Freelancer profile translated to English.

Description

Cybersecurity & SecOps Engineer | Incident Response | Microsoft 365 & Azure

Passionate about cybersecurity and information system protection, I have 5 years of field experience acquired through apprenticeships within an IT consulting company.

My career path is marked by constant evolution: I started as a System & Network Technician, then Administrator, before fully specializing in my current role as Cybersecurity & SecOps Engineer. This progression allows me to have a 'defender' vision rooted in a real understanding of hybrid infrastructures.

My areas of expertise include:

Security Operations (SecOps) & Incident Response: Cyber crisis management, attack analysis (phishing), and OSINT/DFIR investigations.

Vulnerability Management & SIEM: Deployment and investigation on Wazuh, Nessus scans, Microsoft Defender alert management, and patch application.

Modern Workplace & IAM: Securing environments (Endpoint Hardening) via Microsoft Intune and managing identity lifecycles on Entra ID (Azure AD).

Governance (GRC): Preparing infrastructures for ISO 27001 audits and facilitating security committees to raise team awareness.

Currently pursuing a Master's degree in Information System Security (Bac+5) at Sup de Vinci, I continue to deepen my technical and strategic knowledge. I am always open to exchanges with other enthusiasts and professionals in the sector!

Feel free to contact me to discuss cybersecurity, infrastructure, or any other tech topic.

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Remote only

Primarily works remotely

MCA
System and Network Technician
August 2021 - August 2023 (2 years)
Levallois-Perret, France
Provided N1/N2 technical support to users
and actively participated in improving the internal infrastructure.

Main missions:
- Diagnosis and resolution of system and network incidents
- Deployment and administration of the FOG cloning tool
for IT park management
- Setup and administration of Passbolt
(open-source password manager)
- Automation of administration tasks via PowerShell
- User support and escalation to N3 teams
IAM Vulnerability Management SIEM Microsoft Defender Crisis Management
MCA
System and Network Administrator
September 2023 - September 2024 (1 year)
Administration and modernization of the company's
systems and networks infrastructure.

Main missions:
- Migration and integration of Microsoft Intune
for park management (MDM/MAM)
- Administration of Microsoft Entra ID
(formerly Azure AD) and identity management
- Deployment and administration of Microsoft Defender
for endpoint security
- Application deployment via Intune across the park
- Scripting and automation of administration tasks
- Work on Microsoft 365 / Azure cloud environment
MCA
Cybersecurity Engineer
September 2024 - Today (1 year and 9 months)
Managed operational security and implemented
a complete cybersecurity infrastructure.

Main missions:
- Deployment and administration of a SIEM (Wazuh)
including scripting of custom detection rules
- Vulnerability management: internal audits with Nessus,
PingCastle, Purple Knight — analysis, prioritization, and remediation
- Patch management automation (AutoPatch)
and automated comparative report generation
- Endpoint hardening: LAPS deployment,
security policies
- Risk analysis, exception management,
and incident/vulnerability traceability
- Technological watch with automatic comparison
of CVEs vs server park
- Drafting and application of security policies

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Mehdi Guendouz

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