Cyril Peponnet
Principal Engineer, AI Security at Proofpoint
Mountain View, California, United States
Summary
👤
Senior🎓
Top SchoolCyril Peponnet is a Principal Engineer specializing in AI security with 13+ years of cross-domain experience in virtualization, Linux systems, and cloud-native infrastructure. Based in Mountain View, he has driven security and platform initiatives at organizations from Palo Alto Networks to Proofpoint, blending deep systems knowledge with practical automation using Puppet, Salt, and Ansible. An active open-source contributor, Cyril has made substantive back-end enhancements to the Archipel XMPP-based orchestrator, notably improving Xen paravirtualized guest management and UI bootloader handling. His toolbelt spans Golang, Python, shell scripting, containers (Docker, runc, LXC), and storage tech like GlusterFS, enabling him to bridge low-level OS internals and scalable orchestration. Colleagues rely on his curiosity-driven approach to debug complex IoT and M2M interactions where Linux/Unix act as the common nexus. He combines hands-on engineering with a penchant for pragmatic security design, often surfacing niche hypervisor and boot-time edge cases before they affect production.
13 years of coding experience
18 years of employment as a software developer
Engineer's degree, Industrial Engineering, Engineer's degree, Industrial Engineering at EIGSI - École d'ingénieurs généralistes
French, English
Stackoverflow
3reputation
937reached
0answers
1question
Github Skills (12)
libvirt10
virtualisation10
virtual-hosts10
virtual-machine10
python10
virtualization10
user-interface8
human-interface8
graphical-user-interface8
recursion6
merge6
dictionary6
Programming languages (17)
Github contributions (5)
ArchipelProject/Archipel
Sep 2012 - Nov 2016
XMPP Based Orchestrator
Role in this project:
Back-end Developer
Back-end DeveloperContributions:417 commits, 14 PRs, 57 pushes in 4 years 2 months
Contributions summary:Cyril primarily contributed to the Archipel project by implementing and enhancing core functionality related to virtual machine management, specifically focusing on Xen paravirtualized guests. The user added features to the user interface to handle bootloader and bootloader arguments for XEN guests. They also made modifications to the model classes related to domain and operating system types, including adding a fix to handle the specifics of Xen guests in an effort to ensure the project correctly interacts with this type of hypervisor.
orchestratorxmppiot
CyrilPeponnet/ANSOS-NG
Jul 2014 - Oct 2017
Contributions:62 commits, 4 PRs, 21 pushes in 3 years 3 months
next-generationjavascriptnodejsstateless
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