Network Engineer - Nsx

Network Engineer – NSX
• Yeovil, England, GB

Leonardo UK operates a grade-based salary framework with broad bands. The salary range shown reflects the approved grade band for this role, or a narrower hiring range published within that band, and is benchmarked against the external market. Exceptions above the standard range are managed through governance controls to protect internal equity.

• 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 in 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
• Core areas (must have):
  • 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
  • Familiarity with virtualisation and cloud networking concepts
  • Network monitoring, diagnostic, and analytics tools
  • Understanding of ITIL and service management frameworks
  • Delivery within secure / enterprise / defence environments
  • VMware NSX‑T deep expertise and certification (or equivalent experience)
  • VCF networking integration (vSphere, vSAN, Aria Suite)
  • Automation of network configuration (Ansible, Terraform, APIs)
  • Integration with security tooling (SIEM, SOC platforms)
  • Cloud networking (AWS, Azure) and hybrid connectivity
  • Experience working in secure or regulated environments
• This is not an exhaustive list; we value a good attitude and willingness to learn

This role is subject to pre‑employment screening in line with the UK Government’s Baseline Personnel Security Standard (BPSS). An additional range of Personnel Security Controls referred to as National Security Vetting (NSV) will apply. This role requires Developed Vetting (DV) clearance prior to starting. For more information and guidance please visit:

Yeovil, UK

• Time to Recharge:
  Enjoy generous leave with the opportunity to accrue up to 12 additional flexi‑days each year
• Secure your Future:
  Benefit from our award‑winning pension scheme with up to 15% employer contribution
• Your Wellbeing Matters:
  Free access to mental health support, financial advice, and employee‑led networks championing inclusion and diversity (Enable, Pride, Equalise, Armed forces, Carers, Wellbeing and Ethnicity)
• Rewarding Performance:
  All employees at management level and below are eligible for our bonus scheme
• Never Stop Learning:
  Free access to 4,000+ online courses via Coursera and Linked In Learning
• Refer a friend:
  Receive a financial reward through our referral programme
• Tailored Perks:
  Spend up to £500 annually on flexible benefits including private healthcare, dental, family cover, tech & lifestyle discounts, gym memberships and more
• Flexible working:
  Flexible hours with hybrid working options. For part‑time opportunities, please talk to us about what might be possible for this role

We are committed to building an inclusive, accessible, and welcoming workplace. If you have any accessibility requirements to support you during the recruitment process, let us know. Be part of something bigger – apply now!