1 to 25 of 228 Permanent Network Security Jobs in England

Job Title: Cybersecurity Architect Location: London, UK Type: Perm Role (Hybrid 2 days a week) RESPONSIBILITIES Design and implement secure network architectures including firewalls intrusion detection prevention systems and encryption technologies Adhere to enterprise governance review processes to deliver project goals deliverables Follow enterprise ITSM CMDB processes Monitor and analyze security s using Security Information and Event … Management SIEM tools and respond to security incidents in a timely and effective manner Collaborate with cross functional teams to develop and enforce identity and access management IAM policies and network access control NAC solutions Stay abreast of the latest security threats industry trends and best practices to proactively enhance the organization's network security posture Ensure compliance with relevant security regulations and standards and assist in audit processes as needed Conduct regular security assessments including penetration testing and vulnerability assessments to identify and remediate potential security risks ESSENTIAL EXPERIENCE 12 years of Proven experience in network security with a strong understanding of network security fundamentals encryption More ❯

Job Title: Cybersecurity Architect Location: London, UK Type: Perm Role (Hybrid 2 days a week) RESPONSIBILITIES Design and implement secure network architectures including firewalls intrusion detection prevention systems and encryption technologies Adhere to enterprise governance review processes to deliver project goals deliverables Follow enterprise ITSM CMDB processes Monitor and analyze security s using Security Information and Event … Management SIEM tools and respond to security incidents in a timely and effective manner Collaborate with cross functional teams to develop and enforce identity and access management IAM policies and network access control NAC solutions Stay abreast of the latest security threats industry trends and best practices to proactively enhance the organization's network security posture Ensure compliance with relevant security regulations and standards and assist in audit processes as needed Conduct regular security assessments including penetration testing and vulnerability assessments to identify and remediate potential security risks ESSENTIAL EXPERIENCE 12 years of Proven experience in network security with a strong understanding of network security fundamentals encryption More ❯

Job Title: Cybersecurity Architect Location: London, UK Type: Perm Role (Hybrid 2 days a week) RESPONSIBILITIES Design and implement secure network architectures including firewalls intrusion detection prevention systems and encryption technologies Adhere to enterprise governance review processes to deliver project goals deliverables Follow enterprise ITSM CMDB processes Monitor and analyze security s using Security Information and Event … Management SIEM tools and respond to security incidents in a timely and effective manner Collaborate with cross functional teams to develop and enforce identity and access management IAM policies and network access control NAC solutions Stay abreast of the latest security threats industry trends and best practices to proactively enhance the organization's network security posture Ensure compliance with relevant security regulations and standards and assist in audit processes as needed Conduct regular security assessments including penetration testing and vulnerability assessments to identify and remediate potential security risks ESSENTIAL EXPERIENCE 12 years of Proven experience in network security with a strong understanding of network security fundamentals encryption More ❯

Job Description Warwick/Wokingham- 2 Days a week (Hybrid) Network Security JD : Designing, Architect, Implementing and Maintaining an organization's network security infrastructure solutions like Firewalls, IDPS, Proxy, Load Balancers, VPN, WAF etc., align with the organization's strategies, policies, and standards. Design and manage firewall policies, network access controls, AAA mechanisms, MFA, IAM … solutions, RBAC, Privilege Management etc., In-depth understanding of cloud network security, different network architectures (e.g., LAN, WAN, DMZ) and topologies, network protocols, routing, switching, and subnetting. Ensure network security measures are aligned with relevant compliance standards and regulations (e.g., GDPR, HIPAA, PCI DSS). Conduct regular security audits and assessments to identify … and address compliance gaps. Familiarity with industry standards and frameworks like NIST Cybersecurity Framework, ISO 27001, and CIS Critical Security Controls. Familiarity with the use of standard security technology solutions and processes such as user provisioning, directory, SIEM, vulnerability management, Cloud Security (OCI/Azure/AWS), Web Security, Email Security, Logging and Monitoring, General More ❯

