Base pay range
Thorn SDS is a specialist Managed Service Provider based in Alton, Hampshire. We empower technology professionals and organisations across the Space, Defence, and Security sectors. We’re growing our team with a Senior Network Engineer who’s ready to make an impact.
Full-time, on-site role (5 days per week) at a secure location in Hereford. Operating at SFIA Level 5, shaping and supporting mission‑critical network infrastructure in highly specialised environments.
Security Clearance – Must hold or be eligible to obtain a high level of National Security Clearance. Some UK travel with overnight stays may be required.
What You’ll Be Doing
* Configuring and managing routers, switches, and routing protocols
* Designing VLANs, network segmentation, and virtualised network environments
* Delivering cloud networking solutions and network automation
* Producing detailed network designs, configurations, and performance reports
* Monitoring and improving network performance with the right tools and processes
* Troubleshooting implementation issues and supporting end users in test environments
* Deploying infrastructure through later delivery phases
* Contributing to PI (Program Increment) planning and cross-functional collaboration
* Guiding and enabling others to deliver results, with scope to supervise or mentor
What You’ll Bring
* Proven experience as a Senior Network Engineer
* Strong capability across Routing & Switching, Network Security, Monitoring & Management, Network Virtualisation, Cloud Networking, Network Automation
* Excellent troubleshooting skills and the ability to untangle complex issues
* Certifications such as CCNA / CCNP (or equivalent) are a bonus
* Strong communicator and collaborator
* Analytical mindset with attention to detail
* Comfortable adapting to evolving technologies and industry trends
What’s In It For You
* 25 days Annual Leave (plus Bank Holidays)
* Employer Pension Contributions
* Group Life Insurance
* Dental Cashback Plan
* Health Cashback Plan
* Wellbeing Services (includes GP, Physio and Savings Benefits)
* Thorn Wellbeing Support Contribution
* Cycle to Work Scheme
* Supported Training & Personal Development Opportunities
All applicants must have the Right to Work in the UK.
Ready to Take the Lead?
If you’re looking to push your career forward in a high‑stakes, fast‑moving environment, we’d love to hear from you. Join Thorn SDS and become a key player in delivering secure, reliable network solutions where they matter most.
Apply now and shape the future of secure networking.
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