Senior Operational Security Engineer
We are seeking a Senior Operational Security Engineer to strengthen the protection, resilience and day-to-day security of critical technology services. You will work across infrastructure, cloud, applications and corporate systems to identify and reduce operational risk, improve security controls and support the safe delivery of technology change. This is a hands-on role requiring strong technical judgement, effective collaboration and the ability to respond calmly to evolving threats and operational incidents.
Your responsibilities will include monitoring and investigating security events, coordinating incident response activities, conducting vulnerability assessments and supporting remediation to agreed priorities. You will design, implement and maintain security controls across networks, endpoints, identity platforms, cloud environments and operational tooling. You will also contribute to threat modelling, security reviews, access management, patching, configuration standards and disaster recovery exercises. The role will involve developing automation and repeatable processes where appropriate, maintaining accurate documentation, producing risk and performance reports, and advising technical teams on secure architecture and operational practices. You will help improve security monitoring and detection capabilities, participate in on-call or out-of-hours support arrangements where required, and contribute to audits and compliance activity.
Applicants should have substantial experience in security engineering, security operations or a closely related discipline, with a strong understanding of incident management, vulnerability management, identity and access management, network security and secure cloud operations. Experience with SIEM, endpoint detection and response, vulnerability scanning, logging platforms and security automation is expected. Familiarity with recognised security frameworks and standards, such as ISO 27001, NIST or CIS Controls, would be advantageous. Relevant professional certifications are welcome but not essential. You should be able to analyse complex technical issues, communicate clearly with both technical and non-technical colleagues, manage competing priorities and influence improvements across multiple teams. A proactive approach, sound attention to detail and commitment to continuous learning are essential.
Senior Operational Security Engineer
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