Cedric Cellier
Founder at securactive
Karlsruhe, Baden-Württemberg, France
Summary
👤
Senior🎓
Top SchoolCedric Cellier is a founder and seasoned software engineer with 26 years of experience building reliable, low-level networking and backend systems. Currently leading CloudyWithAChanceOfLatency and freelancing from Karlsruhe, he focuses on network monitoring tools inspired by deep kernel and UNIX expertise. His career spans roles at Accedian, Booking.com and Google where he designed alerting pipelines and improved large-scale provisioning and observability. An active contributor to libpcap, he implemented secure RPCAP transport using OpenSSL, bringing practical cryptography to packet capture tooling. Trained in post-graduate physics, Cedric blends rigorous systems thinking with an entrepreneurial drive—his professional goal is as ambitious as building a rocket to Mars, reflected in projects that aim for similarly audacious impact.
26 years of coding experience
5 years of employment as a software developer
1y post graduate, Physics, 1y post graduate, Physics at Université Orsay / Evry
Stackoverflow
96reputation
9kreached
5answers
1question
Github Skills (18)
ss10
ssl10
sslv310
c1110
c1710
openssl10
libpcap10
networking9
security9
cvc46
deprecated6
smt6
vim6
functional-programming6
sml6
Programming languages (18)
Github contributions (5)
the-tcpdump-group/libpcap
May 2018 - Jun 2018
the LIBpcap interface to various kernel packet capture mechanism
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 commits, 4 PRs, 25 comments in 16 days
Contributions summary:Cedric primarily contributed to the `libpcap` project by implementing and enhancing features related to remote packet capture (RPCAP). They introduced SSL/TLS encryption for both the control and data sockets, enabling secure communication. Furthermore, the user worked on integrating OpenSSL for cryptographic functionalities and addressed minor code issues related to file descriptors and compression within the RPCAP framework.
bpfkernelmechanismbsd-packet-filternetwork-tools
PerformanceVision/ramen-configurator
Apr 2018 - Nov 2019
Generates the configuration for Ramen from a configuration database.
Contributions:3 PRs, 299 pushes, 12 branches in 1 year 8 months
configurationconfigdatabaseramen
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