with different users from civil society (particularly in the civil protection sector) and to work in partnership with external actors; - Fluency in English (reading and writing scientific documents, oral presentation), fluency in French would be an advantage; - Knowledge of project management.
Location : ORLEANS