Cédric Tessier
Staff Security Engineer at Qualcomm
Gentilly, Île-de-France, France
Summary
🤩
Rockstar🎓
Top SchoolCédric Tessier is a Staff Security Engineer with 19 years of deep experience in reverse engineering, vulnerability research, and building instrumentation tools across mobile, cloud, and wireless products. He has led teams and initiatives at Apple, Quarkslab, Sqreen, Microsoft, and now Qualcomm, combining hands-on exploit analysis with production-focused tooling and automated security testing. Notably, he contributes to QBDI, an LLVM-based dynamic binary instrumentation framework, improving integration points like argc/argv handling and pyQBDI documentation. Based in Gentilly, France, he blends academic training in computer engineering with a practical track record auditing basebands and shaping security features in large-scale products.
19 years of coding experience
13 years of employment as a software developer
Diplôme d'ingénieur, Computer Engineering, Diplôme d'ingénieur, Computer Engineering at ESIEA - Ecole d'Ingénieurs en Sciences et Technologies du Numérique
Github Skills (6)
c1710
instrumentation10
c1110
llvm10
reverse-engineering9
debugging8
Programming languages (6)
Github contributions (5)
QBDI/QBDI
Nov 2017 - Oct 2018
A Dynamic Binary Instrumentation framework based on LLVM.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 49 commits, 19 PRs in 11 months
Contributions summary:Cédric primarily contributed to the QBDIPreload tool, enhancing its functionality by adding support for `argc` and `argv` parameters to the `on_main` callback, which allows for better integration with the instrumented program's command-line arguments. They also made adjustments to the code, especially in the validator tool, to include the module name in InstAnalysis. Additionally, the user performed documentation clean-up for pyQBDI, improving the usability of the project.
llvmdbiinstrumentationfridareverse-engineering
nezetic/pirat
Sep 2022 - Nov 2024
PiRat is a ProCo Rat stomp box emulation, redesigned for Eurorack.
Contributions:3 releases, 24 pushes, 1 branch in 2 years 2 months
emulationstomp
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