1 to 25 of 65 Permanent Network Security Engineer Jobs in England

We are seeking a highly skilled and experienced Network Security Engineer to join our dynamic Operational Technology (OT) Infrastructure team at Thames Water. As a Network Security Engineer, you will play a critical role in ensuring the reliability, availability, and security of our … network infrastructure across both IT and OT environments. This position requires strong expertise in network security technologies, routing protocols, and firewall administration, along with a deep understanding of service delivery within a complex enterprise setting. You will work closely with key stakeholders, third-party suppliers, and internal … teams to support BAU operations, contribute to the security strategy, and drive continual service improvement. What you'll do as a Network Security Engineer Network Security & System Reliability: Act as SME for Network Security, delivering technical guidance across Digital and Operational teams. More ❯

Security Engineer, Network Security, Basingstoke, COR7186 This is an excellent opportunity for an ambitious and technical Security Engineer, to join a growing, award winning company, at their head offices in Basingstoke. The successful Security Engineer will be required to have a full … UK driving license as this role will involve ad hoc travel to other sites/data centres. The Role The Security Engineer will be joining the internal security team, working alongside an external SOC, in-order to support the business on all internal network security issues that arise. You will be an enthusiastic individual with a passion for all things security, with an eagerness to learn and develop. Outside of this, you will ideally have a broad range of skills with regard to network troubleshooting, firewalls, IDS/IPS, VPNs and more. More ❯

programme offers a hybrid working model, empowering you to find the optimal balance between remote and in-office work. R&D Operational Technology (OT) Network Security Engineer Within R&D Digital & Tech we are looking for an Operational Technology (OT) Network Security Engineer who … will oversee networks used for R&D operations and have the necessary operational knowledge to specify network changes, assuring continued network availability. The OT Network Security Engineer will support Site Focal Point with technical insight necessary for secure file management according to policies and have … a role in new system implementation and incident response. It is key for the OT Network Security Engineer to have in-depth understanding of network architecture to design, implement, and manage secure and efficient networks and proficiency with cybersecurity tools (e.g., firewalls, intrusion detection/prevention 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 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 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 More ❯

Job Overview: As a Network Security Engineering team member, the Senior Network Security Engineer will specialise in firewalls and routing. The ideal candidate is a flexible, self-motivated individual who excels at multitasking and thrives in a fast-paced, challenging environment. This self-starter will … bring ingenuity and expertise to design, implement, and maintain secure, scalable, high-performing network solutions that connect on-premises and public cloud environments. The role emphasizes driving automation through Infrastructure-as-Code (IaC) and GitOps methodologies, ensuring optimal network performance, and integrating robust security measures. Responsibilities: Network Design and Implementation: Design and implement secure, scalable, and high-performing network solutions bridging on-premises and public cloud environments. Leverage routing and switching expertise (e.g., BGP, OSPF, MPLS) to ensure network performance and reliability across diverse environments. Analyze operational needs and proactively develop creative network More ❯

Job Title: Network and Security Engineer Location: London (UK) On site Job Type: Full Time We are seeking a talented and experienced Network and Security Engineer to join our team. The ideal candidate will have a strong background in networking and security, excellent … problem-solving skills, and a passion for learning and developing new skills. You will be responsible for designing, implementing, and managing networks and security measures to safeguard our networks and systems against current and emerging cyber threats, with a particular focus on Datacentre, 3GPP mobile network CORE and … Responsibilities: Networking, Segmentation, Optimization and Maintenance Design, configure and implement highly scalable L2/L3 networks using varieties of protocols and vendor equipment. Monitor network traffic and analyse security incidents to detect and respond to threats within mobile network environments. Diagnose and troubleshoot network related issues More ❯

Network Security Engineer Exeter - Hybrid £40,000 - £45,000 + Holiday + Flexitime + Discounts This is an excellent opportunity for Network Security Engineer to join a market leader within its industry where you will play a key role within wider IT Team. This … supplying high quality products and giving the best service to their customers. In this varied role you will be responsible for reviewing and managing network services by monitoring internal and external communications and ensuring the security of the organisation's IP. The role will also heavily focus on … cyber security through delivering penetration testing and assisting with failover planning to minimise future risks. Lastly, you will collaborate with the Group IT team to support Active Directory, web connectivity, and endpoint security. The ideal candidate will possess expert knowledge of LAN/WAN/VLAN communications, VPN configuration More ❯

