Quentin Texier
Pentester at RandoriSec
Rennes, Brittany, France
Summary
🤩
Rockstar🎓
Top SchoolQuentin Texier is a pragmatic pentester and Red Team operator with six years of hands-on experience in offensive security, specializing in advanced adversary simulation and Active Directory attack techniques. Based in Rennes, France, he currently works at RandoriSec while also training engineering students in offensive cybersecurity, bridging field operations and education. His contributions to the Rust-based NH-RED-TEAM/RustHound project show strong systems and Rust programming skills applied to parsing AD security descriptors and improving tooling UX. Quentin’s background spans blue-to-red career moves from security support and engineering to full-time red teaming, giving him a rare appreciation for defensive controls and practical exploitation. Colleagues describe him as a technical operator who pairs methodical engineering with creative attack development.
6 years of coding experience
2 years of employment as a software developer
BAC+2 BTS - Solutions d'infrastructure systèmes et réseaux Mise en réseau de systèmes informatiques et télécommunications, BAC+2 BTS - Solutions d'infrastructure systèmes et réseaux Mise en réseau de systèmes informatiques et télécommunications at Faculté des MétiersBAC+5 Master Sécurité Informatique Sécurité / sûreté de l'information des systèmes informatiques, BAC+5 Master Sécurité Informatique Sécurité / sûreté de l'information des systèmes informatiques at ESGIBAC+3 Bachelor Sécurité Informatique Sécurité / sûreté de l'information des systèmes informatiques, BAC+3 Bachelor Sécurité Informatique Sécurité / sûreté de l'information des systèmes informatiques at Groupe Saint Jean
English, French
Github Skills (10)
active-directory10
rust10
pentest9
redhat9
data-structure9
red9
data-structures9
pentesting9
network8
cross-platform7
Programming languages (3)
Github contributions (5)
NH-RED-TEAM/RustHound
Oct 2022 - Jan 2023
Active Directory data ingestor for BloodHound Legacy written in Rust. 🦀
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:1 release, 41 commits, 9 PRs in 3 months
Contributions summary:Quentin primarily contributed to the core logic of the `rusthound` project, demonstrating proficiency in Rust. They were involved in the creation and modification of various enums and structs, focusing on parsing Active Directory security descriptors (ACLs) and related data structures. Their contributions include implementing functions for analyzing and interpreting security-related information, suggesting a focus on security aspects of the project. The user integrated progress bars in many of the functions to improve the UX.
data-collectoradcspentestbloodhoundactivedirectory
g0h4n/RustHound-CE
Oct 2024 - Mar 2025
Active Directory data ingestor for BloodHound Community Edition written in Rust. 🦀
Contributions:4 PRs, 24 pushes, 2 branches in 4 months
active-directoryadcsbloodhoundbloodhound-cecommunity-edition
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