Network Security Engineer Location: On-site (5 days per week) Job Type: Permanent Salary: Circa £55,000 Security Clearance: Active SC required, must be eligible for DV We’re offering an exciting opportunity for a passionate Network Security Engineer to join a specialist Information Management function as part of a 24x7 Internal Security Response … ISR) team. As a Network Security Engineer , you’ll play a key role in safeguarding critical network infrastructure, proactively defending against evolving cyber threats, and supporting incident response alongside a skilled SOC team. This is a fantastic opportunity for an engineer with a strong security mindset to work on advanced network protection, optimise security tools, and contribute to major initiatives that strengthen organisational resilience. If you’re looking to make a real impact in a security-first environment, this Network Security Engineer position offers the platform to develop your expertise further. Key Skills & Expertise: • Strong understanding of networking principles (TCP/IP, DNS, routing, switching, VLANs, load balancing) • Expertise configuring More ❯

Network Security Engineer Location: On-site (5 days per week) Job Type: Permanent Salary: Circa £55,000 Security Clearance: Active SC required, must be eligible for DV We’re offering an exciting opportunity for a passionate Network Security Engineer to join a specialist Information Management function as part of a 24x7 Internal Security Response … ISR) team. As a Network Security Engineer , you’ll play a key role in safeguarding critical network infrastructure, proactively defending against evolving cyber threats, and supporting incident response alongside a skilled SOC team. This is a fantastic opportunity for an engineer with a strong security mindset to work on advanced network protection, optimise security tools, and contribute to major initiatives that strengthen organisational resilience. If you’re looking to make a real impact in a security-first environment, this Network Security Engineer position offers the platform to develop your expertise further. Key Skills & Expertise: • Strong understanding of networking principles (TCP/IP, DNS, routing, switching, VLANs, load balancing) • Expertise configuring More ❯

Network Security Engineer Location: On-site (5 days per week) Job Type: Permanent Salary: Circa £55,000 Security Clearance: Active SC required, must be eligible for DV We’re offering an exciting opportunity for a passionate Network Security Engineer to join a specialist Information Management function as part of a 24x7 Internal Security Response … ISR) team. As a Network Security Engineer , you’ll play a key role in safeguarding critical network infrastructure, proactively defending against evolving cyber threats, and supporting incident response alongside a skilled SOC team. This is a fantastic opportunity for an engineer with a strong security mindset to work on advanced network protection, optimise security tools, and contribute to major initiatives that strengthen organisational resilience. If you’re looking to make a real impact in a security-first environment, this Network Security Engineer position offers the platform to develop your expertise further. Key Skills & Expertise: • Strong understanding of networking principles (TCP/IP, DNS, routing, switching, VLANs, load balancing) • Expertise configuring More ❯

and resilient technology solutions. Our team builds and maintains robust infrastructure that safeguards OpenAI's data and systems while ensuring employees are well-equipped and seamlessly connected. By prioritizing security, reliability, and user-centric solutions, we empower OpenAI employees to drive impactful AI research, corporate operations, and product innovation. About the Role As a Network Security Engineer … at OpenAI, you will play a critical role in architecting and maintaining both campus and cloud network infrastructure. You will design and implement secure, scalable, and high-performing network solutions that bridge on-premises environments with public cloud environments. Your expertise in routing and switching will ensure optimal network performance and reliability across diverse environments. You will … drive automation initiatives through Infrastructure-as-Code (IaC) and GitOps methodologies, streamlining network provisioning, enforcing configuration consistency, and optimizing corporate technology workflows. Your responsibilities will also include developing CI/CD pipelines tailored for corporate infrastructure, enhancing deployment efficiency, and integrating robust network security measures. You will establish comprehensive observability and proactive issue resolution strategies. We are More ❯

