Secure Network Architect: WAN, Wi‑Fi & VPN Expert

Keoni; France; Remote; EUR 55,000 - 85,000; Full time

Job summary

Kéoni Consulting seeks a Network & Security Expert-CDE to secure, modernize, and maintain client infrastructure across LAN, WAN, Wi‑Fi, and VoIP environments. You will design secure, highly available networks and administer firewall, VPN, and switch gear.

You will conduct audits, define VLAN/IP/DHCP/DNS/QoS matrices, manage migrations and failovers, analyze incidents, and coordinate with telecom operators and stakeholders. A CCNP or equivalent and WatchGuard certification are preferred.

Qualifications

• Proven expertise in LAN/WAN networks, routing, switching, VLANs, Wi-Fi, VPNs, QoS, and MPLS.
• Cisco CCNP Enterprise or equivalent certification.
• WatchGuard firewall certification or equivalent and related security certifications are preferred.

Responsibilities

• Conduct network flow, performance, and coverage audits.
• Define and maintain VLAN, IP, DHCP/DNS, QoS, and filtering matrices.
• Design secure and highly available network architectures.
• Administer LAN, WAN, Wi-Fi, VPN, and firewall equipment.
• Manage migrations, failovers, and rollback plans.
• Analyze and resolve network incidents and follow up on corrective actions.
• Coordinate with telecom operators, VoIP provider, and clients’ IT teams.
• Conduct performance, failover, and security testing and user acceptance testing.
• Produce and maintain diagrams, addressing plans, flow matrices, coverage studies, and test reports.

Skills

LAN/WAN networks

Routing & Switching

VLANs

Wi-Fi

VPNs

QoS

MPLS

WatchGuard firewalls

Network monitoring

High availability

Security best practices

Education

CCNP Enterprise or equivalent

WatchGuard certification

Security/ITSM certification asset

Tools

n/a

Job description

Kéoni Consulting seeks a Network & Security Expert-CDE to secure, modernize, and maintain client infrastructure across LAN, WAN, Wi‑Fi, and VoIP environments. You will design secure, highly available networks and administer firewall, VPN, and switch gear.

You will conduct audits, define VLAN/IP/DHCP/DNS/QoS matrices, manage migrations and failovers, analyze incidents, and coordinate with telecom operators and stakeholders. A CCNP or equivalent and WatchGuard certification are preferred.