Security Infrastructure Engineer – Cyber Security Operations

About the role

Our client, a globally recognised luxury hospitality brand, is looking for a Security Infrastructure Engineer to join their IT team in London. The role focuses on strengthening cyber security across on‑premises infrastructure and Microsoft Azure cloud environments, acting as the technical subject‑matter expert for vulnerability remediation, threat response and security controls.

Key responsibilities

• Manage and resolve cyber security incidents, investigations and technical issues, monitoring and responding to threats via enterprise XDR platforms.
• Lead remediation of findings from penetration tests, vulnerability scans and security assessments, coordinating with infrastructure, cloud and regional IT teams.
• Conduct technical security reviews of infrastructure and cloud environments, identify gaps, assess risks and implement remediation strategies.
• Provide security expertise throughout IT and business projects, reviewing architectures and designs to embed security requirements.
• Support audits, compliance initiatives and governance activities, and engage with global stakeholders to maintain consistent security standards.

Required profile

• Strong background in IT infrastructure, systems engineering or support.
• Proven experience in cyber security operations and vulnerability remediation.
• Experience working with penetration testing and vulnerability management outputs.
• Good understanding of Active Directory security and Microsoft Azure environments.

Required skills

• Active Directory
• Microsoft Azure
• Enterprise XDR platforms
• Penetration testing
• Vulnerability management