Network Engineer (f/m/d)

IVAM Microtechnology Network; France; Hybrid; EUR 55,000 - 85,000; Full time

Job summary

X-FAB France in Corbeil-Essonnes is seeking a Network RUN & Architecture Engineer to join an international industrial group and ensure availability, performance and security of its network and telephony infrastructures.

You will work with local and Group IT teams on operation, security, and evolution of the site's network, contributing to design, deployment, and documentation in a demanding production environment.

Qualifications

• Master's degree in Networking or equivalent.
• Fluent in English and French (written and spoken).
• Proven experience as a Network Engineer with high-availability architectures.
• Strong knowledge of network and system security concepts.

Responsibilities

• Maintain and operate network and telephony infrastructures (Linux/Unix and Windows).
• Monitor performance and capacity; ensure availability and security in a critical environment.
• Provide Level 2/3 incident resolution and root-cause analyses.
• Lead or contribute to LAN, Wi‑Fi, and telephony evolution projects.
• Document configurations, topology, and changes accurately.
• Collaborate with local and Group IT teams on deployments and standards.
• Administer services: DNS, DHCP, Proxy, Radius, PKI, etc.

Skills

Network Engineering

High Availability

Linux/Unix

Windows

Network Security

Documentation

Education

Master's degree in Networking

Tools

CheckMK

Nagios

Elastic Stack

JIRA

Confluence

VMware

Proxmox

Job description

The IT organization of X-FAB France, based in Corbeil-Essonnes, is looking for a Network RUN & Architecture Engineer.

You will join an international industrial group and work closely with the Group IT teams in an environment where infrastructure availability, performance, and reliability are critical business requirements.

In this role, and in close collaboration with both local and global teams, you will contribute to the operation, security, and evolution of the site's network and telephony infrastructures.

Your Responsibilities

Operations (RUN) & Infrastructure Management

• Ensure the operational maintenance of network and system infrastructures (Linux/Unix and Windows).
• Monitor infrastructure performance and capacity indicators.
• Guarantee the availability, performance, and security of infrastructures within a critical industrial environment.
• Provide Level 2/3 support by handling incidents and problem resolution.
• Conduct root cause analyses and implement corrective and preventive actions.
• Manage equipment configurations and backups.
• Monitor infrastructure performance and capacity metrics.
• Administer and enhance network infrastructure services (DNS, DHCP, Proxy, Radius, PKI, etc.).

Projects & Architecture

• Lead or contribute to network evolution projects (LAN, Wi-Fi, telephony).
• Participate in the design and evolution of the site's network architecture.
• Integrate new solutions and ensure their successful deployment into production.
• Provide network expertise for local and Group IT projects.
• Maintain accurate and up-to-date technical documentation.
• Contribute to the continuous improvement of infrastructures and operational practices.
• Participate in the standardization and optimization of network solutions.

Security

• Ensure the security of network infrastructures and data flows.
• Contribute to the implementation of security policies (segmentation, access control, filtering).
• Administer firewalls and security solutions in collaboration with Group Security teams.
• Identify, plan, and deploy security updates and patches for network equipment and services.

Your Profile

• Master's degree (Bac+5) in Engineering or an equivalent qualification, with a specialization in Networking.
• Fluent in both English and French, written and spoken (minimum B2 level).
• Proven experience as a Network Engineer or Network Expert.
• Strong knowledge of high-availability network architectures.
• Good system administration skills in Linux/Unix and Windows environments.
• Solid understanding of network and system security concepts.
• Methodical, rigorous, and well-organized, with a strong sense of responsibility in a demanding production environment.

Technology Environment

Operating Systems: Linux/Unix (CentOS, Ubuntu, AIX), Windows Server
Virtualization: VMware, Proxmox
Networking: Cisco, Fortinet, UniFi Wi-Fi
Telephony: DECT, Asterisk, XiVO, FreePBX
Monitoring: CheckMK, Nagios, Elastic Stack
Tools: JIRA, Confluence