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Mehdi ZiataMZ

Mehdi Ziata

System, Network & Security Engineer

€300/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mehdi

Graduated with a Master's degree in Cybersecurity, Networks, and Cloud, I assist companies in securing, migrating, and maintaining their infrastructures in a secure condition (MCS). With experience at a Private Cloud hosting provider, I am familiar with high availability challenges and ISO 27001 standard requirements.
As a Level 3 Debug Specialist, I primarily focus on perimeter security components and complex network architectures.
My areas of intervention:
• Perimeter Security & Firewalling:
Migration & Integration: Advanced expertise in migrating physical clusters to virtualized instances (Fortinet, Palo Alto, Checkpoint MDS).
Centralized Management: Proficiency in FortiManager, FortiAnalyzer, and FortiNAC administration tools.
Traffic & Access: IPsec/SSL VPN configuration, advanced filtering policies, and Cloud Proxy via Zscaler (ZIA).
• Network & Datacenter Infrastructures: Cisco Nexus network core migration, Cisco Meraki administration, and Unifi WiFi infrastructure.
Deployment of automatic equipment configuration backup solutions.
• Application & System Migration: Migration of Web services (Apache, MySQL, PHP stack) to VMware ESXi environments.
Advanced Windows Server (Active Directory, GPO) and Linux (Debian, Ubuntu, CentOS) administration.
• Hybridization & Patch Management:
Compliance and update management via Azure Update Manager and Azure ARC for hybrid environments.
Global supervision via Centreon.
Notable achievements:
• Migration of critical firewall clusters (Fortinet/Palo Alto) for video surveillance networks and Cloud infrastructures.

My approach places security at the heart of every infrastructure project, ensuring maximum protection from the design phase.
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Basic

Can work on-site
Paris (up to 50km)

Experience

  • Almond
    Production Systems and Networks Engineer
    DIGITAL AND IT
    September 2023 - Today (2 years and 11 months)
    Sèvres, France
    Expert in operational maintenance (MCO/MCS) for a broad client portfolio, I work on hybrid environments (OnPrem/Azure). Specializing in Level 3 support, I ensure the high availability of infrastructures through firewall cluster integration, patch management automation, and system hardening. Responsible for service continuity, I manage the deployment of backup and supervision solutions while drafting associated technical documentation (DAT/DEX).
    Microsoft Azure Checkpoint Fortinet Cisco Meraki Linux
  • Spie ICS
    Systems and Networks Technician
    DIGITAL AND IT
    September 2021 - August 2023 (2 years)
    Issy-les-Moulineaux, France
    1. User Support and Ticketing
    • Incident Management: Receiving, qualifying, and resolving tickets via the management tool (ITSM).
    • On-site Intervention: Physical workstation assistance (hardware, software, peripherals).
    • Reporting: Documenting interventions and enriching the knowledge base.
    2. Systems Administration (AD & Cloud)
    • Active Directory: Managing user accounts, security groups, and applying basic GPOs.
    • Exchange Online (M365): Creating mailboxes, managing aliases, distribution lists, and troubleshooting Outlook.
    • Deployment: Imaging and installing workstations (WDS, Autopilot, or MDT).
    3. Networks and Security
    • Firewalling: First-level administration of Sophos and Palo Alto solutions (managing simple filtering rules, remote VPNs).
    • Cisco Switching: Cabling, configuring VLANs, and diagnosing connectivity on Cisco equipment

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Education

  • Master's in Cybersecurity, Networks, and Cloud
    Efrei
  • Bachelor 3 - Cybersecurity & Ethical Hacking
    Efrei
    2024

Skill set (11)

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