Ingénieur réseaux & sécurité - Mission Freelance 3 mois

Freelance position based in Paris or Île-de-France.

Experience: 6 to 8 years

Mission duration: Minimum 3 months

Availability: Immediate

Daily Rate (TJM): To be defined based on profile

Requirements

Missions and activities

1. Participate in the design and evolution of LAN, WAN, and VPN infrastructures, aligned with business needs, and respecting company strategy, budget, and security constraints.
2. Contribute to the deployment of network and security infrastructures.
3. Ensure the proper functioning and availability of network infrastructures, maintaining operational and security conditions (firewalls, intrusion detection systems, proxies, etc.).
4. Conduct technological watch to propose evolutions in technologies, infrastructures, and architectures.
5. Act as an interface between teams during network deployment.
6. Manage network access rights for machines and users, following company security rules.
7. Participate in 'RUN' tasks (incidents and work requests) for the network team.
8. Participate in 'BUILD' tasks (construction of new infrastructures, evolution of existing ones) for the network team.
9. Draft and update documentation related to network infrastructures (DAT, DIT, DEX, HLD, LLD, test plans, etc.).
10. Be able to evolve and enhance skills on a complex technical scope, including:

• Hardware: Cisco, Palo Alto, Fortinet, Checkpoint, Forcepoint, Stormshield, NSX, F5, Aruba, Juniper, RSA, Tufin, Infoblox
• Functional aspects: LAN L2 & L3, BGP, MPLS, VRF, load balancing, 802.1X, Wi-Fi, certificates, L4 & L7 filtering

Education

• Master's degree (Bac +5), engineering school is a plus.
• Network vendor certifications are a plus (e.g., NSE4, NSE7, PCNSA, PCNSE, CCNA, CCNP, CCSA, etc.).

Technical environments

Technical domains

• Administration tools, infrastructure, network, middleware - Proficiency
• Network - Proficiency
• Security - Proficiency
• Télécom - Proficiency
• Virtualization - Proficiency

Functional domains

• Traffic - Proficiency
• Network authorization - Proficiency
• Instant Payment - Practical experience

Technologies

• Checkpoint, Cisco, Fortigate, iOS network equipment and security, LAN, Palo Alto, TACACS, WAN, Active Directory, Ansible, DNS, F5, Forcepoint, Juniper, ESX (notions)

Language skills

• English - Practical proficiency

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Information Technology

Industries

• IT Services and IT Consulting