Clément Notin
Staff Research Engineer at OpenClassrooms
Greater Lyon Area France
Summary
👤
Senior🎓
Top SchoolClément Notin is a Staff Research Engineer at Tenable with 15 years of experience specializing in Active Directory, Entra ID and identity security research. He designs and implements Indicators of Exposure and Attack (IoEs/IoAs) that power Tenable Identity Exposure, acting as a subject-matter expert for product, sales and engineering teams. A former offensive security lead and longtime pentester, he blends hands-on exploit knowledge with production-grade tooling—contributions span famous open-source projects like OWASP Juice Shop, Metasploit, Impacket and Wireshark where he’s improved protocol dissectors, SMB/NTLM flows and resilient tooling. He teaches secure development, mentors students and advises online courses, bringing academic rigour from INSA Lyon and an exchange in security at Luleå University. Known for pragmatic fixes that remove legacy cruft and harden codepaths, he often surfaces non-obvious AD misconfigurations and collection edge-cases that reduce real-world attacker success.
15 years of coding experience
1 year of employment as a software developer
Exchange student Computer and Information Systems Security/Information Assurance, Exchange student Computer and Information Systems Security/Information Assurance at Luleå University of TechnologyBaccalauréat, Baccalauréat at Lycée René Cassin, TarareEngineer's degree (Master level) IT / CS / Software & Hardware Engineering, Engineer's degree (Master level) IT / CS / Software & Hardware Engineering at INSA Lyon - Institut National des Sciences Appliquées de Lyon
French, English, German
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (75)
python10
c1110
security10
c1710
asp-net10
network-protocol10
code-optimization10
javascript10
session-management10
dotnet10
spnego10
uid10
active-directory10
front-end-development10
windows-security10
Programming languages (28)
Github contributions (5)
GhostPack/Seatbelt
Jul 2018 - Oct 2020
Seatbelt is a C# project that performs a number of security oriented host-survey "safety checks" relevant from both offensive and defensive security perspectives.
Role in this project:
Security Engineer
Security EngineerContributions:10 commits, 9 PRs, 4 comments in 2 years 2 months
Contributions summary:Clément primarily contributed to bug fixes, performance improvements, and general code enhancements within the C# project. Their work involved addressing specific vulnerabilities like null pointer exceptions, fixing OS version number detection issues, and improving performance. They also performed code refactoring, implemented exception handling, and addressed minor typos to enhance code quality and maintainability, particularly related to security-oriented host-survey checks.
security-toolshostsecuritydefensive-securitypentest
SpecterOps/BloodHound-Legacy
Aug 2018 - Nov 2020
Six Degrees of Domain Admin
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:17 commits, 24 PRs, 36 comments in 2 years 4 months
Contributions summary:Clément primarily focused on improving the user interface and overall functionality of the application. They fixed a critical bug related to tooltip display and relayout events. They also refactored the search functionality by changing the separator character. In addition, they implemented informative alerts for file processing, enhancing the user experience. Furthermore, they contributed to the documentation, expanding information on data collection flags.
six-degreesadmindomaindegreessix
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.