2,793 Network Security jobs in the United Kingdom

• Designing, implementing, and managing network security solutions, including firewalls, VPNs, IDS/IPS, and access control systems.
• Monitoring network traffic for security breaches and suspicious activities.
• Conducting regular security assessments, vulnerability scans, and penetration tests.
• Developing and enforcing security policies and procedures.
• Responding to security incidents and developing incident response plans.
• Ensuring compliance with relevant security standards and regulations.
• Collaborating with IT teams to implement security best practices across all systems.
• Staying up-to-date with the latest cybersecurity threats and technologies.
• Providing technical expertise and support on network security matters.
• The successful candidate will possess a Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent practical experience. Certifications such as CISSP, CCNA Security, or CompTIA Security+ are highly desirable. A minimum of 3-5 years of experience in network security or a related cybersecurity role is required. Proficiency in network protocols, operating systems (Windows, Linux), and security tools is essential. Strong analytical and problem-solving skills, excellent communication abilities, and the capacity to work independently in a remote environment are crucial. Join our client in their mission to safeguard their digital assets, working from anywhere in the UK in this dynamic and vital role. This is a fantastic opportunity for a cybersecurity professional to make a significant impact.

• Minimum of 6 years of experience in network security and cybersecurity.
• In-depth knowledge of TCP/IP, routing protocols, and network security best practices.
• Hands-on experience with security tools such as Cisco ASA, Palo Alto, Fortinet, Snort, Wireshark.
• Proven experience in incident response, vulnerability management, and SIEM solutions (e.g., Splunk, QRadar).
• Relevant certifications such as CISSP, CCNA Security, CCNP Security, or GIAC are highly preferred.
• Excellent analytical and problem-solving skills, with the ability to work under pressure.
• Strong understanding of cloud security principles (AWS, Azure, GCP).
• Excellent communication and teamwork skills.
• Bachelor's degree in Computer Science, Information Technology, or a related field.

• Monitor network traffic and systems for security breaches, anomalies, and vulnerabilities using SIEM tools.
• Implement and manage firewalls, intrusion detection/prevention systems (IDS/IPS), VPNs, and other security technologies.
• Conduct regular vulnerability assessments and penetration testing to identify weaknesses.
• Develop and enforce security policies, standards, and procedures across the organization.
• Respond to and investigate security incidents, developing containment and eradication strategies.
• Manage security awareness training programs for employees.
• Stay abreast of the latest cybersecurity threats, trends, and technologies.
• Collaborate with IT teams to ensure security is integrated into all system designs and deployments.
• Maintain accurate documentation of network security configurations and incident reports.
• Participate in disaster recovery and business continuity planning.

• Proven experience in network security, cybersecurity operations, or a related IT security role.
• Strong knowledge of TCP/IP, routing protocols, network segmentation, and network architecture.
• Hands-on experience with security tools such as firewalls (e.g., Palo Alto, Cisco ASA), IDS/IPS, SIEM (e.g., Splunk, ELK Stack), and endpoint security solutions.
• Familiarity with common cyberattack vectors and mitigation techniques.
• Relevant certifications such as CompTIA Security+, CISSP, CCNA Security, or GIAC.
• Excellent analytical and problem-solving skills.
• Strong communication skills, with the ability to explain complex technical concepts to non-technical audiences.
• Ability to work independently and manage priorities in a remote setting.
• Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or a related field, or equivalent practical experience.

• Designing, implementing, and managing network security solutions, including firewalls, IDS/IPS, VPNs, and endpoint security.
• Monitoring network traffic and system logs for security breaches and suspicious activities.
• Conducting vulnerability assessments and penetration tests to identify and mitigate security risks.
• Responding to and investigating security incidents, providing timely resolution and post-incident analysis.
• Developing and updating network security policies, procedures, and guidelines.
• Configuring and maintaining security infrastructure across various network environments.
• Staying current with emerging security threats, vulnerabilities, and technologies.
• Collaborating with IT teams to ensure the security of all network infrastructure and systems.
• Providing security awareness training to staff.
• Ensuring compliance with relevant data protection regulations and industry standards.

