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Mohamed SalemMS

Mohamed Salem

Systems and Networks Engineer

€400/day
Douai, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mohamed

CCNA Certified Systems & Networks Engineer – Connectivity & Infrastructure Expert

With over 7 years of experience and 4,200 field interventions, I support companies in the design, deployment, and security of their network and system infrastructures.

Through my SIMET project, I offer a unique hybrid expertise: a strategic engineer's vision (Master 2) combined with proven operational responsiveness.

How I can help you:

Audit & Wireless: Performing WiFi Site Surveys (active/passive), optimizing RSSI coverage, and resolving interference issues for critical environments (warehouses, offices, retail).

Network Infrastructure: Configuring and deploying Cisco (CCNA), Fortigate equipment, and 4G/5G failover solutions (Cradlepoint).

Systems Administration: Managing Windows Server, Linux (Debian/Ubuntu) environments, and virtualization.

Maintenance & Security: Implementing VPNs, managing firewalls (Fortigate, PfSense), and network monitoring (Nagios/GLPI).
  • French

    Native or bilingual

  • English

    Fluent

  • Arabic

    Native or bilingual

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

Experience

  • SIMET / ERT-Technologies
    Systems and Networks Operations Manager
    TELECOMMUNICATIONS
    January 2021 - Today (5 years and 5 months)
    59810 Lesquin, France
    Field expert responsible for deploying and maintaining critical infrastructures. I have carried out over 2,200 complex technical interventions for multi-site clients.

    Network: Installation, configuration, and troubleshooting of routers and switches (Cisco, Juniper, Nokia). Expertise in high-density WiFi deployment and LTE/5G solutions (Cradlepoint).

    Infrastructure: Cabling of racks, fiber optic connections, and commissioning of network equipment.

    Diagnostics: Use of spectrum analyzers and measurement tools for Level 2 and 3 incident resolution.

    Management: Full autonomy in schedule management and immediate technical reporting.
  • FOD / ERT-Technologies
    IT and Telecom Network Technician
    TELECOMMUNICATIONS
    January 2017 - January 2021 (4 years)
    59810 Lesquin, France
    Network operations specialist with a history of over 2,000 successful interventions.

    Technical Support: Preventive and corrective maintenance of communication systems.

    Connectivity: Installation and configuration of enterprise connectivity solutions (SD-WAN, VPN, MPLS).

    Quality: Strict adherence to SLAs (intervention deadlines) and client site security procedures.

    Client Relations: Supporting end-users during technological migration phases.
  • Université des sciences et technologies Lille
    VAE
    TELECOMMUNICATIONS
    January 2013 - January 2014 (1 year)
    Lillers, France
    Rigorous academic certification process allowing for the attainment of a state diploma based on professional expertise acquired in the field.

    Skills Analysis: Writing a detailed technical report demonstrating mastery of complex network architectures and telecommunication systems.

    Jury Defense: Validation by a jury of experts and academics of my ability to design, manage, and secure large-scale network infrastructures.

    Equivalence: This step officially confirmed my technical expertise at the Master 2 level (Bac+5) in Communication Systems Engineering.

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Education

  • Cisco CCNA Certification
    2025
    Certification Cisco CCNA
  • Systems, Networks, and Security Administrator Certifications
    OpenClassrooms
    2024
    Certifications Administrateur systèmes, réseaux et sécurité

Skill set

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