1 to 25 of 161 Network Security Jobs in London

Job Title: Network Security Engineer Location: Seattle, WA Job Description: We are looking for a skilled Network Security Engineer with expertise in Cisco technologies to join our team in Seattle, WA. As a Network Security Engineer, you will be responsible for designing, implementing, and maintaining secure network infrastructures to protect our organization's … data and systems from cyber threats. Key Responsibilities: - Design, implement, and maintain network security measures to protect organization's data and systems - Monitor network traffic for potential security breaches and respond appropriately to incidents - Conduct regular security audits and vulnerability assessments to identify and address security risks - Collaborate with cross-functional teams to implement … security policies and procedures - Provide technical support and guidance to IT staff on network security best practices - Stay up-to-date on latest security trends and technologies to continuously improve network security measures Qualifications: - Bachelor's degree in Computer Science, Engineering, or related field - 3+ years of experience in network security engineering More ❯

Job Title: Network Security Engineer Location: Seattle, WA Job Description: We are looking for a skilled Network Security Engineer with expertise in Cisco technologies to join our team in Seattle, WA. As a Network Security Engineer, you will be responsible for designing, implementing, and maintaining secure network infrastructures to protect our organization's … data and systems from cyber threats. Key Responsibilities: - Design, implement, and maintain network security measures to protect organization's data and systems - Monitor network traffic for potential security breaches and respond appropriately to incidents - Conduct regular security audits and vulnerability assessments to identify and address security risks - Collaborate with cross-functional teams to implement … security policies and procedures - Provide technical support and guidance to IT staff on network security best practices - Stay up-to-date on latest security trends and technologies to continuously improve network security measures Qualifications: - Bachelor's degree in Computer Science, Engineering, or related field - 3+ years of experience in network security engineering More ❯

Expert Systems Engineer USA OR London, United Kingdom Shared services Permanent Remote Overview The Nutanix Flow Network Security Architect is responsible for designing, implementing, and managing network security solutions within the Nutanix Flow environment. This role involves ensuring the security, integrity, and availability of network resources and data across the Nutanix infrastructure. The architect … will work closely with IT teams, security professionals, and stakeholders to develop and enforce security policies, manage security tools, and respond to security incidents. Key Responsibilities Design and Architecture : Develop and implement network security architectures and solutions within the Nutanix Flow environment. Policy Development : Create and enforce security policies and procedures to protect … network resources and data. Security Management : Manage and maintain security tools and technologies, including firewalls, intrusion detection/prevention systems, and VPNs. Incident Response : Lead and coordinate responses to security incidents, including investigation, mitigation, and reporting. Compliance : Ensure compliance with relevant security standards and regulations, such as GDPR, HIPAA, and PCI-DSS. Collaboration : Work with More ❯

Expert Systems Engineer USA OR London, United Kingdom Shared services Permanent Remote Overview The Nutanix Flow Network Security Architect is responsible for designing, implementing, and managing network security solutions within the Nutanix Flow environment. This role involves ensuring the security, integrity, and availability of network resources and data across the Nutanix infrastructure. The architect … will work closely with IT teams, security professionals, and stakeholders to develop and enforce security policies, manage security tools, and respond to security incidents. Key Responsibilities Design and Architecture : Develop and implement network security architectures and solutions within the Nutanix Flow environment. Policy Development : Create and enforce security policies and procedures to protect … network resources and data. Security Management : Manage and maintain security tools and technologies, including firewalls, intrusion detection/prevention systems, and VPNs. Incident Response : Lead and coordinate responses to security incidents, including investigation, mitigation, and reporting. Compliance : Ensure compliance with relevant security standards and regulations, such as GDPR, HIPAA, and PCI-DSS. Collaboration : Work with More ❯

Security Analyst (Network & Support) Location - London (Hybrid) Duration - 6 Months (Initially) Rate - £450 (A day) IR35 - Outside IR35 Summary To be part of Digital Services, actively contributing as a member of the Infrastructure and Operations Team to support and develop the Network Infrastructure, Services, and Security. Provide 3rd line support for all wired, Wi-Fi, and remote … access network services to staff, students, contractors, and visitors. Act as a key point of reference in network security, contributing to the implementation, development, provisioning, and operational support of network dependencies. The post holder will be expected to support the designing, implementation, and maintenance of our client's Network Security Infrastructure to protect against … cyber threats. Accountabilities and Responsibilities Security Operations Support Serve as a reference point for network security across IT teams, providing guidance and specialised expertise on security measures. Conduct vulnerability assessments, security audits, and continuous monitoring of network traffic for anomalies using advanced security tools. Collaborate with IT teams to ensure security measures More ❯

