As a Senior Cyber Security Analyst, you will play a critical role in strengthening digital defences by maintaining and optimising security operations tools and processes. You'll focus on monitoring, analysing, and responding to cyber threats, while supporting the SOC team and ensuring effective incident management across the business.
Your role will involve collaborating with technology and business stakeholders, investigating security alerts, enhancing tooling performance, and supporting the delivery of continuous improvement and risk reduction initiatives. You'll also contribute to readiness for significant incidents and play a key role in proactive threat hunting and compliance reporting.
What you'll be doing as a Senior Cyber Security Analyst:
- Security Incident Response: Investigate security alerts from SIEM and third-party MSSPs, triage and respond to incidents, and support root cause analysis to drive remediation.
- Stakeholder Engagement: Work closely with technology and business teams to communicate cyber risks, recommend actions, and ensure proportionate implementation of controls.
- Tool Performance & Optimisation: Monitor and enhance the performance of SecOps tools such as Microsoft Sentinel, PAM, and EDR/XDR systems, including alert tuning and automation.
- SOC Support & Escalation: Act as a key contact and escalation point for the SOC team, providing guidance and mentoring to support operational effectiveness.
- On-Call & Incident Readiness: Participate in a 24/7/365 on-call rota with our MSSP partners, supporting out-of-hours investigations and maintaining incident readiness.
- Threat Hunting & Continuous Improvement: Perform proactive threat hunting, recommend new security controls, and contribute to continuous improvement of SecOps processes.
- Compliance & Documentation: Maintain security documentation, support GDPR, NIS, and ISO 27001 compliance, and collect metrics to report on operational effectiveness and risk posture.
Base Location: Hybrid - With travel to offices 2 days per week
Working Pattern: Full Time / 36 Hours per week
What you should bring to the role:
Essential Experience:
- Minimum of 3 years in a technical cybersecurity role, ideally within a large enterprise* Experience working in or with a Security Operations Centre (SOC)* Structured approach to incident triage and issue resolution* Experience remediating cyber risks in complex digital environments* Working with third-party security partners or MSSPs
Essential Technical Skills & Qualifications:
- Strong knowledge of IT infrastructure, networking, and end-user computing
- Experience with SIEM tools, particularly Microsoft Sentinel
- Ability to write and tune Kusto Query Language (KQL) queries
- Hands-on experience with PAM, MFA, and other SecOps tools
- Excellent communication skills with the ability to explain technical issues to non-technical stakeholders
Desirable Skills & Qualifications:
- Microsoft Security certifications (e.g. SC-200, AZ-900)
- Cybersecurity certifications such as CISSP, CISM, or CCS
- Degree in Cyber Security, Computer Science, or related field
- Familiarity with firewalls, IDS/IPS, VPNs, and NAC
- Experience mentoring or leading SOC analysts
GCS is acting as an Employment Agency in relation to this vacancy.
Senior SOC Analyst
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