Lead Network Engineer - Secure Infrastructure

Are you a Network Engineer who enjoys solving complex problems and wants to play a key role in modernising enterprise networks through automation?

You’ll be joining a dedicated network team based in Salisbury, working as part of a wider platform engineering function within a highly secure environment.

This Lead Network Engineer role offers the opportunity to work on cutting-edge network platforms that support critical defence activities, while developing your skills as the organisation moves towards a more automated and software-driven approach.

You’ll collaborate closely with colleagues and customers, contributing to meaningful work where reliability, security and continuous improvement are key.

This is an ideal opportunity for someone who is curious, motivated to learn, and keen to build on their existing technical expertise.

You’ll be based near Salisbury, with an expectation to work onsite three days per week.

What you'll be doing:

• Assisting with the design, build, deployment and support of

enterprise network platforms.

• Driving the adoption of automation using tools such as Ansible and

Terraform.

• Supporting operational requirements within a fast-paced, secure

environment.

• Investigating complex issues, producing root cause analysis, and

implementing solutions.

• Proactively monitoring and maintaining production systems while

managing escalations.

• Mentoring colleagues and contributing to service improvement and

innovation.

What you’ll bring:

• Experience with Cisco networking

technologies including routing, switching, firewalls and wireless.

• Strong understanding of networking fundamentals including TCP/IP,

VLANs, DHCP, DNS and ACLs.

• Experience with automation or scripting using tools such as

Ansible, Python, Bash or PowerShell.

• Knowledge of routing protocols such as BGP and network segmentation

using VRFs.

• CCNA certification with CCNP achieved or in progress.
• Ability to produce technical documentation including designs and

root cause analysis reports.

It would be great if you had:

• Exposure to cloud networking principles in Azure or AWS.
• Experience working within an ITIL environment.
• Knowledge of software-defined networking technologies such as Cisco

ACI or VMware NSX.

If you’re 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: Full-time, Permanent. Location: Salisbury – with an expectation of 3 days per week onsite. Security Clearance Level: Developed Vetting (DV) or eligible for DV clearance. Internal Recruiter: Paul Salary: Up to £65,000, depending on experience. Benefits: £5,400 car allowance, 25 days annual leave with the option to buy additional days, private medical, life assurance, pension, and generous flexible benefits fund.

Although this role is advertised as full-time, we believe that flexibility at work can promote work/life balance, increase your motivation, reduce stress and improves performance and productivity. We support different ways of working and can offer a range of flexible working arrangements. So, if you’re interested and need to work flexibly, we encourage you to apply and talk to us about what might be possible.

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.