Senior Network Infrastructure Engineer

Senior Network Infrastructure Engineer – St Neots (PE19) – Perm – Full-Time on site

About the Role:

Join our Digital Services Group (DSG) in collaboration with the Electronic Warfare Operations Support Group (EWOS), a diverse team of over 60 professionals. We're building a pioneering team at a cutting-edge test and evaluation facility at our Cambridgeshire HQ.

We're seeking a Senior Network Infrastructure Engineer with at least 5 years of experience to lead the full engineering lifecycle of secure networks — from requirements gathering and system design through to implementation, testing, commissioning, and ongoing support.

You will work with unprecedented customer access, cutting-edge technologies, and industry-best practices to shape the IT infrastructure of a revolutionary synthetic test and evaluation system.

Key Responsibilities:

• Translate business needs from non-technical stakeholders into technical specifications.

• Design, implement, and support secure network infrastructures.

• Provide 3rd-line support and act as a technical mentor to junior engineers.

• Manage the configuration and deployment of Windows Server environments (2022/2025).

• Oversee multi-vendor systems (FortiGate, Cisco, Dell) and virtualization platforms.

• Ensure projects meet requirements and follow change management protocols.

Essential Skills & Experience

• Windows Server (2022/2025): AD, Group Policy, WSUS, DHCP, NPS, LDAPS, LAPS, AppLocker, PKI, Smart Cards, File Servers, KMS, WDS/MDT.

• OS Support: Windows 10/11

• Network Hardware: FortiGate Firewalls, Cisco Switches

• Virtualization: Hyper-V, VMware vSphere

• Hardware: Dell SANs (iSCSI, RAID), Dell Servers

• Software: Nessus, Ad Audit Plus, SIEM, Wireshark, SQL Server, Jira Service Desk

• Other: Linux experience, excellent independent troubleshooting skills, solution design and delivery

Desirable Skills

Experience or interest in learning the following is advantageous:

• GitLab, Ansible

• CATAPAN encryption devices

• CIS benchmarks

• PRTG Network Monitor

• Veeam Backup & Replication

• Familiarity with Agile/SCRUM methodologies

Benefits:

• Annual Leave: 25 days (includes up to 3 days for December shut-down) + buy/sell up to 5 days

• Pension: Choice of two schemes

• Healthcare: Private Medical & Dental + discounts for family members

• Life Assurance: Up to 4x salary

• Schemes: Share Save, Electric/Hybrid Car Leasing, Cycle to Work

• Discounts: Retail partner discounts

• Support: CPD opportunities, Annual Wellness Allowance, Mental health first aiders, Employee Assistance Programme

Security Requirements:

Due to the sensitive nature of our projects, candidates must be:

• A sole UK national

• Eligible to obtain and maintain DV (Developed Vetting) security clearance

If you’re ready to lead cutting-edge IT infrastructure projects within a secure, collaborative environment, we’d love to hear from you.