Senior Cyber Security Analyst - Incident Response & Risk

iO Associates; England; On-site; GBP 85,000 - 110,000; Full time

Job summary

iO Associates is seeking a Senior Cyber Security Analyst to act as deputy to the Group Head of Cyber Resilience and Security. This hands-on role blends security operations, incident response, vulnerability management and cyber governance.

You will investigate and coordinate security incidents, manage vulnerabilities, assess cyber risk across projects and third parties, and guide security improvements. You will mentor analysts and represent the Security function with key stakeholders.

Qualifications

• Hands-on experience in security operations and incident response.
• Strong knowledge of IAM, endpoints, networking and cloud security.
• Familiarity with ISO 27001 and Cyber Essentials frameworks.
• Certifications such as CISSP, CISM, SSCP, CySA+ desirable but not required.

Responsibilities

• Lead and investigate security incidents, coordinating containment and remediation.
• Use SIEM, EDR, Microsoft Defender and Sentinel to investigate suspicious activity.
• Manage vulnerability assessment, prioritisation and remediation.
• Conduct cyber risk assessments across projects, systems and third parties.
• Support ISO 27001, Cyber Essentials and security governance.
• Work across Entra ID, Conditional Access, Active Directory and IAM.
• Drive improvements to security controls, processes and cyber resilience.
• Support and mentor less experienced analysts and act as senior escalation point.

Skills

Security operations

Incident response

Vulnerability management

IAM security

Cyber risk & governance

Tools

SIEM

EDR

Microsoft Defender

Sentinel

Job description

iO Associates is seeking a Senior Cyber Security Analyst to act as deputy to the Group Head of Cyber Resilience and Security. This hands-on role blends security operations, incident response, vulnerability management and cyber governance.

You will investigate and coordinate security incidents, manage vulnerabilities, assess cyber risk across projects and third parties, and guide security improvements. You will mentor analysts and represent the Security function with key stakeholders.