Network Security Engineer Exeter - Hybrid £40,000 - £45,000 + Holiday + Flexitime + Discounts This is an excellent opportunity for Network Security Engineer to join a market leader within its industry where you will play a key role within wider IT Team. This … supplying high quality products and giving the best service to their customers. In this varied role you will be responsible for reviewing and managing network services by monitoring internal and external communications and ensuring the security of the organisation's IP. The role will also heavily focus on … cyber security through delivering penetration testing and assisting with failover planning to minimise future risks. Lastly, you will collaborate with the Group IT team to support Active Directory, web connectivity, and endpoint security. The ideal candidate will possess expert knowledge of LAN/WAN/VLAN communications, VPN configuration More ❯

Senior Network Security Engineer Leading global manufacturing company is looking for a Senior Network Security Engineer to join their growing Network Security Engineering team. The successful candidate will design and implement network security solutions connecting on-premises and public cloud … focus on Infrastructure-as-Code (IaC) and GitOps methodologies. This is a very technical role and will play a key part in securing the network infrastructure. London 5 DAYS A WEEK. Responsibilities: Design and deploy network security solutions across cloud and on-premises environments. routing and switching … protocols network performance. Analyze operational needs and develop innovative solutions to strengthen network security. Required: Hands-on experience within enterprise network security solutions. Advanced knowledge of routing and switching protocols. Deep understanding of firewalls. More ❯

Senior Network Security Engineer Leading global manufacturing company is looking for a Senior Network Security Engineer to join their growing Network Security Engineering team. The successful candidate will design and implement network security solutions connecting on-premises and public cloud … focus on Infrastructure-as-Code (IaC) and GitOps methodologies. This is a very technical role and will play a key part in securing the network infrastructure. London 5 DAYS A WEEK. Responsibilities: Design and deploy network security solutions across cloud and on-premises environments. routing and switching … protocols network performance. Analyze operational needs and develop innovative solutions to strengthen network security. Required: Hands-on experience within enterprise network security solutions. Advanced knowledge of routing and switching protocols. Deep understanding of firewalls. More ❯

Meta's Network Security team is seeking an experienced engineer to help secure our global Data Centers, network Backbone, Optical Infrastructure, and Edge PoPs. We do this by working extensively across the Meta family of products, including Instagram, WhatsApp, and AI where we identify and solve … security problems across network infrastructure. You will be responsible for building, implementing, and operationally supporting the organization to develop security controls and services that will protect network infrastructure which helps serve traffic for over 3 billion users worldwide. We are looking for engineers with experience in … managing complex issues that require problem-solving to drive security and innovation, who will research and develop new solutions to help protect our infrastructure and our users through a defense in-depth approach. The team thrives in finding security issues and eradicating them and makes life hard for More ❯

Senior Network Security Engineer Leading global manufacturing company is looking for a Senior Network Security Engineer to join their growing Network Security Engineering team. The successful candidate will design and implement network security solutions connecting on-premises and public cloud … focus on Infrastructure-as-Code (IaC) and GitOps methodologies. This is a very technical role and will play a key part in securing the network infrastructure. London 5 DAYS A WEEK. Responsibilities: Design and deploy network security solutions across cloud and on-premises environments. routing and switching … protocols network performance. Analyze operational needs and develop innovative solutions to strengthen network security. Required: Hands-on experience within enterprise network security solutions. Advanced knowledge of routing and switching protocols. Deep understanding of firewalls. More ❯

