Mateusz Zarucki
CERN Senior Fellow
Vienna, Austria
Summary
👤
Senior🎓
Top SchoolMateusz Zarucki is a CERN Senior Fellow and particle physicist with 10 years of experience building and operating trigger and data-acquisition systems for the CMS experiment, now focused on Next Generation Triggers for the High-Luminosity LHC. He combines hands-on back-end software development—contributing to the widely used cms-sw/cmssw codebase to enable concurrent luminosity-block processing—with leadership of large operational teams and shift training during critical run transitions. His work spans HLT calibration engineering, GPU-accelerated heterogeneous reconstruction, CI/CD and cloud-native deployments for online test stands, and L1 trigger coordination, reflecting a rare mix of physics analysis, real-time systems engineering and production software. Having lived and worked across Europe and the US, he brings international collaboration experience and a proven track record of delivering robust, high-throughput systems under operational pressure. An often-overlooked strength is his ability to translate complex detector and physics requirements into maintainable software and automated operational tooling.
10 years of coding experience
8 years of employment as a software developer
Vienna University of TechnologyMaster of Science - MS, Physics, Second Class Honours (Upper Division), Master of Science - MS, Physics, Second Class Honours (Upper Division) at Imperial College LondonInternational Baccalaureate (IB), International Baccalaureate (IB) at Vienna International SchoolYear in Europe, Physics, Year in Europe, Physics at University of Valencia
Polish, English, Spanish, German, Italian
Github Skills (9)
c-language10
high-energy-physics10
cprogramming-language10
data-format9
data-formats9
cpp8
cms8
cplus8
cer7
Programming languages (3)
Github contributions (5)
cms-sw/cmssw
Dec 2015 - Dec 2021
CMS Offline Software
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 reviews, 26 commits, 25 PRs in 6 years 1 month
Contributions summary:Mateusz contributed to the development of the CMS Offline Software by adding features to produce flat tables for storing generator filter information in the lumi tree. These changes involve modifying existing code and implementing new classes like `SimpleFlatTableProducerBaseLumi` and `LumiSingletonSimpleFlatTableProducer`. The updates also include adapting the code to support processing concurrent luminosity blocks.
cmscernweb-appc-plus-plusbackbonejs
mzarucki/cmssw
Oct 2015 - Dec 2021
CMS Offline Software
Contributions:35 pushes, 47 branches in 6 years 2 months
cmsweb-appbackbonejscockpitansible-collections
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