Lead Network Engineer

Sopra Steria
Salisbury, United Kingdom
Today
£50,000 – £65,000 pa

Salary

£50,000 – £65,000 pa

Seniority
Lead
Posted
10 Aug 2026 (Today)

Are you an experienced Network Engineer looking to work at the forefront of secure, mission-critical defence networks?

We're seeking a Network Engineer (Deployable Services) to support the operation, enhancement and security of the Joint Military Network Integration and Information Assurance Network (JMNIAN). You'll play a key role in maintaining and evolving complex, high-availability network infrastructure that supports UK Defence and international coalition operations.

Working within a specialist delivery team, you'll design, implement and support secure networking solutions, collaborate with defence stakeholders and international partners, and help deliver critical networking capabilities across a highly secure environment.

This is an opportunity to work on some of the most secure and strategically important networking platforms in Defence. You'll collaborate with highly skilled specialists, contribute to international initiatives, and play a direct role in delivering resilient, secure communications capabilities.

Hybrid: 3 days Salisbury 2 days home working.

You do need to hold current DV Clearance.

What you will be doing:

  • Maintain and support the JMNIAN network and international network gateways.
  • Deliver network design changes and architectural improvements.
  • Analyse network monitoring data.
  • Manage network security controls, including perimeter security and internet-facing policies.
  • Support software-defined networking and inter-enclave firewall solutions.
  • Develop automation and tooling.
  • Create and maintain technical documentation using tools such as Atlassian Confluence.

What you will bring:

  • ?Strong networking engineering experience within enterprise, defence, service provider or data centre environments.
  • CCNP certification (or equivalent experience).
  • Significant firewall engineering experience.
  • Palo Alto PCNSE certification (or equivalent experience).
  • Experience with multi-vendor networking technologies.
  • Proven network design and project delivery experience.
  • Experience managing and supporting secure, complex network infrastructures.
  • Ability to communicate technical concepts effectively to both technical and non-technical audiences.

If you are interested in this role but not sure if your skills and experience are exactly what we’re looking for, please do apply, we’d love to hear from you!

Employment Type: Permanent

Location: This is a hybrid position. 3 days per week on site in Salisbury, 2 days home working..

Security Clearance Level: Current DV Clearance.

Internal Recruiter: Jane

Salary: Up to £65000.00

Benefits: 25 days’ holiday, Health Shields medical insurance, 6% pension contribution and life assurance at 4x salary, £5400 car allowance, 3% Flex benefit.

Loved reading about this job and want to know more about us?

Sopra Steria’s Aerospace, Defence and Security business designs, develops and deploys digital solutions to Central Government clients. The work we do makes a real difference to the client’s goal of National Security, and we operate in a unique and privileged environment. We are given time for professional development activities, and we coach and mentor our colleagues, sharing knowledge and learning from each other. We foster a culture in which employees feel valued and supported and have pride in their work for the customer, delivering outstanding rates of customer satisfaction in the UK’s most complex safety- and security-critical markets.

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