Lead Network Security Engineer (Shift) Permanent: Up to £65,000 + 10% Bonus + c. £9.4k shift allowance + more benefits Location: Sheffield City Centre Hybrid - Only day shifts are required in office Your new company I'm on the lookout for a Lead Network Security Engineer to work in a managed service environment in Sheffield to manage a shift pattern in the 24/7 Security Network Operations Centre. This role requires eligibility for SC clearance, a prerequisite of this is to have worked in the UK for at least the … presence. For more information on this pattern, message me for details or search the pattern online. Your new role will involve • Joining the existing Network Security team in tandem with the SOC • Looking for exposure to vulnerabilities • Setting up, maintaining, patching and upgrading customers' firewalls (typical vendors: Cisco More ❯

Lead Network Security Engineer (Shift) Permanent: Up to £65,000 + 10% Bonus + c. £9.4k shift allowance + more benefits Location: Sheffield City Centre Hybrid - Only day shifts are required in office Your new company I'm on the lookout for a Lead Network Security Engineer to work in a managed service environment in Sheffield to manage a shift pattern in the 24/7 Security Network Operations Centre. This role requires eligibility for SC clearance, a prerequisite of this is to have worked in the UK for at least the … presence. For more information on this pattern, message me for details or search the pattern online. Your new role will involve • Joining the existing Network Security team in tandem with the SOC • Looking for exposure to vulnerabilities • Setting up, maintaining, patching and upgrading customers' firewalls (typical vendors: Cisco More ❯

URGENT HIRE: Network Security Engineer – Start 2 June – Hybrid – Surrey We’re seeking a proactive Network Security Engineer to join our team on a hybrid basis (3 days in our Surrey office, 2 days remote) starting Monday, 2 June . If you thrive on … designing and maintaining robust security architectures and want to make a real impact, we’d love to hear from you! Rate: Up to £300 per day Key Responsibilities: Design, implement, and manage network security solutions (firewalls, VPNs, IDS/IPS) Monitor and respond to security incidents … perform root‐cause analysis Conduct vulnerability assessments and penetration tests Develop and maintain security policies, standards, and best practices Collaborate with infrastructure and application teams to integrate security controls What You’ll Bring: Proven experience as a Network Security Engineer or similar role Strong hands More ❯

Network Security Engineer 6-month contract Outside IR35 Remote working Active SC Clearance Essential We are supporting a leading utilities provider searching for a Newtork Security Engineer to join the team. This is an initial 6-month contract with the scope to be extended. Key … responsibilities Proven experience as a Network Security Engineer or similar role within enterprise environments. Deep expertise in Palo Alto Networks firewalls and Fortinet FortiGate solutions. Manage, configure, and troubleshoot next-generation firewalls (NGFW), particularly Palo Alto Networks and Fortinet . Perform firewall rule reviews, audits, and optimisation … to enforce least privilege access. Experience with Prisma Access and secure access service edge (SASE) frameworks. Proven experience as a Network Security Engineer or similar role within enterprise environments. Strong understanding of network architecture principles, including segmentation, zero trust, and high availability designs. Some OOH work More ❯

URGENT HIRE: Network Security Engineer – Start 2 June – Hybrid – Surrey We’re seeking a proactive Network Security Engineer to join our team on a hybrid basis (3 days in our Surrey office, 2 days remote) starting Monday, 2 June . If you thrive on … designing and maintaining robust security architectures and want to make a real impact, we’d love to hear from you! Rate: Up to £300 per day Key Responsibilities: Design, implement, and manage network security solutions (firewalls, VPNs, IDS/IPS) Monitor and respond to security incidents … perform root‐cause analysis Conduct vulnerability assessments and penetration tests Develop and maintain security policies, standards, and best practices Collaborate with infrastructure and application teams to integrate security controls What You’ll Bring: Proven experience as a Network Security Engineer or similar role Strong hands More ❯

Network Security Engineer 6-month contract Outside IR35 Remote working Active SC Clearance Essential We are supporting a leading utilities provider searching for a Newtork Security Engineer to join the team. This is an initial 6-month contract with the scope to be extended. Key … responsibilities Proven experience as a Network Security Engineer or similar role within enterprise environments. Deep expertise in Palo Alto Networks firewalls and Fortinet FortiGate solutions. Manage, configure, and troubleshoot next-generation firewalls (NGFW), particularly Palo Alto Networks and Fortinet . Perform firewall rule reviews, audits, and optimisation … to enforce least privilege access. Experience with Prisma Access and secure access service edge (SASE) frameworks. Proven experience as a Network Security Engineer or similar role within enterprise environments. Strong understanding of network architecture principles, including segmentation, zero trust, and high availability designs. Some OOH work More ❯

