Senior Security Analyst
Perfect People
Aylesbury, United Kingdom
22 days ago
Role details
Contract type
Permanent contract Employment type
Full-time (> 32 hours) Working hours
Regular working hours Languages
English Experience level
Senior Compensation
£ 58KJob location
Aylesbury, United Kingdom
Tech stack
Computer Security
Microsoft Security Essentials
Security Information and Event Management
Software Vulnerability Management
Cybercrime
Microsoft Sentinel
Splunk
Cisco networks
Vulnerability Analysis
Job description
- Lead and investigate high-impact cyber security incidents across global customer environments.
- Proactively hunt for threats, triage alerts, and identify anomalous behaviours before they escalate.
- Manage vulnerability assessments end-to-end, driving remediation outcomes with customers and internal teams.
- Optimise the Microsoft Security Stack: Sentinel, Defender (for Endpoint/Identity), Purview, and XDR.
- Support Zero Trust adoption, GRC initiatives, and audit/compliance reporting (ISO27001, NIST, SOC2, CE+).
- Centralise and improve visibility of security events by unifying logs across cloud, on-prem, applications, and endpoints.
- Integrate new log sources and systems into SIEM platforms, ensuring consistent data quality and alerting.
- Mentor and guide two L1 analysts, acting as the senior escalation point for investigation and tooling queries.
- Bring curiosity and adaptability to work with less-common or "odd" security tools found in diverse MSP environments., * Work at the cutting edge of security in a global MSP with enterprise clients and complex estates.
- Move beyond "keeping the lights on" - contribute to strategy, tooling improvement, and advanced threat detection.
- Career pathways into senior engineering, incident response leadership, or architecture roles.
- Ongoing funded training and certification investment.
- Opportunity to cross-train into wider InfoSec disciplines including GRC, Zero Trust, and compliance.
Requirements
- Industry certifications such as Security+, ISC2 CC, Cisco, or equivalent.
- Progress toward Microsoft security certifications: AZ-900, SC-200, SC-500 (SC-100 ideal).
- 3+ years of technical cyber security experience, preferably in an MSP, Enterprise SOC, or consultancy.
- Hands-on experience with Microsoft Sentinel, Defender, Purview, and XDR.
- Broad SIEM capability: ideally Microsoft Sentinel or Splunk-and able to go beyond dashboards to build detections, correlations, and meaningful insights.
- Experience centralising log sources and onboarding new tools and data feeds into a SIEM/SOAR platform.
- Strong understanding of threat hunting methodologies, vulnerability management, and incident response.
- Knowledge of frameworks: ISO27001, NIST CSF, SOC2, Cyber Essentials Plus.
- Comfortable adapting to unfamiliar tooling and integrating new technologies quickly.
About the company
Our client, a leading global Managed Service Provider, is seeking a Senior Cyber Security Analyst to join and strengthen their growing security practice. This hands-on role sits at the forefront of defending enterprise-scale environments, offering exposure to varied client infrastructures, advanced tooling, and complex security challenges.
You'll play a key part in maturing the security function-leading incident investigations, enhancing threat visibility, and mentoring the next generation of analysts-while continuously developing your skills with funded training and certification pathways.