3,924 Network Security jobs in the United Kingdom

• Design, implement, and maintain network security infrastructure, including firewalls, IDS/IPS, and VPNs.
• Conduct regular vulnerability assessments and penetration testing to identify security weaknesses.
• Monitor network traffic and security logs for malicious activity and anomalies.
• Develop and implement security policies, procedures, and best practices.
• Respond to and investigate security incidents, leading remediation efforts.
• Ensure the confidentiality, integrity, and availability of network and data assets.
• Manage and configure security tools and technologies.
• Stay current with emerging security threats, vulnerabilities, and technologies.
• Collaborate with IT and development teams to integrate security into all aspects of the infrastructure.
• Provide expert security guidance and recommendations to stakeholders.

• Proven experience in network security, cybersecurity, or a similar role.
• In-depth knowledge of network protocols, security technologies, and cybersecurity principles.
• Hands-on experience with firewalls, IDS/IPS, SIEM, and endpoint security solutions.
• Familiarity with cloud security concepts and platforms (AWS, Azure, GCP).
• Strong understanding of vulnerability assessment and penetration testing methodologies.
• Excellent analytical, problem-solving, and incident response skills.
• Proficiency in scripting languages (e.g., Python, Bash) is a plus.
• Relevant security certifications (e.g., CISSP, CEH) are highly desirable.
• Bachelor's degree in Computer Science, Information Security, or a related field.

• Designing, implementing, and maintaining network security infrastructure (firewalls, IDS/IPS, VPNs).
• Performing regular vulnerability assessments and penetration testing.
• Developing and enforcing network security policies, standards, and procedures.
• Responding to and investigating security incidents.
• Conducting security audits and risk assessments.
• Monitoring network traffic for security breaches and suspicious activity.
• Collaborating with IT teams to ensure secure network configurations.
• Staying up-to-date with emerging security threats and technologies.
• Mentoring and guiding junior security analysts.
• Providing expert advice on network security best practices.

• BSc in Computer Science, Information Security, or a related field, or equivalent experience.
• Proven experience in network security engineering and administration.
• In-depth knowledge of TCP/IP, routing protocols, and network architecture.
• Expertise with security technologies such as firewalls, IDS/IPS, SIEM, and endpoint protection.
• Experience with incident response and digital forensics.
• Relevant security certifications (e.g., CISSP, CCNA Security, GIAC).
• Strong analytical and problem-solving abilities.

• Design, implement, and manage network security solutions, including firewalls, IDS/IPS, VPNs, and access control systems.
• Monitor network traffic and security logs for suspicious activities and potential breaches.
• Conduct regular vulnerability assessments and penetration tests to identify security weaknesses.
• Develop and maintain security policies, procedures, and standards.
• Respond to security incidents, conduct forensic analysis, and implement remediation plans.
• Stay up-to-date with the latest security threats, vulnerabilities, and countermeasures.
• Collaborate with IT teams to ensure security is integrated into all network design and deployment phases.
• Provide security awareness training to staff.
• Manage security hardware and software, ensuring they are up-to-date and functioning correctly.
• Assist in the development and testing of disaster recovery and business continuity plans.
• Contribute to the continuous improvement of the organization's security posture.

• Bachelor's degree in Computer Science, Cybersecurity, Information Technology, or a related field.
• Minimum of 5 years of experience in network security or a related cybersecurity role.
• In-depth knowledge of network protocols, TCP/IP, and common network architectures.
• Hands-on experience with security technologies such as firewalls (e.g., Palo Alto, Fortinet), IDS/IPS, SIEM (e.g., Splunk, QRadar), and endpoint protection.
• Strong understanding of cybersecurity frameworks and best practices (e.g., NIST, ISO 27001).
• Experience with vulnerability management tools and penetration testing methodologies.
• Excellent analytical, problem-solving, and troubleshooting skills.
• Strong communication and interpersonal skills, with the ability to explain complex security issues to both technical and non-technical audiences.
• Relevant security certifications such as CISSP, CompTIA Security+, CCNA Security, or GIAC are highly desirable.
• Ability to work both independently and collaboratively within a team.

• Design, implement, and maintain network security infrastructure, including firewalls, VPNs, IDS/IPS, and web application firewalls (WAFs).
• Monitor network traffic for security threats and anomalies, performing in-depth analysis of security alerts and incidents.
• Conduct vulnerability assessments and penetration testing on network systems and applications.
• Develop and enforce network security policies, standards, and procedures.
• Manage and configure security devices and software to ensure optimal performance and effectiveness.
• Respond to and investigate security incidents, providing timely and effective remediation.
• Collaborate with IT operations teams to integrate security best practices into network design and deployment.
• Stay current with emerging network security threats, vulnerabilities, and technologies, and recommend appropriate countermeasures.
• Develop and deliver security awareness training related to network security best practices.
• Assist in ensuring compliance with relevant security standards and regulations.

• Bachelor's degree in Computer Science, Cybersecurity, Information Technology, or a related field, or equivalent work experience.
• Minimum of 4 years of experience in network security engineering or a similar role.
• Strong understanding of TCP/IP networking, routing protocols, and network architectures.
• Hands-on experience with network security tools and technologies (e.g., Cisco ASA/Firepower, Palo Alto Networks, Fortinet, Snort).
• Experience with intrusion detection/prevention systems, SIEM solutions, and endpoint security.
• Knowledge of security frameworks such as NIST, ISO 27001, and relevant compliance regulations.
• Excellent analytical, problem-solving, and troubleshooting skills.
• Strong communication and collaboration skills, with the ability to work effectively in a hybrid team environment.
• Relevant security certifications such as CCNA Security, CCNP Security, CompTIA Security+, or CISSP are highly desirable.
• Experience with cloud network security (e.g., AWS, Azure) is a plus.

