Salary: £35,000 - 75,000 per year Requirements: Candidates must be UK nationals/British citizens Must have resided in the UK for the past 10 years Eligible for high-level UK Security clearance (SC then DV) Strong skills and experience with Elastic SIEM and Tanium Experience with ArcSight SIEM Competent in Linux and Windows operating systems Good networking troubleshooting skills Mentoring experience for training junior team members Responsibilities: Drive technical and architectural improvement of the SIEM managed service and tools Manage operational support, incidents, and change control Ensure appropriate version management for SIEM to maintain vendor support Onboard new technologies, manage certificate renewals, and monitor license usage Troubleshoot and tune managed infrastructure Maintain documentation of the managed infrastructure Engage with other DXC technical teams for technical assistance Act as a technical escalation point for SIEM incidents Architectural design, review, and implementation of Elastic SIEM, Tanium, and ArcSight SIEM Technologies: Support Linux Security Windows More: At DXC Technology, we are committed to delivering excellence for our customers and colleagues. Based in Erskine, Scotland, we promote a people-first agenda, ensuring a sense of community and a healthy work-life balance. Our success is rooted in our diverse team and our focus on individual skills and experiences. We provide a range of training and support to help our colleagues grow personally and professionally. Our comprehensive benefits package includes competitive compensation, a pension scheme, private health insurance, and various perks to enhance your experience with us. Join us on our journey to innovate and modernize IT solutions in a secure environment. last updated 8 week of 2026