Senior Information Security Analyst, UK in London

Realty Income seeks a Senior Information Security Analyst to support the Information Security team’s expansion in Europe, enabling a career in global security operations.

Position Overview

Reporting to the Associate Director, European IT and operating under the global Information Security program, the analyst will monitor and triage security alerts, investigate incidents, and optimize security tooling to improve detection quality and reduce false positives.

Key Responsibilities

• Monitor, triage, and investigate security alerts in coordination with the Security Operations Center (SOC) and internal teams.
• Analyze and validate potential security incidents, ensuring accurate classification, documentation, and escalation.
• Perform daily operational information security tasks, including management and resolution of ServiceNow incidents assigned to the Information Security team.
• Support incident response efforts through investigation, coordination, and detailed documentation of findings.
• Participate in an on‑call rotation as required to support timely response and escalation of security incidents outside of business hours.
• Tune and optimize security tools, including SIEM and endpoint protection platforms, to improve alert fidelity and reduce false positives.
• Collaborate with internal technology teams to ensure appropriate logging, monitoring, and alerting capabilities are in place across systems.
• Work closely with the IT Service Desk, Operations, and development teams to support vulnerability identification and ensure remediation is prioritised and delivered within agreed SLAs.
• Work with global and regional stakeholders to support consistent security operations and incident handling across time zones.
• Support security awareness initiatives through participation in training, workshops, and knowledge‑sharing activities.
• Partner with the global Information Security team to review, streamline, and develop security processes, procedures, and incident response playbooks.
• Promote a culture of security across the organization through engagement and collaboration.
• Perform other duties as assigned.

Candidate Requirements

• Suitable experience in an Information Security role.
• Previous experience in a technical IT role (System Administration, Network Administration, DevOps).
• 4‑8 years of relevant experience preferred.
• Cybersecurity certification(s) (CISSP, Sec+, CCSP, CEH) or equivalent.
• Knowledge of NIST CSF, GDPR, SOX, and other regulatory compliance standards.
• Hands‑on experience with security technologies such as Microsoft Defender, Zscaler, SIEM platforms, identity platforms (Azure/Entra, Okta).
• Incident response experience, threat detection, and vulnerability management in an enterprise environment.
• Ability to analyze, prioritise, and respond to security alerts and vulnerabilities within business context.
• Experience with incident response processes and best practices.
• Knowledge of cloud security principles, particularly within Microsoft Azure environments.
• Working technical knowledge of IT systems including Active Directory, Microsoft 365, and Windows OS.
• Strong written and verbal communication skills; ability to clearly document findings and risks to technical and non‑technical stakeholders.
• Commitment to continuous learning and staying current with emerging threats and technology.

Hybrid working arrangements: in‑office Monday‑Thursday, remote as needed. May require infrequent travel to remote sites. Availability outside normal working hours for security incidents.

Desirable but not Essential

• Experience in the financial services or investment industry.
• Bachelor’s degree in information security or related field.

Our benefits package includes health, dental, and vision insurance, a 401(k) plan with a 50% match up to 6% of eligible compensation, paid holidays, paid volunteer time, and generous paid time off.

Realty Income is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

If you require accessibility support to submit your application or other reasonable accommodations in the recruitment process, please contact or call 800‑375‑6700.