Senior Cyber Security Analyst (Network Project) Section: Cyber Security Location: 1 Guildhall Square Salary: £46,049 to £58,225 per annum Full Time, Fixed Term for 24 months Closing Date: Thursday 09 October 2025 Reference: 3203525JF About the Role Provide specialist cyber security expertise as a key member of the network project team, ensuring the … secure design and delivery of the Universitys digital network services and defending them against cyber threats. The following information aims to provide potential candidates with a better understanding of the requirements for this role. The Analyst will be responsible for implementing and managing robust network security controls, with a focus on Cisco technologies, to protect against evolving … threats. What youll do - As part of a team of analysts, youll be responsible for the overall day-to-day technical and operational management of cyber and information security within the University. This includes operating within a hybrid Security Operations Centre (SOC) model, leading the investigation and resolution of cybersecurity incidents, and co-ordinating with the Universitys third More ❯

Senior Cyber Security Analyst (Network Project) About the Role Provide specialist cyber security expertise as a key member of the network project team, ensuring the secure design and delivery of the University's digital network services and defending them against cyber threats. The Analyst will be responsible for implementing and managing robust network security … What you'll do As part of a team of analysts, you'll be responsible for the overall day-to-day technical and operational management of cyber and information security within the University. This includes operating within a hybrid Security Operations Centre (SOC) model, leading the investigation and resolution of cyber security incidents, and coordinating with the … to ensure effective threat detection, incident response, and continuous monitoring across the University. Conduct proactive threat hunting activities to detect advanced threats and anomalous behaviour within the University's network, and provide solutions to support incident response, vulnerability management, and strategic security decisions. Collaborate with third-party providers to scope, coordinate, and review network security assessments More ❯

Your new role - Permanent - ON SITE 5 Days per week. - UK Only The principal purpose of this job focusses on information security, cybersecurity and data security, including a wide scope, such as physical security of computer rooms, operating system level security of Windows and Linux, network security of firewall and other security devices … application security both development and testing phrase, terminal security, backup security, third party and supply chain security of IT service provider.Liaison with the Head Office, Security Operation Centre of Data Centre for implementing security policies, projects and security controls. Work with Internal Audit and other departments to execute penetration tests, cybersecurity risk self … assessment, ensure best practice and international baseline standards are in place and in line with local regulations.The ideal candidate will be responsible for managing information security systems, ensuring compliance with regulatory requirements, and conducting thorough security audits.You will be part of the IT committee and work closely with the risk and compliance team.Ideally, having a background in IT More ❯

Senior Security Engineer London Office - Hybrid: 4 days in the office, 1 day working from home Role Overview Our FinTech Client headquartered in London are currently seeking a Senior Security Engineer to embed security throughout their product development lifecycle. You'll work directly with engineering teams to identify and mitigate security risks through threat modeling, secure … code reviews, and integrated security tooling across our web and mobile applications. This role is critical to establishing our secure development practices, implementing industry-standard SSDLC processes, and ensuring our financial products are resilient against evolving threats. Key Responsibilities Secure Development Lifecycle (SDLC) Implementation Design and implement secure software development practices Integrate security gates into CI/CD … pipelines following DevSecOps principles Establish security quality gates and acceptance criteria Develop secure coding standards based on OWASP guidelines Create security architecture patterns and reference implementations Security Code Reviews & Testing Conduct in-depth security code reviews for critical features Implement automated security testing (SAST, DAST, IAST, SCA) Configure and tune security scanning tools (Aquasec More ❯

Senior Security Engineer London Office - Hybrid: 4 days in the office, 1 day working from home Role Overview Our FinTech Client headquartered in London are currently seeking a Senior Security Engineer to embed security throughout their product development lifecycle. You'll work directly with engineering teams to identify and mitigate security risks through threat modeling, secure … code reviews, and integrated security tooling across our web and mobile applications. This role is critical to establishing our secure development practices, implementing industry-standard SSDLC processes, and ensuring our financial products are resilient against evolving threats. Key Responsibilities Secure Development Lifecycle (SDLC) Implementation Design and implement secure software development practices Integrate security gates into CI/CD … pipelines following DevSecOps principles Establish security quality gates and acceptance criteria Develop secure coding standards based on OWASP guidelines Create security architecture patterns and reference implementations Security Code Reviews & Testing Conduct in-depth security code reviews for critical features Implement automated security testing (SAST, DAST, IAST, SCA) Configure and tune security scanning tools (Aquasec More ❯

