Research engineer in scientific computing (M/F)
- IT in FTC
- 24 mounth
- Doctorate
This offer is available in English version
This offer is open to people with a document recognizing their status as a disabled worker.
Offer at a glance
The Unit
Laboratoire Jacques-Louis Lions
Contract Type
IT in FTC
Working hHours
Full Time
Workplace
75252 PARIS 05
Contract Duration
24 mounth
Date of Hire
01/10/2026
Remuneration
between €2,847.42 and €3,620.32 gross per month, depending on experience
Apply Application Deadline : 14 March 2026 00:00
Job Description
Missions
This research engineer position in scientific computing is associated to the ERC Synergy project PSINumScat "Phase-space-inspired numerical methods for high-frequency wave scattering: from semiclassical analysis through numerical analysis to implementation".
The design of fast and reliable algorithms for the numerical simulation of high-frequency acoustic and electromagnetic waves is a longstanding open problem in computational mathematics. These waves underpin a plethora of communication and imaging technologies such as medical imaging, therefore any progress towards solving this problem will have wide impact. This international project aims to design, analyse, and implement new methods that are faster and more reliable than the current state of the art, by exploiting techniques from semiclassical analysis, an area of pure mathematics specifically designed to study high-frequency problems. This will be achieved by combining expertise of the three partner teams of the project in semiclassical analysis (led by Jeffrey Galkowski, professor at University College London), numerical analysis (led by Euan Spence, professor at University of Bath) and scientific computing (led by Pierre-Henri Tournier, research engineer at Laboratoire Jacques-Louis Lions).
The hired person will work under the direction of the scientific computing team of Laboratoire Jacques-Louis Lions in Paris, in close collaboration with the researchers and post-doctoral fellows of the project at University of Bath and University College London, and will be tasked with developing and implementing new efficient numerical methods for high-frequency wave propagation problems in the finite element open-source software FreeFEM developed at Laboratoire Jacques Louis Lions.
Activity
- Take part in the design, and implement innovative methods for the numerical solution of wave propagation problems within the FreeFEM software, using high-performance computing
- Optimize the code for performance
- Integrate the new methods in the high-level domain-specific language (DSL) of FreeFEM to facilitate their adoption and use by non-specialist users
- Test and validate the methods, including on benchmarks arising from seismic and medical imaging applications
Your Profil
Skills
- Experience in software development and optimization of scientific codes
- Expertise in modern C++ development
- Proficiency in version control tools (git)
- Knowledge of at least one of the parallel programming paradigms (MPI, OpenMP, GPU)
- Proficiency in both spoken and written English is essential (work will be carried out in close collaboration with the UK partners)
Knowledge or experience in one or more of the following areas will also be appreciated:
- Code performance analysis and debugging tools for parallel applications
- The finite element method
- Domain decomposition methods
Your Work Environment
The research engineer will be hired within the Jacques-Louis Lions Laboratory located 4 place Jussieu in Paris. The laboratory, established in 1969, is named after its founder Jacques-Louis Lions. It is a joint research unit with Sorbonne University, University of Paris and the French National Centre for Scientific Research (CNRS). The Jacques-Louis Lions Laboratory is the largest laboratory in France and one of the leading ones in the world for training and research in applied mathematics. It hosts activities of two second-year masters, which represent around one hundred students. Its areas of research cover analysis, modeling, and high-performance scientific computing for a variety of phenomena represented by partial differential equations (PDEs). With approximately 100 professors, researchers, engineers, administrative staff, and as many doctoral or post-doctoral students, the laboratory engages with the economic world and various scientific areas across a wide array of applications: fluid dynamics ; theoretical physics, mechanics and chemistry ; control, optimization and finance ; medicine and biology ; signal and data processing. The recruited person will join the scientific computing team of the laboratory and will also be associated to the INRIA Alpines team, a joint research group between INRIA and LJLL which focuses on high performance scientific computing.
Compensation and benefits
Compensation
between €2,847.42 and €3,620.32 gross per month, depending on experience
Annual leave and RTT
44 jours
Remote Working practice and compensation
Pratique et indemnisation du TT
Transport
Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€
About the offer
| Offer reference | UMR7598-PIETOU-005 |
|---|---|
| Line of business | IT, Statistics and Scientific Calculation |
| Job Type | Scientific Calculations Expert |
About the CNRS
The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.
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