Cyber Defence Network Engineer
We are seeking a Cyber Defence Network Engineer to design, operate and improve secure network infrastructure across a complex technology environment. The role will focus on protecting critical systems, detecting and responding to cyber threats, and ensuring network services remain resilient, available and compliant with relevant security standards. You will work closely with security operations, infrastructure, cloud and service delivery teams to implement effective defensive controls and support continuous improvement of the organisation’s cyber security posture.
Key responsibilities include configuring and maintaining firewalls, intrusion prevention systems, secure gateways, VPNs, network access controls and other protective technologies. You will monitor network activity, investigate alerts and suspicious events, support incident response, and contribute to the containment and remediation of security incidents. The role will also involve conducting vulnerability assessments, reviewing network designs, supporting penetration testing activities, developing technical procedures, and ensuring that security controls are appropriately documented and tested. You will contribute to change management, risk assessments, audit preparation and the development of automation or monitoring solutions that improve operational efficiency and threat visibility.
Applicants should have proven experience in network engineering, cyber defence or a closely related technical discipline, together with strong knowledge of TCP/IP, routing, switching, DNS, DHCP, network segmentation and common security architectures. Practical experience with enterprise firewalls, IDS/IPS, SIEM platforms, endpoint or network detection tools, cloud networking and secure remote access is highly desirable. Relevant professional certifications in networking, cyber security or information security would be advantageous. You should be analytical, methodical and confident investigating complex technical issues, with the ability to communicate clearly with both technical and non-technical stakeholders. A proactive approach, strong attention to detail and a commitment to maintaining current knowledge of emerging threats and defensive technologies are essential.
Cyber Defence Network Engineer
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