Job Description:

Senior Network Engineer – NSX (JFF5) – 1736

Location: Yeovil, Somerset 
Onsite: Full time on site (flexible extended hours available)
Duration: 6 months
Rate: £92.53 Per hour (Umbrella)
Security Clearance: Active DV clearance or lapsed DV is required due to the sensitive nature of the project

Do you want to grow your career in network engineering and work on projects that safeguard some of the UK’s most critical systems? As a Senior Network Engineer, you will play a key role in designing, configuring, and supporting secure network environments that keep critical services connected and protected.

You will lead the resolution of complex customer challenges in an agile, innovative, and collaborative environment. This role requires close engagement with technical teams, stakeholders, and customers to ensure successful delivery of secure networking solutions.

We are seeking a Senior Network Engineer with strong NSX / network virtualisation expertise to support the delivery of secure and complex infrastructure projects.

• Design, configure, and support network virtualisation solutions (e.g. 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- 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

• Strong experience designing, configuring, and supporting network virtualisation platforms (e.g. NSX or similar)

• Ability to balance hands-on engineering with technical leadership and mentoring responsibilities

• Confidence to take ownership of solutions and represent networking in technical discussions

• Strong understanding of TCP/IP, OSI model, and routing/switching protocols (BGP, OSPF, QoS, VPNs, VLANs)

• Network virtualisation (NSX-T): design, configuration, and support of NSX-based networking environments

• Software-defined networking: implementation of logical switching, routing, and micro-segmentation

• Integration of NSX networking within virtualised and platform environments (e.g. VCF)

• Hands-on experience with Cisco or equivalent multi-vendor network equipment

• Network security technologies (firewalls, IDS/IPS, VPN, segmentation)

• Familiarity with virtualisation and cloud networking concepts

• Network monitoring, diagnostic, and analytics tools

• Understanding of ITIL and service management frameworks

• Experience delivering within secure, enterprise, or defence environments

• VMware NSX-T deep expertise and certification (or equivalent experience)

• VCF networking integration (vSphere, vSAN, Aria Suite)

• Overlay / underlay network design concepts

• Automation of network configuration (Ansible, Terraform, APIs)

• Integration with security tooling (SIEM, SOC platforms)

• Cloud networking (AWS, Azure) and hybrid connectivity

• Experience working in highly secure or regulated environments

If this is something of interest, can you please send me your most up to date cv to - (url removed) or alternatively call me on (phone number removed)