Network and Security Administrator Consultant

METALINE

Administrateur réseau et sécurité chez Metaline, ESN spécialisée en infogérance, services managés et Digital Work Place. Administration LAN/WAN/WLAN, firewalls et infrastructures complexes pour un client stratégique.

Posted 8/10/2026contractBondoufle • 🇫🇷 FranceMid-LevelSenior💰 €58,000 - €71,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in administering complex network and security infrastructures, including hands-on experience with Extreme Networks, Aruba, and Cisco technologies. Proficient in incident management, automation using Ansible, and effective communication with internal and external stakeholders.

Highest-signal resume keywords

L2/L3 SupportNetwork AdministrationAnsible AutomationIPAM ManagementFortinet and Palo Alto Expertise

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Network AdministrationIncident ManagementBGPPBRSD-WANExtreme NetworksArubaCiscoFortinetPalo Alto

Soft Skills

Interpersonal SkillsAnalytical MindsetRigorFlexibility

Tools & Technologies

LANWANWLANFirewallsLoad BalancersProxiesAruba ClearPassAruba CentralAruba AirWaveCMDB

Industry Keywords

NetworksTelecommunicationsComputer ScienceTechnical Architecture DocumentOperational Procedures

Tech Stack

Tools & technologies

Ansible

About the role

Key responsibilities & impact

Provide L2/L3 support, diagnose and resolve incidents to keep networks operational
Open and track tickets with vendors and operators
Write and maintain incident procedures
Administer and monitor LAN/WAN/WLAN and security infrastructures, including firewalls, load balancers and proxies
Manage equipment lifecycle and IPAM
Contribute to automating operational tasks using Ansible
Handle business change requests
Provide technical expertise for infrastructure projects
Manage network interconnections and replacement of end-of-life equipment
Write and update operational procedures, runbooks, DEX and network diagrams (L1 to L3)
Participate in the preparation of the DAT (Technical Architecture Document)
Act as an interface between internal teams, application teams and external partners/operators

Requirements

What you’ll need

Bachelor's or Master's degree in Networks, Telecommunications or Computer Science
Mid to senior profile with 4 to 10 years' experience administering complex network and security infrastructures
Strong hands-on experience with Extreme Networks (LAN), Aruba and Cisco (WLAN)
Proven expertise with Fortinet and Palo Alto
Solid experience with BGP, PBR and SD-WAN
Knowledge of Aruba ClearPass, Central and AirWave
Familiarity with automation using Ansible
Experience with IPAM/CMDB management
Strong interpersonal skills to liaise between internal teams, application teams and external partners/operators
Analytical mindset, rigor and ability to quickly diagnose complex incidents
Flexibility to provide on-call coverage and perform interventions outside business hours (OOH)
Professional working proficiency in English

Benefits

Comp & perks

Flexibility to provide on-call coverage and perform interventions outside business hours (OOH)