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Lucas PerezLP

Lucas Perez

Freelance Network & Security Engineer

€450/day
Montpellier, FR
8-15 years

Average response time: 1 hour

About Lucas

Your network infrastructure needs to be secure, reliable, and ready to scale — without interruption.

I'm a Senior Network & Infrastructure Engineer with 9+ years of hands-on experience in complex, multi-site environments. I help companies design, secure, and automate their network infrastructure so their teams can focus on what matters.

What I bring to your project:
→ Network architecture design: LAN/WAN/WiFi, VLANs, redundancy, high availability
→ Network security: PaloAlto & Fortinet firewalls, VPN, NAC, ACLs, URL filtering
→ Routing & switching: Cisco, Aruba (CCNP certified)
→ Automation & scripting: Ansible, Python, Bash, PowerShell
→ Monitoring: Zabbix, PRTG, Centreon
→ Virtualisation: VMware expert
→ Clear documentation and network diagrams (Visio, Lucidchart)

Recent highlights:
— At Hublot (Switzerland), I designed and deployed the full network architecture for a new HQ and production site — LAN, WAN, WiFi, firewalls, full redundancy — with zero downtime in a critical manufacturing environment.
— At Capgemini, I managed network infrastructure for AREVA and CEA — two of France's most security-sensitive organisations.

I onboard fast, work independently, and leave solid documentation behind me.

📍 Available remotely or on-site · France & Switzerland
📬
  • English

    Native or bilingual

  • French

    Native or bilingual

  • Spanish

    Conversational

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

Experience

  • HUBLOT
    Network Manager
    November 2022 - April 2025 (2 years and 5 months)
    Nyon, Switzerland
    - Designed and implemented network architecture for new HQ and
    production site (LAN/WAN/WIFI, firewalls, redundancy)
    - Managed and operated enterprise network infrastructure across
    multiple sites
    - Led network and security projects (PaloAlto firewalling, NAC,
    segmentation)
    - Coordinated external vendors and service providers
    - Ensured high availability and performance across multi-site
    infrastructure (critical production environment)
    - Resolved L2/L3 incidents and improved infrastructure reliability
    PaloAlto IT Architecture Ansible Monitoring Technical project management
  • ILEMGROUP
    ICT Infrastructure Engineer
    September 2019 - November 2022 (3 years and 2 months)
    Geneva, Switzerland
    - Managed IT infrastructure projects for multiple clients (MSP
    environment)
    - Deployed and configured network, systems and storage solutions
    - Worked on routing, switching, firewall and WiFi environments
    - Maintained VMware, Windows, Linux infrastructures
    - Implemented backup, redundancy and high availability solutions
    - Provided L2/L3 support and troubleshooting
    IT Project Management infrastructure project manager Network administration Cisco Linux
  • CAPGEMINI
    Network Engineer
    January 2015 - January 2018 (3 years)
    Bagnols-sur-Cèze, France
    - Managed network infrastructure for critical environments (AREVA /
    CEA)
    - Handled LAN/WAN, firewall and VLAN configurations
    - Performed L2/L3 troubleshooting and incident resolution
    - Participated in project delivery and team coordination
    - Produced technical documentation and reports

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Education

  • Cisco Certifications
    PCNSA
    Cisco Certifications
  • MBA Business Management
    MBWAY MONTPELLIER
    2019
    MBA Business Management

Skill set

Categories