Senior Security Engineer London Office - Hybrid: 4 days in the office, 1 day working from home Role Overview Our FinTech Client headquartered in London are currently seeking a Senior Security Engineer to embed security throughout their product development lifecycle. You'll work directly with engineering teams to identify and mitigate security risks through threat modeling, secure … code reviews, and integrated security tooling across our web and mobile applications. This role is critical to establishing our secure development practices, implementing industry-standard SSDLC processes, and ensuring our financial products are resilient against evolving threats. Key Responsibilities Secure Development Lifecycle (SDLC) Implementation Design and implement secure software development practices Integrate security gates into CI/CD … pipelines following DevSecOps principles Establish security quality gates and acceptance criteria Develop secure coding standards based on OWASP guidelines Create security architecture patterns and reference implementations Security Code Reviews & Testing Conduct in-depth security code reviews for critical features Implement automated security testing (SAST, DAST, IAST, SCA) Configure and tune security scanning tools (Aquasec More ❯

Senior Security Engineer London Office - Hybrid: 4 days in the office, 1 day working from home Role Overview Our FinTech Client headquartered in London are currently seeking a Senior Security Engineer to embed security throughout their product development lifecycle. You'll work directly with engineering teams to identify and mitigate security risks through threat modeling, secure … code reviews, and integrated security tooling across our web and mobile applications. This role is critical to establishing our secure development practices, implementing industry-standard SSDLC processes, and ensuring our financial products are resilient against evolving threats. Key Responsibilities Secure Development Lifecycle (SDLC) Implementation Design and implement secure software development practices Integrate security gates into CI/CD … pipelines following DevSecOps principles Establish security quality gates and acceptance criteria Develop secure coding standards based on OWASP guidelines Create security architecture patterns and reference implementations Security Code Reviews & Testing Conduct in-depth security code reviews for critical features Implement automated security testing (SAST, DAST, IAST, SCA) Configure and tune security scanning tools (Aquasec More ❯

Senior Security Engineer London Office - Hybrid: 4 days in the office, 1 day working from home Role Overview Our FinTech Client headquartered in London are currently seeking a Senior Security Engineer to embed security throughout their product development lifecycle. You'll work directly with engineering teams to identify and mitigate security risks through threat modeling, secure … code reviews, and integrated security tooling across our web and mobile applications. This role is critical to establishing our secure development practices, implementing industry-standard SSDLC processes, and ensuring our financial products are resilient against evolving threats. Key Responsibilities Secure Development Lifecycle (SDLC) Implementation Design and implement secure software development practices Integrate security gates into CI/CD … pipelines following DevSecOps principles Establish security quality gates and acceptance criteria Develop secure coding standards based on OWASP guidelines Create security architecture patterns and reference implementations Security Code Reviews & Testing Conduct in-depth security code reviews for critical features Implement automated security testing (SAST, DAST, IAST, SCA) Configure and tune security scanning tools (Aquasec More ❯

Reporting to the Head of Network & Operations, the Network Engineers are responsible for supporting the evolution of the company's Network from its current test lab environment at their datacenter through to the upcoming network deployment and the continuous expansion plan. The network, which is multi-vendor and white label, is at the leading edge … of next-generation network design and will inspire the imagination and curiosity of highly technical network engineers with previous experience as senior network engineers within an ISP or Carrier environment. Ideally, candidates will have significant network engineering experience to at least CCNP/JNCP level and will be striving for CIIE, within a carrier/ISP … environment. This role is probably not suitable for an Enterprise-based NW Engineer. The key deliverables for the Network Engineers will include: Taking engineering accountability for this innovative start-up's Next Generation ISP/Carrier network throughout its evolution. Handling day-to-day Network Management tasks such as troubleshooting network issues. Configuring network hardware More ❯

