Network Security Engineer M/F/X - Strasbourg - Freelance

The context

Our client is a large organisation operating in a complex and highly secure network environment, combining on-premise infrastructure and cloud technologies. The network and security teams work on critical perimeters, within a rigorous framework of change management and security rule lifecycle.

The role

The Network Security Engineer is responsible for the configuration, deployment and troubleshooting of network and security equipment, in a demanding multi-technology environment. Position based on site in Strasbourg.

This is a freelance mission with an expected duration of up to 2 years.

Your missions

- Configure, deploy and troubleshoot FortiGate and Checkpoint firewalls

- Configure, deploy and troubleshoot Cisco ACI infrastructures

- Configure, deploy and troubleshoot F5 load balancers

- Configure, deploy and troubleshoot Certes Technologies solutions

- Administer and evolve cloud network technologies

- Manage the firewall rule lifecycle and change management processes via ServiceNow

Position based in Strasbourg — 100% on site + EU nationality mandatory (European institutions context).

Essential

- Solid experience in cloud environments

- Experience within a large organisation: banking, military or service operator sector

- Mastery of Checkpoint and FortiGate firewalls

- Experience in change management and security rule lifecycle (ServiceNow)

- Network security skills (GIS)

- Knowledge of ACI (hands-on experience or solid fundamentals)

- Mastery of network fundamentals: IP subnetting, VLANs

- Fluent English (B2 minimum)

Key skills

- Rigour and troubleshooting ability in complex environments

- Excellent communication skills

- Autonomy and sense of responsibility

Experience: 5 years minimum.