Security Analyst (Network & Support) Location - London (Hybrid) Duration - 6 Months (Initially) Rate - £450 (A day) IR35 - Outside IR35 Summary To be part of Digital Services, actively contributing as a member of the Infrastructure and Operations Team to support and develop the Network Infrastructure, Services, and Security. Provide 3rd line support for all wired, Wi-Fi, and remote … access network services to staff, students, contractors, and visitors. Act as a key point of reference in network security, contributing to the implementation, development, provisioning, and operational support of network dependencies. The post holder will be expected to support the designing, implementation, and maintenance of our client's Network Security Infrastructure to protect against … cyber threats. Accountabilities and Responsibilities Security Operations Support Serve as a reference point for network security across IT teams, providing guidance and specialised expertise on security measures. Conduct vulnerability assessments, security audits, and continuous monitoring of network traffic for anomalies using advanced security tools. Collaborate with IT teams to ensure security measures More ❯

Role: Security Engineer Location: London, UK (Hybrid) Hiring Type: Contract/Permanent Role The below is a desirable list as opposed to essential requirements. If a candidate has some of the below, they will still be considered. 1. Proactively use security engineering tools to identify and mitigate network & security risks. 2.Develop and implement security measures … using specialised tools based on Cyber security best practices. 3. Support and build network segmentation capabilities, including deciding on the granularities of segmentation from a threat-led perspective (e.g., application level, environment level, network level, network policies, mapping attack paths, and building mitigations). 4. Hands-on exposure and knowledge of Cyber & network security … and using CI/CD technologies, such as Azure DevOps. 6· Hands-on experience working with cloud networking with a focus on security. For example, working with virtual networks, network security groups, virtual firewalling, Web Application Firewalls, and cloud networking security monitoring. 7· Previous experience working with security best practices – e.g. Zero trust, defence in depth More ❯

Role: Security Engineer Location: London, UK (Hybrid) Hiring Type: Contract/Permanent Role The below is a desirable list as opposed to essential requirements. If a candidate has some of the below, they will still be considered. 1. Proactively use security engineering tools to identify and mitigate network & security risks. 2.Develop and implement security measures … using specialised tools based on Cyber security best practices. 3. Support and build network segmentation capabilities, including deciding on the granularities of segmentation from a threat-led perspective (e.g., application level, environment level, network level, network policies, mapping attack paths, and building mitigations). 4. Hands-on exposure and knowledge of Cyber & network security … and using CI/CD technologies, such as Azure DevOps. 6· Hands-on experience working with cloud networking with a focus on security. For example, working with virtual networks, network security groups, virtual firewalling, Web Application Firewalls, and cloud networking security monitoring. 7· Previous experience working with security best practices – e.g. Zero trust, defence in depth More ❯

Your new role - Permanent - ON SITE 5 Days per week. You will be required to obtain security clearance and undergo vigorous onboarding checks - UK Only. Sponsorship NOT available.The main purpose of this job mainly 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 phrases, terminal security, backup security, third party and supply chain security of IT service provider.Liaison with the Head Office, Security Operation Centre or 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 More ❯

Your new role - Permanent - ON SITE 5 Days per week. You will be required to obtain security clearance and undergo vigorous onboarding checks - UK Only. Sponsorship NOT available. The main purpose of this job mainly 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 phrases, terminal security, backup security, third party and supply chain security of IT service provider. Liaison with the Head Office, Security Operation Centre or 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 More ❯

CI/CD Pipeline Management: Develop, maintain, and optimize end-to-end CI/CD pipelines using GitLab CI/CD, enabling rapid and reliable application and infrastructure delivery. Security and Compliance (DevSecOps): Embed security throughout the development lifecycle, implementing continuous security testing, vulnerability scanning, and compliance checks. Define and manage IAM policies, network security … groups, and access controls within both GCP and GCVE environments. Ensure all infrastructure changes adhere to internal policies and industry regulations. Collaboration and Best Practices: Collaborate closely with development, security, and operations teams to foster a culture of shared responsibility and continuous improvement. Champion IaC, CaC, and DevSecOps best practices, providing mentorship and technical leadership to other engineers. Monitoring … Automation Tools: Expert-level knowledge of Terraform and Ansible. Version Control & CI/CD: Strong proficiency with GitLab and GitLab CI/CD for version control, collaboration, and automation. Security & Compliance: Solid understanding of cloud security principles, network security, IAM, and experience implementing security controls in CI/CD pipelines. Networking: Knowledge of networking fundamentals More ❯