An exciting opportunity for a passionate Network Security Engineer to join a unique, multi-national Information Management function. Ideal candidates should be committed to protecting our critical systems and ensuring the integrity and security of our network infrastructure. Salary : Circa £55,000depending on experience + shift allowance Dynamic (hybrid) working : 5 days per week on-site … due to workload classification, working a 24/7 Shift Pattern Security Clearance : British Citizen This role will require DV Clearance. Restrictions and/or limitations relating to nationality and/or rights to work may apply. As a minimum and after offer stage, all successful candidates will need to undergo HMG Basic Personnel Security Standard checks (BPSS … and a Security Check (SC) clearance, which are managed by the MBDA Personnel Security Team. What we can offer you: Company bonus : Up to £2,500 (based on company performance and will vary year to year) Pension : maximum total (employer and employee) contribution of up to 14% Overtime: opportunity for paid overtime Flexi Leave: Up to 15 additional More ❯

Role: Cyber Security Engineer Location: Leeds, West Yorkshire Salary: £55,000 - £70,000 PLUS 25 Days Holiday, Vendor Certifications, International Travel, Private Pension About the Company: Our client, a global leader in Sustainability Consulting, is looking for a Cyber Security Engineer to join their growing Information Security Team. This exciting role provides an opportunity to shape and … strengthen security practices across the organization. If you are passionate about cybersecurity, have a strong technical background, and thrive in a fast-paced environment, we want to hear from you. Position Overview: As a Cyber Security Engineer, you will collaborate with the IT Security Team to advise, develop, and maintain security processes and policies. Your expertise … will guide the organization in enhancing security capabilities across its global infrastructure. This role offers a chance to make a real impact by ensuring the integrity and resilience of the company’s IT environment against evolving cyber threats. Key Responsibilities: Support incident management and security response efforts, providing expertise to address and resolve security incidents quickly and More ❯

Network Security Manager – Nottinghamshire (Hybrid, 3 Days On-Site) E-Commerce Transformation | Cloud Migration | Leadership & Strategy We’re looking for a Network Security Manager to lead a team of four engineers while remaining hands-on with a large and complex security estate. This is a 50/50 technical and leadership role , where you’ll … while still getting under the hood of projects and escalations. 🔧 What You’ll Be Doing: Leading and mentoring a team of 4 engineers (firewalls + digital platform) Owning the network security roadmap and strategy – delivering technical direction and solutions Acting as technical escalation point across firewalls, VPNs, WAF, SASE, and CDN security Splitting time across projects … and BAU/escalation support (50%) Overseeing security integration projects following acquisitions and DC migrations Driving the cloud security agenda – Azure, GCP, and private cloud environments Running 1-2-1s, training plans, and development for team members 🧠 What You’ll Bring: Strong experience in network and application security Hands-on knowledge of: Akamai/CDN More ❯

Network Security Manager – Nottinghamshire (Hybrid, 3 Days On-Site) E-Commerce Transformation | Cloud Migration | Leadership & Strategy We’re looking for a Network Security Manager to lead a team of four engineers while remaining hands-on with a large and complex security estate. This is a 50/50 technical and leadership role , where you’ll … while still getting under the hood of projects and escalations. 🔧 What You’ll Be Doing: Leading and mentoring a team of 4 engineers (firewalls + digital platform) Owning the network security roadmap and strategy – delivering technical direction and solutions Acting as technical escalation point across firewalls, VPNs, WAF, SASE, and CDN security Splitting time across projects … and BAU/escalation support (50%) Overseeing security integration projects following acquisitions and DC migrations Driving the cloud security agenda – Azure, GCP, and private cloud environments Running 1-2-1s, training plans, and development for team members 🧠 What You’ll Bring: Strong experience in network and application security Hands-on knowledge of: Akamai/CDN More ❯

