Senior Network Engineer - NSX

Salary: £19,286.4 - 19,286.4 per year

• Active DV clearance or lapsed DV clearance is required due to the sensitive nature of the project.
• Strong experience designing, configuring, and supporting network virtualisation platforms such as NSX or similar.
• Strong understanding of TCP/IP, the OSI model, and routing and switching protocols including BGP, OSPF, QoS, VPNs, and VLANs.
• Network virtualisation experience, including NSX-T design, configuration, and support of NSX-based networking environments.
• Experience with software-defined networking, including logical switching, routing, and micro‑segmentation.
• Experience integrating NSX networking within virtualised and platform environments such as VCF.
• Hands‑on experience with Cisco or equivalent multi‑vendor network equipment.
• Experience with network security technologies including firewalls, IDS/IPS, VPN, and segmentation.
• Familiarity with virtualisation and cloud networking concepts.
• Experience with network monitoring, diagnostic, and analytics tools.
• Understanding of ITIL and service management frameworks.
• Experience delivering within secure, enterprise, or defence environments.
• Desirable: VMware NSX‑T deep expertise and certification, or equivalent experience.
• Desirable: VCF networking integration experience across vSphere, vSAN, and Aria Suite.
• Desirable:
  Understanding of overlay and underlay network design concepts.
• Desirable:
  Experience automating network configuration using Ansible, Terraform, or APIs.
• Desirable:
  Experience integrating with security tooling such as SIEM and SOC platforms.
• Desirable:
  Cloud networking experience across AWS and Azure, including hybrid connectivity.
• Desirable:
  Experience working in highly secure or regulated environments.

• Design, configure, and support network virtualisation solutions such as VMware NSX within secure and enterprise environments.
• Take ownership of engineering delivery for one or more work packages, including planning, estimation, execution, and reporting.
• Develop and review high‑level and low‑level network designs and technical documentation.
• Integrate and test network components, ensuring compliance with performance and security requirements.
• Provide mentoring, guidance, and technical leadership to Network Engineers and Technicians.
• Collaborate with stakeholders, project teams, and customers to ensure solutions meet requirements.
• Drive continuous improvement and contribute to engineering standards and governance.
• Lead the resolution of complex customer challenges in an agile, innovative, and collaborative environment.
• Engage closely with technical teams, stakeholders, and customers to ensure successful delivery of secure networking solutions.

• AWS
• Ansible
• Azure
• Cloud
• Cisco
• Support
• ITIL
• Network
• Security
• TCP/IP
• Terraform
• VPN
• VMware

We are hiring a Senior Network Engineer for a 6‑month onsite contract in Yeovil, Somerset, supporting secure and complex infrastructure projects. This is a full‑time on‑site role with flexible extended hours available, focused on protecting critical UK systems through secure network engineering. We offer the opportunity to work in an agile, innovative, and collaborative environment alongside technical teams, stakeholders, and customers, with a strong emphasis on leadership, delivery, and continuous improvement.

last updated 29 week of 2026