Senior Platform Engineer (Network & Security) Central London, Hybrid (2-3 days) | £70,000-£80,000 + excellent benefits About the company We’re proud to be partnering with a leading international bank, renowned for its commitment to digital transformation, sustainability, and innovation. With operations spanning multiple continents, they’re investing heavily in modernising their technology landscape; driving automation … the heart of this transformation, helping to build secure, scalable platforms that power global banking operations. About the role As the Senior Platform Engineer, you’ll take ownership of network infrastructure design, automation, and security and work with both internal teams and third party partners to drive enterprise-level transformations. You’ll work across cloud and on-prem … environments, utilising a range of cloud, network, and security technologies, developing Infrastructure as Code (IaC), and embedding security controls to deliver seamless, secure platform connectivity. About you An experienced Network & Security Engineer with at least 5+ years of relevant experience in designing, implementing, and securing enterprise-grade network platforms. You’ll bring strong technical More ❯

Senior Network Security Engineer Location: Fully Remote Rate: Up to £450 per day (Inside IR35) Duration: 6 Months About the Role We are seeking an experienced Senior Network Security Engineer to join on a 6-month contract. This is a fully remote role, offering an opportunity to work on high-impact security projects and infrastructure … initiatives. You’ll be responsible for strengthening the security posture, managing critical systems, and mitigating risks across cloud and network environments. Key Responsibilities Manage, configure, and troubleshoot Palo Alto firewalls to ensure optimal security. Implement and maintain Azure security controls , including identity, networking, and monitoring solutions. Configure and manage Web Application Firewalls (WAFs) to protect against application … layer attacks. Conduct security audits , review findings, and produce comprehensive reports. Proactively mitigate vulnerabilities identified in security reports and assessments. Collaborate with cross-functional teams to ensure security best practices are followed. Stay up to date with emerging threats, vulnerabilities, and industry trends. Skills & Experience Required Proven experience as a Network & Security Engineer or similar More ❯

Network & Security Consultant (Contract) Location: Fully Remote (UK-based) Rate: Up to £500 per day (Outside of IR35) Duration: 3 months strong potential for extension Our client, a leading cyber security and managed services provider, is seeking an experienced Network & Security Consultant to support the delivery of high-performance, secure infrastructure across enterprise and service … provider environments. You’ll play a key role in designing, implementing and optimising network and security solutions that enhance reliability, scalability and resilience, helping clients strengthen their security posture and operational efficiency. What you’ll do Design, configure and deliver network and security solutions Configure, maintain and troubleshoot routers, switches, firewalls and load balancers Implement … enterprise networking (LAN/WAN, routing, IP, DNS) Strong background in firewall administration (Check Point, Fortinet, Palo Alto, Cisco ASA/FTD) Hands-on experience troubleshooting complex multi-site network issues Professional certifications such as CCNA/CCNP, CCSA or PCNSA preferred Familiarity with ITIL frameworks and multi-client service environments Excellent communication and problem-solving skills Experience with More ❯

Job Title: Information Security Architect Location: London Hybrid Working: 50% Remote/50% Office Leading Financial Services/FinTech are seeking a highly technical and broad Information Security Architect to join their security architecture team. This is a key position responsible for ensuring that the design, delivery, and operation of systems and services meet the highest security architecture and compliance standards. Information Security Architect will provide architectural leadership across multiple security domains — combining deep hands-on technical security expertise with strategic enterprise security architecture thinking. You will play a critical role in embedding security throughout the technology landscape, from solution-level security reviews to security solutions and enterprise-wide … security architecture standards. This role requires a balance of security solution architecture, technical review and assurance, and enterprise security architecture skills. You will define and validate security controls, assess new technologies, perform security design reviews, and ensure security-by-design principles are consistently applied across hybrid, on-premise, and cloud environments. Key Responsibilities Serve More ❯

Job Title: Information Security Architect Location: London Hybrid Working: 50% Remote/50% Office Leading Financial Services/FinTech are seeking a highly technical and broad Information Security Architect to join their security architecture team. This is a key position responsible for ensuring that the design, delivery, and operation of systems and services meet the highest security architecture and compliance standards. Information Security Architect will provide architectural leadership across multiple security domains — combining deep hands-on technical security expertise with strategic enterprise security architecture thinking. You will play a critical role in embedding security throughout the technology landscape, from solution-level security reviews to security solutions and enterprise-wide … security architecture standards. This role requires a balance of security solution architecture, technical review and assurance, and enterprise security architecture skills. You will define and validate security controls, assess new technologies, perform security design reviews, and ensure security-by-design principles are consistently applied across hybrid, on-premise, and cloud environments. Key Responsibilities Serve More ❯

