Senior Network & Security Architect — Hybrid Enterprise

Comgent; Châtillon; Hybrid; EUR 90,000 - 130,000; Full time

Job summary

Comgent is seeking an experienced Network & Security Architect to design, evolve, and govern network architectures across a large hybrid environment (datacenters, 3,500+ remote sites, cloud). The role ensures security, performance, and modernization of the network and security foundation.

You will lead architecture design, set standards, and collaborate with technical teams and vendors to drive migration strategies, risk management, and documentation across global networks.

Qualifications

• Proven experience as Network & Security Architect in large multi-site enterprise environments.
• Strong expertise in routing, switching, firewalling, VPN, SD-WAN, VLANs, load balancing, and hybrid/cloud connectivity.
• Solid network cybersecurity background (segmentation, DMZ design, secure access, resilience).
• Excellent architecture documentation and communication skills.

Responsibilities

• Design and document end-to-end network/telecom architectures: LAN/WAN, VPN, SD-WAN, cloud networking, DMZ, IP telephony.
• Ensure alignment with internal standards and security, availability, and resilience requirements.
• Provide expert guidance to technical and project teams on technology choices, risks, and migration strategies.
• Drive standardization, automation, and industrialization of network solutions.
• Participate in Architecture Boards / Design Authority and maintain the technical reference repository.
• Technical recommendations and decision notes.
• Design Authority presentations.
• Risk and progress reporting.

Skills

Network architecture

Security architecture

Routing

Switching

Firewalling

VPN

SD-WAN

VLANs

Load balancing

Hybrid connectivity

Cloud connectivity

Job description

Comgent is seeking an experienced Network & Security Architect to design, evolve, and govern network architectures across a large hybrid environment (datacenters, 3,500+ remote sites, cloud). The role ensures security, performance, and modernization of the network and security foundation.

You will lead architecture design, set standards, and collaborate with technical teams and vendors to drive migration strategies, risk management, and documentation across global networks.