The NGT Real-time Reconstruction Revolution will transform the CMS High-Level Trigger into an offline-quality reconstruction facility processing up to 750 kHz of events. To make this sustainable, you will lead the design of two complementary data tiers: a low-level reconstructed format that enables trigger rates several times higher than conventional raw-data output while preserving the the option for future reprocessing, and a compact analysis format to save the full 750 kHz stream of online reconstructed events.
Your responsibilities
- Design next-generation data structures that push the limits of data reduction while preserving physics performance and analysis flexibility.
- Ensure all formats are accelerator-native (e.g., structure-of-arrays, SoA) and optimised for high-throughput GPU processing.
- Build an end-to-end framework to rigorously quantify the impact of lossy compression, with clear metrics, reference analyses, and automated regression tests.
- Benchmark compression/decompression under realistic workloads: CPU/GPU cost, I/O throughput, memory footprint, and latency.
- Advance lossless compression, leveraging R3-reconstructed objects and pioneering AI/ML techniques.
- Improve raw data structure to achieve higher compressibility and faster data access.
Be sure to meet the eligibility criteria
- By the application deadline, you have a master’s degree with 2 to 6 years of professional experience since graduation or a PhD with a maximum of 3 years of professional experience since graduation. You are not eligible with only a bachelor’s degree.
- You have never had a CERN fellow or graduate contract before.
- Please pay attention to the additional criteria and requirements for this specific position and mentioned above.
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Data Reduction Physicist in Genf Arbeitgeber: Big Science Sweden
CERN ist ein hervorragender Arbeitgeber, der seinen Mitarbeitenden die Möglichkeit bietet, an vorderster Front der wissenschaftlichen Forschung zu arbeiten. Mit einem inspirierenden Arbeitsumfeld in Genf fördert CERN eine Kultur der Zusammenarbeit und Innovation, während es gleichzeitig umfangreiche Weiterbildungsmöglichkeiten und Karriereentwicklung bietet. Die einzigartige Gelegenheit, mit führenden Wissenschaftlern zusammenzuarbeiten und Zugang zu erstklassigen Forschungsanlagen zu haben, macht CERN zu einem attraktiven Arbeitsplatz für alle, die eine bedeutungsvolle Karriere in der experimentellen Physik anstreben.
