Senior Network Engineer SFIA 5 | Secure MoD‑Grade Networks

Thorn SDS Ltd; Farnborough; On-site; GBP 60,000 - 85,000; Full time

Benefits offered by this job

Competitive salary

25 days Annual Leave (plus Bank Hols)

Employer Pension Contributions

Group Life Insurance

Dental Cashback Plan

Health Cashback Plan

Wellbeing Services

Thorn Wellbeing Support Contribution

Cycle to Work Scheme

Supported Training & Personal Dev.

Octopus EV Salary Sacrifice

Job summary

Thorn SDS Ltd is seeking a Senior Network Engineer to own and optimise complex network environments across multiple projects. You will design high-level and low-level network solutions, configure firewalls, and contribute to security accreditation and documentation.

Occasional nationwide site work is expected, with travel and MoD-aligned processes in scope. The role requires hands-on networking, strong communications, and a pro-active approach to building secure, scalable networks in demanding

Qualifications

• Experience as a Senior Network Engineer.
• Strong routing, switching and security skills.
• Ability to design and implement network solutions across MoD-like environments.
• Hands-on experience with firewall design and config.
• Proven ability to document network designs and changes.

Responsibilities

• Own and optimise complex network environments across multiple customer projects.
• Develop low-level network designs and build/configuration docs.
• Configure networking addressing and management access controls.
• Support security accreditation and test planning/execution.
• Perform site installations (firewall, servers, LAN).
• Contribute to MoD Engineering Change Requests.

Skills

Routing & Switching

Network Security

Network device installation

Monitoring & Management

Network Virtualisation

Network Automation

CCNA/CCNP

Job description

Thorn SDS Ltd is seeking a Senior Network Engineer to own and optimise complex network environments across multiple projects. You will design high-level and low-level network solutions, configure firewalls, and contribute to security accreditation and documentation.

Occasional nationwide site work is expected, with travel and MoD-aligned processes in scope. The role requires hands-on networking, strong communications, and a pro-active approach to building secure, scalable networks in demanding