Network Engineer Network Security Specialist Location: Leeds City Centre (Hybrid: 3 days in the office, 2 days remote) Job Type: Full-Time Reports To: Security Operations Manager Salary: £30,000 £45,000 + On-Call Allowance + Benefits Working Hours: 09:3018:00 (core business hours are 08:0018:00) On-Call: 1-in-4 rotation … with allowance, providing 24/7 coverage Company Overview A trusted cybersecurity reseller and managed services provider (MSP) delivering end-to-end security solutions to organizations of all sizes. The team supports a broad range of cutting-edge security technologies, helping customers secure their networks, applications, and infrastructure through proactive monitoring, management, and incident response. As demand for … managed firewall and security services grows, my client is looking for a Network Engineer with strong networking fundamentals and a willingness to learn advanced security technologies. This role is ideal for someone with 12 years of experience who wants to develop their skills in a supportive, growth-focused environment. Role Overview As a Network Engineer within More ❯

Senior Network Engineer – Contract £400 Circa PD (Inside IR35) 6 Months London or Oxford x 3 days PW An excellent opportunity has arisen with a brilliant life science company for an experienced Network Engineer. The Network Engineer will be responsible for the design, implementation, maintenance, and support of the organization's network infrastructure. This includes ensuring … network availability, performance, security, and scalability to meet the organization's needs. Role and Responsibilities: Design and implement network infrastructure including LANs, WANs, WLANs, VPNs, and other network devices. Configure and maintain network equipment such as routers, switches, firewalls, and load balancers. Monitor network performance and troubleshoot network issues, ensuring high availability and … reliability. Implement network security measures to protect data, systems, and networks from unauthorized access or breaches. Collaborate with other IT teams to integrate network infrastructure with other systems and applications. Evaluate and recommend new network technologies and solutions to improve efficiency, performance, and security. Develop and maintain network documentation, including network diagrams, configurations, and More ❯

Network Security Engineer (SOC) A leading international defence organisation is seeking a skilled Network Security Engineer to join their 24/7 Internal Security Response (ISR) team. This is a unique opportunity to play a critical role in safeguarding network infrastructure, responding to incidents, and ensuring resilience against evolving cyber threats. What you’ll … do: • Work as part of a 24/7 SOC team, supporting incident response, triage, and proactive defence. • Design, implement, and maintain secure network solutions to defend against advanced threats. • Configure, monitor, and troubleshoot enterprise firewalls (Cisco, Checkpoint, Palo Alto). • Manage secure proxy solutions (Bluecoat, F5) including SSL inspection, filtering, and monitoring. • Optimise and standardise network security … of networking (TCP/IP, DNS, routing, VLANs, load balancing). • Hands-on experience with next-gen firewalls, IPS/IDS, SSL decryption, and deep packet inspection. • Proficiency in security protocols (IPSec, SSL/TLS, VPNs, MFA). • Experience with monitoring tools (PRTG, Nagios) and SIEM/packet capture solutions. • Ability to analyse malicious traffic, detect attacker behaviours, and More ❯

Network Security Engineer (SOC) A leading international defence organisation is seeking a skilled Network Security Engineer to join their 24/7 Internal Security Response (ISR) team. This is a unique opportunity to play a critical role in safeguarding network infrastructure, responding to incidents, and ensuring resilience against evolving cyber threats. What you’ll … do: • Work as part of a 24/7 SOC team, supporting incident response, triage, and proactive defence. • Design, implement, and maintain secure network solutions to defend against advanced threats. • Configure, monitor, and troubleshoot enterprise firewalls (Cisco, Checkpoint, Palo Alto). • Manage secure proxy solutions (Bluecoat, F5) including SSL inspection, filtering, and monitoring. • Optimise and standardise network security … of networking (TCP/IP, DNS, routing, VLANs, load balancing). • Hands-on experience with next-gen firewalls, IPS/IDS, SSL decryption, and deep packet inspection. • Proficiency in security protocols (IPSec, SSL/TLS, VPNs, MFA). • Experience with monitoring tools (PRTG, Nagios) and SIEM/packet capture solutions. • Ability to analyse malicious traffic, detect attacker behaviours, and More ❯