Senior Security Ops Analyst – Defender XDR & SIEM Expert

Hamilton Barnes Associates Limited; West Yorkshire; On-site; GBP 48,654 - 58,620; Full time

Job summary

Hamilton Barnes Associates Limited in the United Kingdom is seeking a Senior Security Analyst to deliver dedicated security operations for a client in a regulated industry. You will manage security incidents from detection through resolution and lead proactive activities across hybrid environments.

Collaborate with IT, cloud, engineering and third‑party teams to strengthen the client’s security posture, perform vulnerability assessments, threat hunting and security validation, and ensure

Qualifications

• Hands-on experience with Microsoft Defender XDR and SIEM systems.
• Experience in vulnerability management processes.
• Ability to obtain SC clearance.

Responsibilities

• Incident Detection, Investigation & Response
• Proactive Security Operations
• Cross-Team Coordination & Remediation Follow-Through
• Collaboration with Security Engineering
• Escalation & Incident Handling
• Regulatory Compliance
• Governance & Reporting

Skills

Microsoft Defender XDR

SIEM & Log Analysis

Vulnerability Management

SC Clearable

Job description

Hamilton Barnes Associates Limited in the United Kingdom is seeking a Senior Security Analyst to deliver dedicated security operations for a client in a regulated industry. You will manage security incidents from detection through resolution and lead proactive activities across hybrid environments.

Collaborate with IT, cloud, engineering and third‑party teams to strengthen the client’s security posture, perform vulnerability assessments, threat hunting and security validation, and ensure