5 Dec 2025
Job Information
- Organisation/Company
La Rochelle Université- Research Field
Computer science » Programming
Computer science » Database management- Researcher Profile
Recognised Researcher (R2)- Positions
Postdoc Positions- Country
France- Application Deadline
31 Dec 2025 - 20:00 (Europe/Paris)- Type of Contract
Temporary- Job Status
Full-time- Offer Starting Date
2 Mar 2026- Is the job funded through the EU Research Framework Programme?
Not funded by a EU programme- Is the Job related to staff position within a Research Infrastructure?
No
Offer Description
La Rochelle University is recruiting within the LIENSs Laboratory a 1-year postdoc or a research engineer to improve the numerical modelling of nature-based solutions in coral reef and saltmarsh environments using the numerical modelling system SCHISM.
Key words: numerical modelling, numerical methods, nature-based solutions, saltmarsh, coral reefs.
Employer and hosting lab description
In a higher education and research landscape that has been profoundly reshaped for more than a decade, La Rochelle Université has chosen to structure its research around a thematic by positioning its scientific and academic strengths on societal and environmental issues. This approach has led to the creation of a teaching and research institute called the LUDI Institute, SmUCS in English (Smart Urban Coastal Sustainability), operational since the 1st September 2021.
Website to consult: click here
Research context / Description of the research project
Coastal risks are increasing due to ongoing climate changes combined with the growing attractivity of coastal zones, calling for a better understanding of underlying processes and the development of adaptation solutions. In the scope of the research projects La Rochelle Territoire Zéro Carbone 2040 (LRTZC hereafter) and PPR Océan et climat FUTURISKS, we are studying the effects of coastal vegetation and coral reefs on wave dissipation and mitigation of extreme sea levels and flooding, combining field observation and high-resolution numerical modelling. However, the high computional cost associated with the numerical modelling approaches that we use at LIENSs (SCHISM modelling system ; Zhang et al., 2016), partially developed at LIENSs (e.g. Bertin et al., 2020; Martins et al., 2022), prevents the performance of simulations on sufficiently-long time scales to assess the impacts of climate change. In this context, we are exploring solutions to improve the numerical efficiency of SCHISM when applied to coastal environments characterized by very rough bottom.
Missions of the postdoc/research engineer
In order to meet with the scientific objectives described above, we are hiring a 1-year postdoc or research engineer to improve the numerical efficiency of the modelling SCHISM. For coral reef environments, the improvements will concern the implicit treatment of vertical mixing terms in the circulation model, already implemented for vegetation, but that will deserve adaptations and verifications, namely against comprehensive field experiments collected in the scope of the project FUTURISKS. For saltmarsh environments, efforts will focus on the morphodynamic module of SCHISM, which enables to simulate the coupled evolution of the seabed and the salt marsh. In fact, solving an advection-diffusion equation for different sediment grain sizes and vertical levels rapidly dominates the computational time and does not currently allow to perform numerical simulations over more than a few years (e.g., Bertin et al., 2020). Alternative methods such as the Eulerian-Lagrangian Method (ELM), which remain stable with much larger time steps, will be explored. For these two projects, the GPU-based version of SCHISM under development will also be tested.
Type of recruitment
12-month postdoctoral contract based in La Rochelle (17) in the LIENSs Laboratory
If the candidate obtained his/her doctorate less than three years ago, a postdoctoral contract may be offered. After 3 years, an equivalent contract will be offered.
Salary: about ~€2569.69 gross per month, depending on the level of qualification.
Contact for information on the position to be filled
Xavier Bertin ( xbertin@univ-lr.fr ) and Kevin Martins (kmartins@univ-lr.fr )
Where to apply
- Website
- https://recrutement.univ-lr.fr/filo2/login
Requirements
- Research Field
- Computer science
- Education Level
- PhD or equivalent
Skills/Qualifications
We are seeking a highly-motivated candidate, skilled in numerical model development (programming in FORTRAN, numerical methods, HPC environment). Experience in numerical methods on unstructured grids and/or GPU would be strong assets.
Internal Application form(s) needed
Postdoc_LRU_Model_SFN_VE.pdf
English
(84.15 KB - PDF)
Download
Additional Information
Selection process
How do I apply?
Your application must include:
- Cover letter
- detailed curriculum vitae
- copy of highest diploma
This application must be submitted using the dedicated application accessible by clicking here (Job reference: RECH/LIENSs/25-17).
INCOMPLETE APPLICATIONS OR THOSE SENT BY E-MAIL WILL NOT BE CONSIDERED.
Recruitment process:
After a review of the applications, selected candidates will be invited to an interview, preferably in person but through visioconference for foreign candidates who cannot travel to France.
Please note that the position if located in a sector where scientific and technical potential are protected and therefore requires, in accordance with the regulations, that the arrival of the candidate recruited be authorised by the competent authority of the French Ministry for Higher Education and Science (MESR).
- Application deadline: 31/12/2025
- Starting date: March 2026
Work Location(s)
- Number of offers available
- 1
- Company/Institute
- La Rochelle Université
- Country
- France
- State/Province
- Nouvelle Aquitaine
- City
- LA ROCHELLE
- Postal Code
- 17000
- Street
- 21 avenue Albert Einstein
- Geofield
Contact
- State/Province
Nouvelle Aquitaine- City
La Rochelle- Website
https://www.univ-larochelle.fr- Street
23 avenue Albert Einstein, BP 33060- Postal Code
17031
pierre.labardin@univ-lr.fr
STATUS: EXPIRED
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