Freelancer profile translated to English.
Back to original languageAbout Guillaume
After several years of experience in offensive security, I now wish to put my skills to the service of inspiring companies that are creating the world of tomorrow.
I have a dual profile as a system and network administrator / security expert, allowing me to approach situations from both the attacker's and defender's perspectives, thus providing a constructive and comprehensive view.
I am looking for companies wishing to assess the security of their information system or needing help in administering and securing their assets.
French
Native or bilingual
English
Fluent
Can work on-site
Angers (up to 30km)
Experience
- OKIOK DataSenior IT Security ConsultantDIGITAL AND ITJuly 2018 - March 2020 (1 year and 8 months)Montréal, Canada• Physical intrusions into sensitive sites: CEO's office, board of directors' office, server rooms, "theft" of confidential documents, etc.• "Red team" engagements: compromising targets through all possible means: phishing, Wi-Fi, physical intrusion, rebound from the internet.• Training and mentoring juniors on internal and web/mobile penetration tests.• Conducting cybersecurity awareness sessions.• Creating interactive training content: "CTF" style security challenges.• Active participation in internal documentation for knowledge capitalization.
- DIGITAL SECURITYIS Security AuditorDIGITAL AND ITSeptember 2015 - June 2018 (2 years and 10 months)Paris, FrancePenetration tests:• internal: compromising Active Directory domains, then all company assets (Windows servers, Linux servers, workstations, etc.).• "stealth": intrusion to assess SOC detection capabilities.• web and mobile applications.Security audits:• embedded security systems: badge readers, connected locks, security cameras, physical intrusion sensors.• radio protocols: LoRa, BlueTooth Low-Energy.• architecture audits in complex environments: multi-site data centers, OIV (Operator of Vital Importance).Project management:• supervision of 3 people during a mission for an OIV.Infrastructure administration:• participation in the design and implementation of the company's internal IS.
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Certifications
- Offensive Security Certified ProfessionalOffensive Security2020