Les missions du poste
Closure date for receipt of applications : 08/05/2025
Who are we?
The UMR Geo-Ocean (www.geo-ocean.fr) is a joint research unit specialized in marine geosciences, with 3 main supervisory bodies : Université Bretagne Occidentale, CNRS and Ifremer, and a secondary one, Université Bretagne Sud. Within the Ifremer structure IT is part of the Physical Resources and Seabed Ecosystems department (REM). Its multidisciplinary focus (geology, geophysics, geochemistry, sedimentology, cartography, etc.) covers the processes that shape the earth from past to present, starting at the coast extending to the deep SEA. Geo-Ocean contains the ALMA team, a group focused on the study of marine hazards. This group is tasked with making major contributions to the study of the deep ocean and to the development of research activities in relation to Renewable Marine Energies, two priority themes of Ifremer and REM. The ALMA team (https://www.geo-ocean.fr/en/What-we-do/Marine-Hazards) is involved in a number of national and international projects and initiatives on the use of fiber optic data, with a stated aim of exploiting IT for the measurement of sub-seabed deformation, seismology and geophysical imaging.
Current projects include the use of a submarine cable to detect tectonic deformation of a fault off the coast of Catania as well as image its damage zone. Partnerships with industry focus on defining the instrumental response of fiber sensing (i.e., FiberSCOPE project), subsurface imaging and environmental monitoring of offshore wind farms. ALMA members lead the MARMOR consortium, an initiative of the French maritime community to promote the use of solid earth instruments, including interrogators for use on fiber optic cables with applications in solid earth-ocean interactions. ALMA is also in charge of the Tamtam project (France 2030), which will exploit scientific data acquired by a SMART cable connecting New Caledonia to Vanuatu in the Pacific.
What will your mission BE?
You will use data acquired with submarine cables (distributed measurements on optical fibers) to develop methods for the processing and the inversion of DAS (Distributed Acoustic Sensing) data, with the goal to obtain high-resolution images of geological structures at multiple scales. To do this, you will exploit massive datasets, using state-of-the-art geophysical methods such as full waveform inversion (FWI) and innovative techniques based on artificial intelligence (AI). Your research activities will support the institute's efforts on current and future projects using submarine cables for deep-sea exploration (France 2030), as well as on geophysical challenges associated with marine renewable energy. By integrating DAS observations with conventional data, such as seabed seismometers (OBS), you will contribute to the high-resolution characterization of active geological processes in the marine environment, as well as to the development and exploitation of DAS technology for monitoring the integrity of subsea infrastructures.
What will your activities BE?
- You will have a demonstrated expertise in the analysis and interpretation of geophysical data (seismology) for improving imaging and physical characterization of the subseafloor.
- You bring skills in processing voluminous datasets using artificial intelligence (machine learning, deep learning, etc.).
- You will work with the Datarmor team in Ifremer's IRSI computing department to develop parallel computing and/or GPU optimization for geophysical data analysis.
- You will supervise students at all levels as well as post-docs; to write publications and respond to projects' calls
- You will contribute to the development of a culture of innovation within the research unit by taking an interest in potential industrial transfers and the economic valorization of its activities, notably via Ifremer's internal tools (e.g., Institut Carnot MERS).
Collaborative work environment
Internal collaborative relationship : The candidate will work as part of a multidisciplinary team within ALMA, as well as other research/technical teams within GEO-OCEAN (ANTIPOD and GIPS), other research units within REM (RTD Unit) and the IRSI department (Research Infrastructures and Information Systems).
External collaborative relationship : The candidate will collaborate with marine science colleagues within the French and international community, as well as with external industrial partners following participation in collaborative projects with GEO-OCEAN. The candidate will also collaborate with data science researchers.
How are your activities organised?
- Activity rate : 100%
- Position based at Ifremer Plouzané, with possible travel for field missions. Offshore and/or coastal SEA campaigns possible.
- Open-ended contract - Position vacant.
L'adresse du poste
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Le profil recherché
Who are you?
- Strong skills in high-performance computing and artificial intelligence for massive data analysis and inversion for seismic imaging, using modern geophysical techniques such as full waveform inversion (FWI).
- Initial training : PhD in geophysics and/or physics with a specialization in AI.
- Post-doctoral experience will BE appreciated.
- Experience in a company or in partnership projects is an advantage for the position.
You have the following skills, knowledge and experience :
- Strong experience in information and signal processing
- Experience in data analysis, particularly of large datasets
- Experience in inverse methods applied to seismic imaging
- Research experience demonstrating ability to publish research work
- Advanced knowledge of programming/scripting languages
- Preferably knowledge/expertise of distributed fiber sensing techniques
You have the following qualities :
- Dynamic, highly motivated
- Team player, interested in working in a team, particularly a multidisciplinary one
- Desire to develop new technologies and techniques for geosciences in marine environments
- Ability to take part in campaigns at SEA or in the field
Bienvenue chez Ifremer
Join Ifremer, an ally of planetary well-being, to gain a better understanding of and better protection for the ocean.
From the abyss to the surface, from the coast to the open SEA, Ifremer is the French research institute that is wholly dedicated to the Ocean. Its teams carry out research, innovate and produce expert reports to protect the ocean, exploit its resources in a responsible manner and shares marine data.
Ifremer contributes its scientific expertise to throw light on public policies and develops solutions drawn from the ocean to meet the challenges of the ecological transition. Ifremer is the operator of France's oceanographic fleet with its shipbuilding subsidiary Genavir, and imagines, designs and deploys leading edge technological means to solve the ocean's mysteries.
Join our teams, made up of 1500 scientists and research support staff, present all along the coastal areas of France and French overseas territories.
www.ifremer.fr
Infos complémentaires
What are your benefits?
- We have a teleworking agreement and our staff have 12 comp time days and supra statutory leave.
- We allocate a significant budget to developing skills, through individual or collective training actions.
- We have a CSR policy inspired by the purposes of the institute (sustainable mobility allowance, etc.)
What are the next steps?
- Initial pre-qualification via video conference or phone call.
- Interview with technical and HR partner
- Interview with the supervising team
- Final application approval