Network Security Engineer - Insurance Sector Exp Job Type: Contract/Temporary Location: City of London, London Job Ref: BBBH45 Date Added: May 14th, 2025 Consultant: Hollie Smith Network Security Engineer - Insurance Sector Exp City of London - Onsite 2 days a week 6 month initial … contract Outside of IR35 Market Rate My client, a large Insurance company, is looking for a Network Security Engineer to join their M&A Team. Technical Skills Required: Extensive experience working with the following: Designing and implementing Next Generation Firewall technologies, specifically Palo Alto firewalls, as well … as Cisco, Juniper, and Meraki networking technologies Designing and implementing cloud-based network security technology, specifically in Azure Evidence of engineering technical solutions to business requirements Experience working within project delivery frameworks, with strong time management and labour estimating skills Insurance Sector Experience If you are available and More ❯

depend on us to help secure and connect their digital infrastructures. We are excited to support our continued UK growth by welcoming a talented Network and Security Engineer to our Services Team. This is a fantastic opportunity for an engineer ready to move to the next … tier industry vendors, including Juniper, ADVA, and Fortinet. Join us and be part of delivering service excellence to our customers! Your role as a Network and Security Engineer As a Network and Security Engineer, you will play a pivotal role in our customer support … coverage and support to our diverse customer base, playing a critical role in maintaining service availability, resolving incidents, and driving continuous improvement in network operations. Collaboration and passion are key to success in this role. You should thrive on problem-solving, have a keen eye for detail, and enjoy More ❯

Network and Security Engineer When you join our Engineering Team at Telent, you'll be empowered to innovate and drive common solutions, working closely with technical experts who are proud of the impact their work makes. Come join a high-performing team doing complex and critical work. … Help build and keep the nation's critical infrastructure connected and protected 24/7. As a Network and Security Engineer reporting to the Head of Infrastructure Operations, you'll play a pivotal role in our ongoing digital transformation. You'll help design, implement, and support the … to be in our Warwick HQ 1-2 days per week, as well as ad-hoc travel on occasion. What You'll Do: Lead network design and architecture for Telent's Corporate Enterprise network - producing, reviewing, and maintaining technical documentation and network schematics. Implement and support advanced More ❯

We are searching for an experienced IT Network Engineer to be responsible for ensuring IT networks and communications are well designed, secure, optimal and function consistently across all internal and external operations. The role is offered on a hybrid basis, 3-days in the office and 2-days … application systems to promote the use of technology throughout the business. In this role you will be responsible for the following: Designing and deploying network services in line with design and security policies. Monitoring and administering the installation and integration of corporate network communications, including routers, switches … organisation ensuring VLANs, IP Subnet, DNS, DHCP, VPNs, and VoIP traffic is well designed, secure and optimised. Ensuring best practices are used for protecting network security. Planning lifecycle renewals, 'hotswap' procedures and emergency hardware failure protocols. Providing regular service status updates to line management and agree and monitor service More ❯

IT Network Security Engineer Exeter In office during probation, 3 days per week in office thereafter £40k I am working with a manufacturing and commerce client based in Exeter. They are looking for a network security engineer to join their IT team. Ideally you … be responsible for ensuring that networks and communications are optimised and that they function consistently, both internally and externally. Responsibilities: Design and deploy companies network services securely Monitoring and administration of installations, integration of network communications including routers, switches, firewalls, DMZ, servers, telephony, LAN/WAN. Manage IP … subnet, VLANs, DNS, DHCP, VPN's, VoIP traffic. Protect network security. Ensure failure protocols are in place. Stakeholder communication. Ensure connectivity is balanced and sufficient with failover plan in place. General activities such as administration, asset management, documentation, hardware builds and deployment, technical support of hardware infrastructure. Train end More ❯