Jonathan-christofer Demay
Information Security Expert And Penetration Tester
Greater Bordeaux Metropolitan Area France
Summary
👤
Senior🎓
Top SchoolJonathan-christofer Demay is an information security expert and penetration tester with 17 years of experience blending academic research and hands-on consulting for strategic industries and government bodies. He holds a PhD in Computer Science and has published work on vulnerability research, IDS bypassing, and advanced intrusion detection, bringing rigorous, research-driven methods to incident response, forensics, malware analysis, code reviews and social engineering engagements. Currently leading offensive security at ArianeGroup after senior roles at Airbus Defence and Space and consultancy stints, he excels at translating complex attack techniques into actionable defense and remediation. He also contributes to open-source ecosystems—patching scientific software in the Gentoo Science Overlay—demonstrating an attention to reproducible tooling and platform compatibility that complements his adversary-first mindset.
17 years of coding experience
8 years of employment as a software developer
Master's degree, Computer Engineering, Master's degree, Computer Engineering at École d'Ingénieurs Polytechnique de l'Université de ToursPh.D, Computer Science, Ph.D, Computer Science at SUPELECMaster's degree, Computer Science, Master's degree, Computer Science at Laboratoire d'Informatique de l'Université de ToursMaster's degree, Business Administration, Master's degree, Business Administration at Institut d'Administration des Entreprises de ToursBachelor's degree, Telecommunications Engineering, Bachelor's degree, Telecommunications Engineering at Institut Universitaire de Technologie de Blois
French, English
Github Skills (8)
gentoo10
overlay10
science10
overlays10
ebuild10
patch10
ocaml8
makefile8
Programming languages (2)
Github contributions (3)
gentoo/sci
May 2009 - Jul 2014
[MIRROR] Gentoo Science Overlay
Role in this project:
Back-end Developer
Back-end DeveloperContributions:113 commits in 5 years 3 months
Contributions summary:Jonathan-christofer contributed patches to the Gentoo Science Overlay repository, primarily involving updates and fixes for scientific software packages. These changes include modifications to patch files for the Frama-C and PVS software, suggesting a focus on building and integrating these tools within the Gentoo environment. The user also updated files related to the OCamlGraph library, including changes to makefiles, indicating maintenance and compatibility efforts. The work focuses on ensuring the proper functioning of scientific software within the Gentoo ecosystem.
ebuildgentooscienceoverlay
yrz/scapy-radio
Dec 2015 - Dec 2016
Contributions:7 commits in 1 year
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