ph3Job Description /h3 pIn this role, you will develop and improve GPU-accelerated Monte Carlo detector simulation software within the Geant4 team, with a particular focus on optical photon transport. You will contribute to software design and implementation, physics validation against established CPU simulations, performance optimisation, and integration into experimental software frameworks. /p h3Your responsibilities /h3 ul liDesign, develop, and integrate GPU algorithms for optical photon simulation within a Monte Carlo particle-transport framework. /li liCompare and validate GPU simulation results against established CPU implementations. /li liDevelop unit, regression, and physics-validation tests. /li liProfile applications, identify performance bottlenecks, and optimise computational performance. /li liCollaborate with software teams from the Large Hadron Collider experiments to integrate GPU-enabled particle transport into their simulation frameworks. /li liEngage with the international Geant4 collaboration and its user community, particularly in the area of optical photon simulation. /li liContribute to the documentation, maintenance, and long-term quality of the developed software. /li /ul h3Your profile /h3 ul liExperience in developing scientific or physics-simulation software, preferably using modern C++. /li liExperience with GPU programming or software development for heterogeneous computing architectures. /li liExperience with software testing, numerical validation, performance profiling, or optimisation. /li liKnowledge of Monte Carlo methods or experience with particle-transport simulation would be an advantage, particularly in the area of optical photon transport. /li liExperience contributing to collaborative software projects or working within an international scientific environment would be an advantage. /li /ul h3Skills /h3 ul liProgramming languages and technologies: modern C++, CUDA, Python. /li liGPU programming, heterogeneous computing, and performance optimisation. /li liGit and collaborative software development. /li liUnit testing, regression testing, and numerical validation. /li liExperience with Monte Carlo particle-transport codes such as Geant4 would be considered an advantage. /li liDebugging and profiling tools such as gdb, Compute Sanitiser, perf, Nsight Systems, or Nsight Compute would be considered an advantage. /li liSpoken and written English, with a commitment to learn French. /li /ul h3Eligibility criteria /h3 ul liYou are a national of a CERN Member or Associate Member State. /li liYou have a professional background in Physics, Computer Science, or a related (or a related field) and have either: ul libMaster's degree with 2 to 6 years /b of post-graduation professional experience; /li lior a bPhD with no more than 3 years /b of post-graduation professional experience. /li /ul /li liYou have never had a CERN fellow or graduate contract before. /li /ul /p #J-18808-Ljbffr
Detector Simulation Physicist (EP-SFT-2026-152-GRAP) in Genève Arbeitgeber: CERN
CERN in Genf ist ein herausragender Arbeitgeber, der außergewöhnlichen Nachwuchswissenschaftlern die Möglichkeit bietet, ihre eigenen Forschungsprogramme zu entwerfen und zu leiten. Mit einem strukturierten Programm, internationalen Kooperationen und umfangreichen Weiterbildungsmöglichkeiten in einem inspirierenden Umfeld fördert CERN nicht nur die wissenschaftliche Exzellenz, sondern auch das persönliche Wachstum seiner Mitarbeiter. Die großzügigen Vergütungen und umfassenden Vorteile machen die Arbeit in Genf besonders attraktiv für engagierte Forscher.
