Martial Puygrenier
Senior Security Engineer at Lucca
Aix-en-Provence, Provence-Alpes-Côte d'Azur, France
Summary
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Rockstar🎓
Top SchoolMartial Puygrenier is a Senior Security Engineer with 12 years of hands-on experience in offensive and defensive security, specializing in Active Directory hardening, purple teaming, and SIEM tuning. A Master’s graduate in Cryptography & IT Security, he combines deep protocol-level Python work—contributing to notable projects like Impacket and CrackMapExec—with practical enterprise remediation at companies such as Lucca. He’s a certified Red Team Operator, creator of the Hack'n Speak podcast, and an accomplished bug-fixer who has driven Python 3 migrations and Kerberos/SMB enhancements in widely used pentesting tools. Martial’s background spans full-scope pentests, incident response, and automated devops security, and he brings a pragmatic lens to detection engineering informed by frequent real-world breach simulations.
12 years of coding experience
6 years of employment as a software developer
Master 1-2, Cryptographie et Sécurité Informatique, Master 1-2, Cryptographie et Sécurité Informatique at Université de Bordeaux
Stackoverflow
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youtube-data-api
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Github Skills (36)
debug10
python10
kerberos10
youtube-api10
it-security10
authentication10
authenticate10
smb10
youtube10
security10
active-directory10
network-protocol10
encoding10
impacket10
pentesting10
Programming languages (18)
Github contributions (5)
byt3bl33d3r/CrackMapExec
Nov 2019 - Jan 2023
A swiss army knife for pentesting networks
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:5 releases, 17 reviews, 445 commits in 3 years 2 months
Contributions summary:Martial primarily contributed to the `cme/protocols/smb.py` file, which likely involved security-related functionality. They made updates to address Python3 migration, implemented features such as file transfer functionalities (`put_file`, `get_file`), and added support for kerberos authentication, which involved intricate changes to SMB connection logic, handling of credentials, and incorporation of security features. The commits show enhancements to share enumeration, session management, and also modifications to enhance the security measures for LAPS (Local Administrator Password Solution).
swisspythonwindowsnetworksarmy
fortra/impacket
Nov 2019 - Jun 2022
Impacket is a collection of Python classes for working with network protocols.
Role in this project:Back-end Developer
Back-end DeveloperContributions:1 review, 8 commits, 10 PRs in 2 years 7 months
Contributions summary:Martial primarily contributed to bug fixes and improvements within the Impacket library, which focuses on network protocol implementation in Python. Their work addressed issues related to data type handling, encoding problems, and compatibility with newer Python versions and server configurations. The user also integrated external changes and implemented enhancements to improve the functionality of the library. These contributions show a focus on the core functionality of the library and maintaining its compatibility and performance.
pythonwmipass-the-hashnetconfclasses-python
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