Ensure operational maintenance (MCO) / provide Level 2 and Level 3 (N2/N3) support for the IT network
Maintain active equipment: routing, switching, IP addressing, VLAN propagation
Manage the opening of communication flows: configure access rules and implement NAT as required
Configure load balancing services: manage IP front-ends and SSL certificates
Implement IPsec/SSL VPN services to secure access
Update technical architecture reference documentation
Participate in technology workshops with vendors: guide and select network evolution solutions
Keep hosting infrastructures operational (RUN)
Upgrade network configurations in accordance with best practices
Investigate and resolve incidents: perform advanced analysis for equipment or service incidents/instabilities
Handle daily tickets: flows, VPN, VLAN, addressing, NAT, PKI, data extraction, etc.
Act as technical expert when liaising with business teams and vendors
Maintain technical documentation: document components and procedures within your scope
Actively participate in the migration to the sovereign cloud: support transfer of VMware vSphere workloads to vCD/NSX infrastructure and maintain a hybrid architecture

Requirements

Master’s degree (Bac +5) or equivalent
Minimum 7 years of operational experience on complex network infrastructures
Networking & security: VLAN, routing, firewall, IPS/IDS
Cisco solutions: SDA, SD-WAN, ISE, WLC
Perimeter security: Fortinet, Stormshield
Cloud proxies: Zscaler Proxy
Centralized IP management: EfficientIP (IPAM, DHCP, DNS)
Automation and scripting: platform management with Ansible / Jenkins
Python development for continuous improvement
LAN/WAN technologies: 802.1Q (Dot1q), EtherChannel, VTP, STP, DTP, FHRP
Traffic engineering: BGP, EIGRP, RIP, OSPF, VRF, PBR, VWP, RPF
Infrastructure services: DHCP, DNS, NTP, FTP/TFTP, NAT, QoS
Cloud skills — AWS: VPC, EC2, Peering, Transit Gateway, Direct Connect, VPG, IGW, NAT Gateway, IAM, Outposts

Benefits

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

network maintenanceLevel 2 supportLevel 3 supportroutingswitchingIP addressingVLANload balancingIPsec VPNPython

Soft Skills

technical expertiseincident resolutiondocumentationcommunicationcollaboration

Certifications

Master’s degree