Job summary

Join a leading Defence & Security company in Marlow as a Senior IT Network & Firewall Engineer. Design, deploy, and secure advanced networks using Cisco, Aruba, and Palo Alto tech. Competitive salary, dynamic team, and cutting-edge projects

Key skills required for this role

Network & Firewall Engineer

Important

Network and Firewall Engineer

Job description

Our client, a specialist in advanced communication, navigation, and electronic warfare technologies, is seeking a Senior IT Network and Firewall Engineer to join their team in the Defence & Security sector. Based in Marlow, this role is integral to designing, deploying, and maintaining secure network environments supporting cutting-edge projects.

Key Responsibilities:

• Build and deploy the required network infrastructure, ensuring readiness for ongoing support.
• Manage and troubleshoot secure development and reference environments.
• Design, administer, and maintain Corporate, Secure, and Development networks.
• Create and maintain firewall rule sets to safeguard network integrity.
• Handle IP switching and routing, subnetting, and VLAN configurations.
• Configure and maintain Palo Alto firewalls, Cisco & Aruba switches, and Aruba Wifi. Enterprise-grade encryption devices.
• Diagnose and resolve complex network issues effectively.

Job Requirements:

• Proven experience with Cisco, Aruba, and Palo Alto. Experience with Intrusion Prevention/Detection and network monitoring (e.g., Darktrace).
• Strong understanding of network protocols, including IP switching, routing, subnetting, and VLANs.
• Hands-on experience with Cisco technologies and Cisco CMNA certification.

Desirable Skills & Knowledge:

• Experience in Network Architecture.
• Knowledge of Software Defined Networking (SDN) technologies and ZTN (Zero Trust Networks).
• Posture checking and isolation.
• Port Authorisation Authentication (802.1x) Aruba/Fortinet.
• Palo Alto Networks - Firewalls (On-prem perimeter and Cloud-based appliances).
• Secure Proxy systems - Palo Alto Prisma (or others).
• MFA (RSA SecurID or similar hard/soft token systems).
• On-prem and Cloud security principles.
• Secure-by-design methodology.
• NIST 800-171 (CMMC CUI).

Certifications:

• PCNSE - Palo Alto Certified Network Security Expert preferred (or working towards).

Benefits:

• An opportunity to work on advanced technologies in the defence sector.
• A dynamic and innovative work environment.
• Competitive salary and benefits package.

If you are an experienced network engineer looking for a challenging role within the defence sector, we would love to hear from you. Apply now to join our client's innovative team in Marlow.