Network Engineer

Project overview

Context of the mission

As part of the evolution and operation of a critical network environment, we are looking for a Senior Network Engineer to join a team responsible for the architecture, production, monitoring, and supervision of highly available network infrastructures.

You will work within a demanding international environment, supporting high-performance activities with strict requirements for availability, security, and low latency.

The infrastructure covers several campuses, data centers, and strategic hosting sites.

Your missionsNetwork Architecture & Design

Infrastructure Deployment & Evolution

Operation & Supervision

Continuous Improvement

Collaboration & Documentation

Incident Management

Profile sought

Work environment

Networks & Protocols

Tools

Desired qualities

Languages

• Design and document network architectures for Data Center, Campus, and critical infrastructure environments.
• Produce detailed design documents and associated technical recommendations.
• Participate in architectural choices around the following protocols and technologies: OSPF, BGP, VXLAN-EVPN, DWDM, Multicast, NAT, and Low Latency architectures.
• Configure and provision network equipment and services.
• Lead migration, production, upgrade, and cut-over operations.
• Ensure service continuity and limit impacts during technical changes.
• Ensure the operational maintenance of a 24/7 network infrastructure.
• Monitor network performance and availability using monitoring tools.
• Analyze incidents, conduct technical investigations, and lead remediation actions.
• Participate in post-incident reviews and continuous improvement initiatives.
• Define and track service performance and quality indicators: availability, latency, jitter, packet loss.
• Be proactive in proposing architectural evolutions, routing policies, and supervision tools.
• Contribute to the overall optimization of network infrastructures.
• Work in close collaboration with infrastructure, security, and application teams.
• Keep technical documentation and network architecture diagrams up to date.
• Participate in the coordination of technical activities with various stakeholders.
• Participate in the team's on-call rotation.
• Intervene on network incidents in accordance with established processes.
• Experience in enterprise or critical network infrastructures.
• Solid expertise in high-availability production environments.
• Significant experience in the design, operation, and transformation of complex network infrastructures.
• Ability to work in demanding technical environments with high availability stakes.
• TCP/IP
• LAN
• BGP
• VRF
• NAT
• DWDM
• Spanning Tree
• 802.1X
• Python
• Zabbix
• Grafana
• SNMP
• Syslog
• Service and support orientation
• Rigor and analytical skills
• Audit and continuous improvement mindset
• Autonomy in delivery and deployments
• Excellent follow-up and coordination skills
• Professional English required.

Project details

• Start: ASAP
• Duration: 6 mois renouvelable
• Location: Seine-Saint-Denis, France, FR
• Languages: French