Network Engineer

Position Summary

In this role, you will serve as a key member of our enterprise IT team, building, maintaining, and securing the network infrastructure that keeps our organization connected and mission‑ready across on‑premises, cloud, and hybrid environments.

You will partner with the Senior Network Engineer, cybersecurity, cloud operations, and IT support teams to deliver resilient, high‑performance communications—including classified environments. You will be successful if you thrive in a fast‑paced, security‑focused setting, take ownership of complex network challenges, and are driven by continuous improvement.

This is an excellent opportunity for a hands‑on engineer looking to grow professionally while making a direct impact on the availability, security, and performance of critical network systems.

• Design, deploy, and maintain enterprise network infrastructure—routers, switches, firewalls, and wireless access points—across classified and unclassified environments
• Configure and optimize LAN, WAN, WLAN, SD‑WAN, and VPN solutions using platforms such as Cisco, Aruba, and Palo Alto
• Implement and enforce network security controls including firewall policies, ACLs, IDS/IPS, NAC, and network segmentation aligned with NIST, CMMC, ISO 27001, and Cyber Essentials frameworks
• Support cloud and hybrid network connectivity across AWS and Azure, including VNETs, VPCs, VPN gateways, Express Route, and Direct Connect
• Deploy and manage enterprise wireless networks—access points, controllers, SSID/VLAN configuration, WPA3/802.1X security, and RADIUS integration
• Perform tier 2/3 troubleshooting, root cause analysis, and incident response to maintain 99.99 % network uptime
• Monitor network health and security posture using tools such as Solar Winds, Netwatch, SNMP, Net Flow, Wireshark, and SIEM platforms
• Execute change management activities including firmware upgrades, patch management, VLAN provisioning, and routing updates
• Create and maintain network documentation: runbooks, SOPs, network diagrams, device inventories, and post‑incident reports
• Collaborate cross‑functionally with Systems Administration, Dev Ops, Security, and the SOC; coordinate with vendors on hardware/software issues

• 5–8 years of hands‑on experience in network engineering or administration supporting multi‑site enterprise environments (500+ endpoints)
• Strong command of TCP/IP, OSI model, routing protocols (BGP, OSPF, EIGRP), and switching technologies (VLANs, STP, VxLAN)
• Demonstrated experience with Cisco (Catalyst, Nexus) and/or Aruba enterprise networking platforms
• Working knowledge of Palo Alto firewalls or equivalent enterprise firewall solutions
• Solid understanding of VPN technologies (IPSec, SSL/TLS), DNS, DHCP, IPAM, and core network services
• Experience with network monitoring, logging, and analysis tools (SNMP, Net Flow, syslog, Wireshark)
• Familiarity with wireless networking technologies (802.11ax/Wi‑Fi 6, controller‑based architectures)
• Foundational understanding of cloud networking concepts (Azure VNETs, AWS VPCs, security groups, route tables)

• CNP Enterprise or equivalent advanced networking certification
• Experience with defence cybersecurity regulations (NIST 800‑171, CMMC, ISO 27001, ITAR)
• Hands‑on experience with Software‑Defined Networking (SDN) or SD‑WAN platforms
• Familiarity with Zero Trust Network Architecture (ZTNA) principles
• Network automation and scripting skills (Python, Ansible, Power Shell)
• Experience with Azure Express Route or AWS Direct Connect implementations

• Private Medical Insurance
• Subsidised gym membership/plans through Wellhub
• Electric Car scheme
• Cycle to work scheme
• Salary‑sacrificed pension scheme
• Free lunch on office days
• Enhanced Parental Leave
• 30 days annual PTO plus bank holidays
• Bonus Scheme
• Personal development opportunities

The employee will have the legal right to work in the United Kingdom and will be able to produce the right‑to‑work documentation.

Metrea Management Limited is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or other characteristics protected by law.

Full‑time non‑exempt position with typical working hours Monday through Friday, 9:00 am to 6:00 pm. Hours and work shifts may change in accordance with department and business needs. Exempt employees must have the ability to be on‑call and available as required. Non‑exempt employees may be required to work over 40 hours per week with approval from the department manager.

Hybrid; minimum of 3 days per week onsite – London, UK.

Travel is required, around 25 %.