• Design, deploy, and manage cloud-native security controls and services (e.g., Security Groups, Network ACLs, Firewalls, WAFs, VPNs).
• Develop and enforce network security policies, standards, and procedures for cloud environments.
• Implement and manage identity and access management (IAM) solutions in the cloud.
• Monitor cloud network traffic for security threats, anomalies, and policy violations using SIEM and other security tools.
• Conduct regular vulnerability assessments and penetration testing of cloud infrastructure.
• Respond to and investigate security incidents, providing timely resolution and post-incident analysis.
• Collaborate with DevOps and Engineering teams to integrate security into CI/CD pipelines.
• Develop and maintain automation scripts for security tasks and deployments.
• Ensure compliance with relevant security regulations and standards (e.g., GDPR, ISO 27001).
• Provide expert guidance and recommendations on cloud security best practices.
• Stay current with the latest cloud security threats, vulnerabilities, and technologies.

Team purpose

We are here to change lives through better sight and hearing by delivering outstanding value, being loved by every customer and creating the place where all colleagues are proud to belong as we grow our business.

The Network Platform team will own and develop (with the Enterprise Architecture team) the strategic network roadmap. Delivering changes, product development and maintenance required to achieve the objectives of the roadmaps. The team will also provide support and technical expertise in the case of a major incident. They work closely with third-party partners to deliver a safe, resilient, robust Network Platform and continuously review the industry and market, testing new concepts and technologies that can add value.

Your purpose

The Network Security Engineer supports the Lead Network Security Engineer in delivering the Network Security Roadmap. This role supports the implementation of Infosec-driven initiatives and acts as the second line of escalation for Network Security Incidents and ad hoc service and portfolio support requests. This role is accountable for establishing and maintaining secure network configurations, including firewalls, routers, switches, and VPNs, and periodically reviewing firewall rules and user access to the network. The Network Security Engineer focuses on continuous improvement through automation and tooling, working with Security Operations to monitor and analyse network traffic for malicious activity or potential breaches. Additionally, this role implements network access controls, enforces robust patch management for network devices, and works with network security partners to identify network vulnerabilities, planning and implementing upgrades to ensure the highest standards of network security.

This role is required to participate in an on-call rota for out-of-hours escalations for the Global Network Team.

Your role

• Support Network Security Roadmap: Assist in delivering the Network Security Roadmap.

• Subject Matter Expertise: Provide network subject matter expertise on Infosec-driven initiatives.

• Incident Escalation: Second line of escalation for network security incidents, as well as specific security Service and Portfolio Requests i.e. Meraki configuration and firewall changes.

• On Call Rota: Participate in on-call rota and occasionally work out of regular business hours to facilitate change management and incident resolution.

• Secure Network Configurations: Establish and maintain secure network configurations including Cisco Meraki and Palo Alto firewalls, routers, switches, and VPNs.

• Firewall and Access Review: Periodically review firewall rules and user access to the network.

• Continuous Improvement: Focus on continuous improvement through automation and tooling.

• Monitoring and Analysis: Collaborate with Security Operations to monitor and analyse network traffic for malicious activity or potential breaches.

• Access Controls: Implement network access controls to ensure only authorised users and devices can access specific network segments.

• Vulnerability and Patch Management: Identify and manage the remediation of network vulnerabilities and upgrades to ensure the highest standards of network security. This includes vulnerability management of the store Meraki estate. Perform robust patch management for network devices.

• IT Values Commitment: Champion and commit to performing the role within recognised Values & Behaviours.

What you'll bring

• Advanced Expertise in network solutions including MPLS, Internet, Cloud services, Firewalls, Routers, switches, Palo Alto, Meraki, and Cisco services.

• Bachelor's degree in relevant field and/or industry recognised certifications i.e. Cisco Certified Network Associate (CCNA).

• Proficiency in establishing secure network configurations, including firewalls, routers, switches, and VPNs.

• Experience with network access controls, vulnerability and patch management.

• Experience in implementing network-security solutions.

• Excellent verbal and written communication skills to articulate technical concepts to both technical and non-technical stakeholders.

• Expertise in monitoring and analysing network performance and incidents.

• Previous experience participating in on-call rotations and managing out-of-hours incidents effectively.

• Strong analytical skills to assess complex technical problems and develop effective solutions.

• Expertise in troubleshooting and resolving network security-related issues.

• Ability to work closely with cross-functional teams, including architecture, infosec and regional implementation teams.

• Dedication to performing the role within recognised values and behaviours.