Network Security Engineer - SC Cleared (or Eligible) - £550 per day - Inside IR35 - Remote - 12 Months initial contract

We are currently working with a leading client in the zero carbon energy sector who are looking to bring on board an experienced Security Engineer to join their security implementation and engineering delivery team.

This is a fantastic opportunity to work on large-scale, business-critical projects in a highly regulated environment.

The Role - 

As part of the security engineering team, you'll be:

• Delivering on the security portfolio, with a focus on SASE and firewall estates.
• Working within a SAFe Agile framework, participating in sprints and stand-ups.
• Managing and tracking workloads via Jira.
• Triaging customer requirements into actionable deliverables.
• Acting as an escalation engineer for the Security Support Team.
• Supporting and mentoring junior engineers.
• Producing documentation and knowledge base material, as well as delivering knowledge transfer sessions.
• Occasionally supporting out-of-hours work.

Technical Skills We're Looking For -

My client is looking for demonstrable experience in as many of the following as possible:

• Enterprise firewalls: Palo Alto (PAN) & Fortinet.
• Management platforms: Panorama, SCM, FortiManager, FortiAnalyzer.
• SASE products/services.
• Load balancers & application delivery - primarily F5.
• Vulnerability & exposure management (e.g. Tenable).
• Email security gateways and hygiene solutions (Mimecast).
• Network routing, switching, access policy administration.
• AWS and Azure security knowledge.
• Documentation: HLDs, LLDs, Security Designs, Risk Assessments, Network Diagrams.

Soft Skills & Background

• Strong stakeholder management and customer-facing skills.
• Ability to work independently and as part of a collaborative team.
• Agile/SAFe delivery experience.
• Background in security operations, compliance, risk, or governance.
• Experience working with an MSSP - desirable.
• Exposure to highly regulated industries - Financial Services experience a strong plus.

Clearance

• SC Clearance (or eligibility to obtain) is required for this role.
• Candidates with current active SC will be prioritised.

Why Apply?

This is an excellent chance to join a forward-thinking organisation investing heavily in their security landscape. You'll be working on enterprise-grade solutions, contributing to critical infrastructure, and expanding your skillset across cloud, network, and security domains.

• Design, implement, and maintain network security infrastructure.
• Manage and configure firewalls, IDS/IPS, VPNs, and other security devices.
• Develop and enforce network security policies and procedures.
• Conduct regular vulnerability assessments and penetration testing.
• Respond to and investigate security incidents and breaches.
• Implement and manage security monitoring and alerting systems.
• Ensure compliance with industry security standards and regulations.
• Collaborate with IT teams on secure network design and deployment.
• Provide expertise on network security best practices.
• Stay updated on emerging cyber threats and security technologies.

• Design, implement, and manage network security solutions, including firewalls, VPNs, intrusion detection/prevention systems (IDPS), and access control mechanisms.
• Monitor network traffic for security breaches and suspicious activities, conducting regular security audits and vulnerability assessments.
• Develop and maintain security policies, procedures, and documentation.
• Respond to security incidents, investigate their root causes, and implement corrective actions to prevent recurrence.
• Ensure compliance with industry security standards and regulatory requirements.
• Collaborate with IT teams to integrate security measures into new and existing network infrastructure.
• Perform regular security patching and updates on network devices and security appliances.
• Provide technical guidance and support on network security best practices to internal teams.
• Stay current with the latest cybersecurity threats, technologies, and mitigation strategies.
• Contribute to disaster recovery and business continuity planning from a network security perspective.

• Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or a related field, or equivalent practical experience.
• Minimum of 5 years of experience in network security engineering or a similar role.
• In-depth knowledge of TCP/IP, routing protocols, and network architecture.
• Hands-on experience with various security technologies such as Cisco ASA/Firepower, Palo Alto, Fortinet, Check Point, IDS/IPS, and SIEM solutions.
• Strong understanding of cybersecurity frameworks (e.g., NIST, ISO 27001).
• Relevant security certifications such as CISSP, CCNA Security, CCNP Security, or equivalent are highly desirable.
• Excellent analytical and problem-solving skills.
• Ability to work effectively both independently and as part of a team in a hybrid environment.

• Design, configure, and manage network security devices, including firewalls, routers, switches, and VPN concentrators.
• Implement and maintain intrusion detection and prevention systems (IDS/IPS).
• Develop and enforce network security policies and procedures.
• Monitor network traffic for security breaches and anomalous activity.
• Conduct regular security audits and vulnerability assessments of the network infrastructure.
• Respond to security incidents, perform root cause analysis, and implement corrective actions.
• Collaborate with network operations teams to ensure network resilience and security.
• Stay up-to-date with the latest network security threats and technologies.
• Provide technical guidance and support on network security matters.
• Ensure compliance with relevant security standards and regulations.

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• Proven experience as a Network Security Engineer or in a similar role.
• Strong understanding of TCP/IP, routing protocols, and network architecture.
• Hands-on experience with various firewall technologies (e.g., Palo Alto, Cisco ASA, Fortinet) and IDS/IPS solutions.
• Familiarity with VPN technologies and network access control (NAC) solutions.
• Knowledge of security best practices and threat landscapes.
• Relevant certifications such as CompTIA Security+, CCNA Security, or CCNP Security are highly desirable.
• Excellent analytical and problem-solving skills.
• Strong communication and interpersonal skills.
• Ability to work effectively in a team and independently.