Network & Security Engineer

You want to join a company that places people at the heart of its concerns? We are waiting for you at

Extia

Extia is an engineering consultancy which proposes since 2007 an unprecedented approach in its sector by combining well-being and performance at work. A successful model : more than 3000 Extians working in 22 agencies in France and abroad, 1st Great Place To Work in France, 160 millions of euros of turnover and plenty of energy

At Extia, it's "First who, then what" so, let's do it

First who

Analytical mindset :

Able to identify and resolve security and networking issues quickly and accurately

Autonomous and proactive :

Takes initiative in identifying improvement opportunities and handling incidents independently

Strong collaboration skills :

Works well in cross-functional and international teams

Attention to detail :

Maintains thorough documentation and follows best practices rigorously

Problem-solving orientation :

Brings a logical, structured approach to investigating complex issues

Adaptability :

Comfortable working in a fast-paced, evolving technological environment

Then what

We are seeking a skilled Network Security Engineer to join our cybersecurity team. In this role, you will be responsible for configuring and maintaining firewall policies, analyzing network traffic, and implementing security best practices to ensure a robust and secure infrastructure.

Key Responsibilities :

• Configure and maintain firewall rules and policies on Fortigate and / or Palo Alto platforms
• Monitor and analyze network traffic to identify anomalies and ensure adherence to secure communication protocols
• Troubleshoot and resolve security issues related to ports, protocols, and proxy configurations
• Implement microsegmentation strategies within 3-tier architecture environments
• Configure and manage NAT rules to control IP address translation and traffic flow
• Collaborate with security, infrastructure, and application teams to support incident resolution and policy updates
• Document configuration changes, procedures, and network diagrams
• Work with ticketing systems (ServiceNow experience is a plus) for issue tracking and resolution

Required Skills and Qualifications :