We are currently seeking a Network Security Operations Engineer , to join our Network Practice ; within one of our Financial Services clients working in an elite Operations Team. This is an initial 6 month contract opportunity Inside IR35 with the prospect of extension. You will be required to be on site 3 days a week, based in Central … London Opticore IT is a rapidly expanding specialist Network Engineer and Project Management consultancy offering a wide variety of opportunities to work within challenging and exciting environments across our client base spanning multiple sectors including Finance, Broadcast Media, Telecommunications and more. This is an exciting opportunity to join an elite Operations team focusing on BAU operational support with a … strong emphasis on network security technologies , particularly firewalls . What you'll be doing: Work as part of the Network Operations Team to deliver BAU support and operational excellence. Manage and resolve tickets from the ITSM system, ensuring timely updates and completion in line with SLAs. Implement and maintain firewall rules across Fortigate, Check Point, and Palo More ❯

We are currently seeking a Network Security Operations Engineer , to join our Network Practice ; within one of our Financial Services clients working in an elite Operations Team. This is an initial 6 month contract opportunity Inside IR35 with the prospect of extension. You will be required to be on site 3 days a week, based in Central … London Opticore IT is a rapidly expanding specialist Network Engineer and Project Management consultancy offering a wide variety of opportunities to work within challenging and exciting environments across our client base spanning multiple sectors including Finance, Broadcast Media, Telecommunications and more. This is an exciting opportunity to join an elite Operations team focusing on BAU operational support with a … strong emphasis on network security technologies , particularly firewalls . What you'll be doing: Work as part of the Network Operations Team to deliver BAU support and operational excellence. Manage and resolve tickets from the ITSM system, ensuring timely updates and completion in line with SLAs. Implement and maintain firewall rules across Fortigate, Check Point, and Palo More ❯

IT Security Engineer Feltham (Hybrid) £50,000 Base + Benefits Overview The IT Security Engineer is responsible for designing, implementing, and maintaining the security controls that protect the organization’s systems, networks, and data. This role works closely with IT, DevOps, and business teams to ensure that security is embedded throughout technology operations and architecture. The … IT Security Engineer is key to detecting, preventing, and responding to cybersecurity threats in a proactive and efficient manner. Key Responsibilities: Security Architecture & Implementation Design, deploy, and manage security solutions including firewalls, intrusion detection/prevention systems, endpoint protection, SIEM, and identity management platforms. Implement secure network architecture and enforce segmentation and least-privilege access controls. … Support secure cloud environments across Azure, AWS, or GCP (e.g., IAM, security groups, encryption, KMS). Threat Detection & Incident Response Monitor and analyze security alerts and network traffic for threats or suspicious activity. Lead or support incident response activities: investigation, containment, eradication, recovery, and reporting. Conduct root cause analysis and implement security hardening improvements. Vulnerability & Risk More ❯

IT Security Engineer Feltham (Hybrid) £50,000 Base + Benefits Overview The IT Security Engineer is responsible for designing, implementing, and maintaining the security controls that protect the organization’s systems, networks, and data. This role works closely with IT, DevOps, and business teams to ensure that security is embedded throughout technology operations and architecture. The … IT Security Engineer is key to detecting, preventing, and responding to cybersecurity threats in a proactive and efficient manner. Key Responsibilities: Security Architecture & Implementation Design, deploy, and manage security solutions including firewalls, intrusion detection/prevention systems, endpoint protection, SIEM, and identity management platforms. Implement secure network architecture and enforce segmentation and least-privilege access controls. … Support secure cloud environments across Azure, AWS, or GCP (e.g., IAM, security groups, encryption, KMS). Threat Detection & Incident Response Monitor and analyze security alerts and network traffic for threats or suspicious activity. Lead or support incident response activities: investigation, containment, eradication, recovery, and reporting. Conduct root cause analysis and implement security hardening improvements. Vulnerability & Risk More ❯

