Network and Security Administrator

Job Title: Network and Security Engineer

Location: Paris, France

Hybrid mode: 4 days week (Work from client location)

Years of relevant experience: 12+ years

Overview

The Network and Security Administrator is responsible for the design, administration, and evolution of network infrastructures and their security. The role ensures performance, availability, and security of network services while providing expert-level support in complex environments.

Responsibilities

• Design and evolve network architecture
• Administer network equipment and services
• Manage interconnections and external links
• Implement and operate network security solutions
• Manage remote access solutions and VPNs
• Contribute to monitoring, performance, and availability
• Handle incidents and provide Level 2/3 support
• Produce documentation, procedures, and ensure compliance

Mandatory Skills

• Cisco switches and routers (Catalyst, Nexus 7K/9K, ASR)
• HP network switches
• TCP/IP networking
• Dynamic routing protocols (BGP, OSPF)
• DHCP and DNS services
• Network security solutions (firewalls, filtering)
• NAC solutions (802.1X, EAP, RADIUS, ISE)

Specific Requirements

• Strong expertise in network security and access control
• Ability to work autonomously in hybrid environments
• Strong documentation and reporting skills

Appreciated Skills

• Experience with telecom providers and technologies (MPLS, SD-WAN, EPL, Internet VPN)
• Experience in service supervision and performance monitoring
• Strong troubleshooting and incident management skills