Infrastructure & Network Security Specialist
We are seeking an experienced Infrastructure & Network Security Specialist to help protect, maintain, and improve a complex technology environment. In this role, you will contribute to the design, implementation, and ongoing management of secure infrastructure and network services across on-premises and cloud platforms. You will work closely with technology, engineering, and business teams to identify risks, strengthen controls, and ensure systems remain resilient, available, and compliant with relevant policies and standards.
Your responsibilities will include configuring and administering firewalls, intrusion prevention systems, secure remote-access solutions, network segmentation, vulnerability management tools, and security monitoring platforms. You will investigate security events, support incident response activities, analyse logs and alerts, and coordinate remediation of identified weaknesses. The role will also involve reviewing infrastructure and network changes, maintaining security documentation, contributing to disaster recovery and business continuity planning, and supporting audits and compliance assessments. You will be expected to recommend practical improvements, automate repeatable security tasks where appropriate, and keep informed of emerging threats, technologies, and industry best practice.
Applicants should have proven experience in infrastructure, network, or cyber security, with strong knowledge of TCP/IP, routing and switching, DNS, VPNs, firewalls, identity and access management, endpoint protection, and security monitoring. Experience with cloud security, SIEM platforms, vulnerability scanners, configuration management, and scripting or automation tools would be advantageous. Relevant professional certifications or equivalent practical experience are welcomed. You should be analytical, methodical, and confident communicating technical issues to both specialist and non-specialist audiences. The successful candidate will demonstrate sound judgement, a proactive approach to risk reduction, and the ability to manage competing priorities while working effectively as part of a collaborative team.
Infrastructure & Network Security Specialist
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