Location: London (Hybrid) Employment Type: Permanent Job Title: Senior Network Engineer This Senior Network Engineer will be responsible for designing, implementing, and managing secure, low-latency, and scalable network infrastructure across both cloud and physical environments and will be a critical hands-on engineering role within a fast-moving digital asset business. The ideal candidate will bring … deep expertise in AWS cloud networking, traditional datacentre networking, and modern network security practices. They will collaborate across infrastructure, security, and DevOps teams to ensure reliability, automation, and performance —spanning trading platforms, asset management systems, and internal services. Role Responsibilities Cloud & On-Prem Network Infrastructure Lead the design, deployment, and operation of complex cloud (AWS & Azure … and on-prem network infrastructure. Architect and optimise connectivity for low-latency systems and ensure secure, scalable networking between platforms, datacentres, and cloud environments. Manage VPNs, segmentation, and hybrid environments. Infrastructure as Code & Automation Develop and maintain an automation framework using Terraform, Ansible, and other IaC tools. Build and manage network provisioning, compliance checks, and configuration drift remediation More ❯

Location: London (Hybrid) Employment Type: Permanent Job Title: Senior Network Engineer This Senior Network Engineer will be responsible for designing, implementing, and managing secure, low-latency, and scalable network infrastructure across both cloud and physical environments and will be a critical hands-on engineering role within a fast-moving digital asset business. The ideal candidate will bring … deep expertise in AWS cloud networking, traditional datacentre networking, and modern network security practices. They will collaborate across infrastructure, security, and DevOps teams to ensure reliability, automation, and performance —spanning trading platforms, asset management systems, and internal services. Role Responsibilities Cloud & On-Prem Network Infrastructure Lead the design, deployment, and operation of complex cloud (AWS & Azure … and on-prem network infrastructure. Architect and optimise connectivity for low-latency systems and ensure secure, scalable networking between platforms, datacentres, and cloud environments. Manage VPNs, segmentation, and hybrid environments. Infrastructure as Code & Automation Develop and maintain an automation framework using Terraform, Ansible, and other IaC tools. Build and manage network provisioning, compliance checks, and configuration drift remediation More ❯

IT Security Engineer Feltham (Hybrid) £45,000 - £55,000 Base + Benefits Overview The IT Security Engineer is responsible for designing, implementing, and maintaining the security controls that protect the organization’s systems, networks, and data. This role works closely with IT, DevOps, and business teams to ensure that security is embedded throughout technology operations and … architecture. The IT Security Engineer is key to detecting, preventing, and responding to cybersecurity threats in a proactive and efficient manner. Key Responsibilities: Security Architecture & Implementation Design, deploy, and manage security solutions including firewalls, intrusion detection/prevention systems, endpoint protection, SIEM, and identity management platforms. Implement secure network architecture and enforce segmentation and least-privilege … access controls. Support secure cloud environments across Azure, AWS, or GCP (e.g., IAM, security groups, encryption, KMS). Threat Detection & Incident Response Monitor and analyze security alerts and network traffic for threats or suspicious activity. Lead or support incident response activities: investigation, containment, eradication, recovery, and reporting. Conduct root cause analysis and implement security hardening improvements. More ❯

Overview Are you an experienced L3 Network Security Engineer looking for your next contract role? Join one of the world's leading IT services, consulting, and business solutions organization. Founded in 1968, the company consistently ranks among the top global IT service providers. With a presence in over 50 countries, the company has built a reputation for delivering … world's largest airline groups with 600+ aircraft carrying more than 122 million customers to 260 destinations across 91 countries each year. They are currently seeking an experienced L3 Network Security Engineer to join the team on a 6-month contract based in West London. Ready to make a move? Get in touch and apply today! Key Responsibilities … networking issues. Configure and manage wireless infrastructure, ensuring optimal performance and security. Assist in the deployment and maintenance of F5 load balancers. Collaborate with cross-functional teams to support network upgrades, migrations, and performance tuning. Required Skills Expert-level experience with Juniper routing and switching platforms (eg, MX, EX, SRX). Strong understanding of wireless networking (802.11 standards, WLAN More ❯

We are seeking a highly skilled and experienced Network Analyst/Architect to join our dynamic IT team. The ideal candidate will play a crucial role in designing, implementing, and optimizing our enterprise network infrastructure, with a strong focus on cloud networking, automation techniques, and traditional network architectures. You will be responsible for ensuring the seamless integration … of cloud-based and on-premise networking technologies, driving performance, scalability, and security across the entire network environment. This position demands a forward-thinking professional who can lead in developing innovative solutions while maintaining and improving our current systems. You will collaborate with IT colleagues, external vendors, and key business stakeholders to ensure that the network infrastructure … aligns with our organization's strategic goals and technology initiatives. Key Responsibilities: Design, Implement, and Manage Network Infrastructure Lead the design and deployment of robust, scalable, and high-performing network architectures, including LAN, WAN, WiFi, and cloud networking solutions. Expertise in routing, switching, and network segmentation to support business operations across multiple sites and cloud environments. Design More ❯