Network & cyber security engineer

GBR Recruitment Ltd is partnering exclusively with a leading MOD technology EW company to recruit an experienced Network & Cyber Security Engineer. This role is subject to legal/security restrictions relating to nationality and clearance eligibility. Applicants must be a British National under UK nationality law and have, or be able to obtain, UKSV security vetting if not already obtained.

In this key role you will secure hybrid environments, on‑site infrastructures and cloud services (Microsoft 365), and manage Fortinet/FortiGate firewalls and enterprise network security architecture. Familiarity with Microsoft security tooling (Defender suite, Purview, Compliance Centre, Entra ID, Conditional Access & Intune) is required. VMware vSphere virtualisation, SIEM platforms, IDS/IPS systems, DevSecOps, and security compliance frameworks (ISO27001, Cyber Essentials, GDPR) are part of the skill set. Experience with SC-200, MS‑500, Fortinet NSE 4, CISM, CISSP, CEH or CREST is a significant benefit but not essential. Scripting in PowerShell, Python or Bash and knowledge of Docker or Kubernetes are desirable.

As a dedicated Network and Cyber Security Engineer, you will own the security of the infrastructure, design and build the security function, and embed security thinking across the company. This is a hands‑on role with opportunities to grow and potentially lead a Cyber Security/Networking team.

Duties

• Support and play a key part in the design and implementing of the network and cyber security infrastructure, including Fortinet/FortiGate firewall and the hybrid Active Directory environment.
• Utilise Microsoft 365 E5 licensing, adopting Microsoft Defender, Purview, Compliance, and wider security tooling.
• Manage and secure the client’s on‑site premises in terms of services and infrastructure.
• Support the DevSecOps team as the security guru, guiding the integration of applications and security tooling across CI/CD pipelines.
• Implement new security policies and maintain current policies, standards and documentation in line with relevant frameworks (ISO27001, Cyber Essentials, GDPR and Defence Cyber Certification).
• Lead vulnerability management, from scanning and assessment through to remediation.

Skills that are a must have are

• Experience securing hybrid environments combining on‑premises infrastructure and cloud services, particularly Microsoft 365.
• Expertise with Fortinet/FortiGate firewalls and enterprise network security architecture.
• In‑depth knowledge of Microsoft security tooling, Defender suite, Purview, Compliance Centre, Entra ID, Conditional Access and Intune.
• Previous exposure to virtualisation platforms, particularly VMware vSphere and/or VDI.
• Proficiency with SIEM platforms and IDS/IPS – configuration, tuning, alerting and threat response.
• Familiarity with DevSecOps practices and tooling.
• Solid understanding of security compliance frameworks including ISO27001, Cyber Essentials and GDPR.

Employee Benefits

32 days holiday (can be 35 depending on when Xmas falls), 5% pension match, private health insurance & EAP.

This role is commutable from Lincoln, Newark, Grantham, Gainsborough, Sleaford, Spalding, Boston, Nottingham, Rotherham, Sheffield, Doncaster, Scunthorpe, Grimsby & Hull. The client is open to relocation to one of these listed areas.