Network Security Manager in Dartford

We are seeking an experienced Cyber & Network Security Manager to lead the delivery of all security operations, drive cyber incident response, and provide enterprise-wide oversight of network security. This is an operational leadership role at the centre of the cyber defence function. You will be responsible for ensuring the effective operation of Security Operations Centre (SOC), acting as the senior escalation point for cyber security incidents, and providing strategic and operational leadership across network security services.

Working closely with technology, infrastructure, risk, and business stakeholders, you will play a critical role in protecting the organisation from evolving threats while ensuring security controls remain effective, resilient, and aligned to business objectives.

• Lead the day-to-day delivery and continual improvement of Security Operations Centre (SOC) services.
• Act as the senior operational escalation point for cyber security incidents and major security events.
• Own and coordinate cyber incident response activities, ensuring effective containment, eradication, recovery, and lessons learned.
• Develop, maintain, and test cyber incident response plans, procedures, and playbooks.
• Oversee security monitoring, threat detection, threat intelligence, and vulnerability management activities.
• Provide enterprise-wide oversight of network security technologies, controls, and architectures.
• Ensure the effective management and optimisation of firewalls, network access controls, intrusion detection/prevention systems, secure remote access solutions, and related security platforms.
• Lead investigations into security breaches, suspicious activity, and emerging threats.
• Drive continuous improvement across security operations processes, tooling, and capabilities.
• Produce security reporting, metrics, and risk-based recommendations for senior leadership.
• Work collaboratively with infrastructure, cloud, architecture, and service delivery teams to strengthen organisational cyber resilience.
• Support audit, compliance, and regulatory requirements relating to cyber and network security.

You will be an experienced cyber security professional with a strong background in security operations, incident response, and network security management.

• Proven experience leading SOC operations and security monitoring functions.
• Strong knowledge of cyber incident response, digital investigations, and security event management.
• Experience operating and managing security technologies such as SIEM, EDR, firewalls, IDS/IPS, web security gateways, and network access controls.
• Strong understanding of enterprise network security principles and architectures.
• Experience managing security incidents across complex technology environments.
• Knowledge of threat intelligence, vulnerability management, and cyber risk management practices.
• Excellent stakeholder management and communication skills, with the ability to translate technical issues into business impacts.
• The ability to lead under pressure during major incidents and coordinate multi-disciplinary response teams.

• CISSP, CISM, GIAC, GCIH, GCIA, or equivalent security certifications.
• Experience within regulated or critical service environments.
• Knowledge of security frameworks such as NIST CSF, ISO 27001, CIS Controls, or MITRE ATT&CK.
• Experience managing third-party SOC or security service providers.