Senior Security Analyst

Perfect People Recruitment Solutions Ltd; City Of London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading IT services provider in the UK is seeking a Senior Security Analyst to lead its Security Operations function and mentor junior analysts. The role includes managing Microsoft Security Stack and proactive threat hunting. The position offers hybrid working, funded training towards CISSP, and career growth opportunities in a dynamic environment.

Benefits

Funded professional training

Flexible working model

Exposure to cutting-edge tools

Qualifications

• Strong hands-on experience in SIEM tools with a focus on detection and response.
• Solid knowledge of security operations, incident response, and threat analysis.
• A proactive, detail-oriented mindset.

Responsibilities

• Act as the technical lead for two Security Analysts.
• Manage and enhance the Microsoft Security Stack.
• Conduct proactive threat hunting.
• Respond to security incidents with documentation.

Skills

Experience with SIEM tools

Ability to quickly adapt to new security tools

Knowledge of security operations

Mentoring experience

Excellent communication skills

Tools

Microsoft Security Stack

Sentinel

Splunk

Job description

Senior Security Analyst

Location: Hybrid (London/South East)*

A leading, fast-growing IT services provider is looking for a Senior Security Analyst to take a hands‑on lead role within its expanding Security Operations function. This is a fantastic opportunity for an experienced security professional looking to grow into leadership while working across enterprise‑scale environments.

You’ll be the senior member of a small, capable SOC team (mentoring two Security Analysts) and will take ownership of threat detection, investigation, and response across a broad client base. The company will actively support your professional development – including funded training towards CISSP within 12 months – and offers a clear path to progress as the security function scales.

Key Responsibilities

• Act as the technical lead for two Security Analysts, providing guidance and mentoring.
• Manage and enhance the Microsoft Security Stack (Sentinel, Defender, Purview, XDR).
• Drive unified logging and event correlation across cloud, on‑prem, and endpoint sources.
• Conduct proactive threat hunting to identify and mitigate risks early.
• Integrate new systems and log sources consistently within SIEM environments.
• Respond to security incidents, ensuring detailed documentation and root cause analysis.
• Support identity and access management and ensure InfoSec alignment for client requirements.

About You

• Strong hands‑on experience in SIEM tools (e.g., Sentinel, Splunk) with a focus on detection and response.
• Ability to adapt quickly to new or niche security tools.
• Solid knowledge of security operations, incident response, and threat analysis.
• Experience leading or mentoring junior team members is advantageous.
• A proactive, detail‑oriented mindset with excellent communication skills.

Why Apply

• Join a growing MSP delivering secure, enterprise‑scale solutions.
• Step into a technical leadership position with genuine impact.
• Hybrid working model offering flexibility and autonomy.
• Funded professional training and certification support (including CISSP).
• Exposure to cutting‑edge tools and complex, multi‑platform environments.