Cyber Security Specialist

South East London (Hybrid, 2 days on site)

Cyber Security Lead

3 Month Contract

Paying £400-£420 per day Inside of IR35

Job purpose

The Cyber Security Lead is responsible for protecting the organisation’s information systems, users, and data while actively leading the continuous improvement of the organisation’s cyber security posture

The role combines hands‐on operational cyber security support with ownership of the cyber maturity journey, proactively identifying risks, recommending improvements, and driving changes that strengthen resilience, reduce exposure, and support safe digital transformation.

Key responsibilities:

Cyber Security Operations:

• Monitor, investigate, and respond to security alerts, events, and incidents across the organisation’s technology estate
• Act as a key responder for cyber security incidents, coordinating containment, remediation, root cause analysis, and lessons learned
• Administer, configure, and optimise Microsoft 365 security controls, including Microsoft Defender, Entra ID (Azure AD), Conditional Access, and information protection tools
• Maintain and improve endpoint, email, identity, and cloud security configurations
• Conduct regular reviews of logs, alerts, and telemetry to identify threats, trends, and control weakness

Essential criteria

• Experience working in a cyber security, IT security, or information security role.
• Strong understanding of modern cyber threats, attack techniques, and defensive controls.
• Hands‐on experience with Microsoft 365 security technologies (Defender, Entra ID, Conditional Access, Intune, or similar).
• Hands‐on experience configuring and managing firewalls and network security controls (e.g. NGFWs, VPNs, access rules, network segmentation).
• Strong understanding of network security concepts, including TCP/IP, DNS, routing, firewall rule design, and secure network architectures.
• Experience reviewing firewall rulesets and improving them from a security and operational perspective.
• Ability to assess and remediate network‐level security risks.
• Experience responding to and investigating cyber security incidents.
• Ability to assess cyber risks and make clear, proportionate recommendations.
• Strong communication skills, with the ability to explain cyber risks to non‐technical audiences.
• A proactive mindset with a passion for improving security, not just maintaining it.

Please apply online today if you would like to speak about the role.