IT and Network Security EngineerJob Title: IT Security EngineerLocation: Oxfordshire - Hybrid (2 days per week on-site)Industry: Enterprise SaaS / Technology Solutions About the RoleWe are partnering with a rapidly scaling, globally active software and data platform enterprise looking to appoint a dedicated IT Security Engineer to join their growing security operations team.In this role, you will be instrumental in defending core infrastructure, enterprise networks, and critical data against modern cyber threats. Working closely with the Head of IT Security, you will oversee threat detection, manage security appliances, enforce compliance frameworks, and ensure that robust defensive postures are embedded across the technology stack. Key ResponsibilitiesSecurity Operations: Oversee network telemetry for suspicious activities, execute rapid threat detection and response, tune perimeter defenses (firewalls and virtual private networks), and direct proactive patch management cycles.Compliance and Audits: Drive internal control testing and maintain alignment with structured information security standards such as ISO 27001, supporting both internal evaluations and external auditor walkthroughs.Incident Handling: Manage the end-to-end lifecycle of security alerts or breaches, lead formal root-cause analysis, and embed corrective actions into future preventive safeguards.Third-Party Risk: Evaluate external vendors and technology partners to ensure compliance with internal security ..... full job details .....