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Alexis GonnonAG

Alexis Gonnon

System and Network Administrator

€800/day
Lyon, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alexis

System & Network Administrator with solid expertise in routing (BGP, OSPF), tunneling (IPsec, GRE, VXLAN) and cybersecurity (firewall, Wanguard). Experience in datacenter infrastructure management, IP transit, network supervision (Zabbix, Datadog) and DDoS mitigation. Mastery of Windows Server, Active Directory, GPO, VPN, as well as Cisco, MikroTik, Fortinet and pfSense equipment. I support companies in the design, deployment and security of their IT infrastructures.
  • French

    Native or bilingual

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

Experience

  • JPA CONSULTANTS
    System and Network Administrator
    SOFTWARE PUBLISHING
    June 2025 - May 2026 (11 months)
    Vénissieux, France
    - Deployment and maintenance of VoIP solutions (3CX, Centrex)
    - Fiber deployment (IP configuration, MikroTik routing)
    - IT project management
    - Cloud deployment (Proxmox cluster, backup, routing)
    - Windows server installation and migration (AD, RDS)
    - Hypervisor management (ESXi, Hyper-V, Proxmox)
    - Firewall configuration (WatchGuard, Fortinet, Sophos, Zyxel, OPNsense)
    - O365, Mailinblack, Hornetsecurity administration
    - Network deployment (VLAN, RSTP)
    - VPN configuration (SSL, IPSec)
    - User support, ticketing
    - Operational maintenance
    Proxmox Zabbix
  • SAS CONNECT-IX
    General Manager
    April 2024 - Today (2 years and 2 months)
    Datacenter hosting company. Datacenter Operations: Paris: Interxion PAR-5 (Digital Realty) IP Transit (BGP, GRE, IPv4/IPv6 Routing, OSPF, WAN, SDWAN Filtering Rules) Client Outsourcing: Manage the execution of maintenance services in collaboration with the Domain Manager. Perform cross-connects / on-site interventions as requested by clients. Network traffic analysis with Wanguard (Detection & DDoS Mitigation) Infrastructure systems & networks supervision (Zabbix, Datadog)
    OSPF
  • DELTA-CORE
    Systems and Networks Manager
    April 2021 - April 2024 (3 years)
    France
    Datacenter hosting company. IP Transit (BGP, GRE, IPv4/IPv6 Routing, OSPF, WAN, SDWAN Filtering Rules) Network Management (LAN, WAN) Policy Creation (routing, security, other)

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Education

  • BAC PRO - SN Opt RISC SEPR
    2022
    BAC PRO - SN Opt RISC SEPR
  • BTS SIO - SISR
    SEPR
    2024
    BTS SIO - SISR

Skill set

Categories