1 to 25 of 39 Network Security Engineer Jobs

N etworking Security Engineer To £70k + Benefits + Training + Supportive Culture Based: Manchester Who's it for We are proud to be partnering with a leading tech employer with headquarters in Manchester. A business driven by both technology and great service, they now require a network security engineer to help support and develop … their internal IT network security capability. Employing over 500 IT staff they offer an amazing career opportunity, coupled with an award winning culture, brilliant training and support across all your certification pathways. The role The network security engineer will be a highly skilled individual aimed at designing, maintaining, and improving the overall network security … primarily). You will implement policies and procedures to aid other engineers to maintain secure delivery of support issues and projects. This is a hands-on role that delivers network security to a level that can deflect most if not all attacks aimed at the network infrastructure. This role reports directly into a Senior Networking Operations Manager 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. The Company The Security Engineer will be joining a well-established Managed Service Provider with ambition and a clear plan for growth. Vendor-neutral, their commitment to quality has 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 solutions to address security challenges. Security and Firewall Management: Manage firewall configurations for the CyberEnergianetwork based on operational requirements. Develop and implement network security tools, produce More ❯

Network Security Engineer Location: Basingstoke (Hybrid - 2-3 days on-site per week) Salary: Up to £60,000 + 10% bonus 83zero are proud to be working with a leading global organisation, headquartered in Basingstoke, who are on the lookout for a Network Security Engineer to join their Central IT division. This business operates … within a secure and highly regulated environment and are looking for a technically skilled professional to help maintain and enhance their critical network infrastructure. As a Network Security Engineer , you'll play a vital role in the build, support, and evolution of complex networking systems, ensuring resilience, security, and performance across their production, pre-production … and development environments. You'll work closely with the Infrastructure and Security teams to both proactively manage the network and support ongoing security initiatives. Key Responsibilities: Provide technical support and network configuration across LAN, WAN, WLAN, VPN, firewalls, and intrusion prevention systems Maintain and support Cisco, HP, and Check Point hardware/software Respond to service More ❯

NETWORK SECURITY ENGINEER: Expert Level Location: Chantilly, VA US Security Clearance Requirement: TS/SCI with Full Scope Polygraph Clearance Status: Must be Current JOB DESCRIPTION: If you are looking for a position that is different from your normal network/cyber security position, please keep reading. We are looking for Network Security Engineers who are familiar with both network defense and offensive techniques to support ongoing operations and secure our customers' networks. You will be assisting Penetration Testers with analysis of edge network devices to include vulnerability analysis and exploitation. We are looking for Network Security Engineers with a blend of network infrastructure management and familiarity … with network penetration testing and offensive security. Candidates should have a minimum of 7+ years of experience as a Network Engineer, System Engineer or in the Cyber Security field as a hands-on penetration tester. Candidates with fewer years of experience will be considered on a case-by-case basis, depending on technical skill level. More ❯

What You'll Be Working On: ️ Designing, implementing, and managing network security architectures to protect against cyber threats ️ Monitoring network traffic, identifying potential vulnerabilities, and mitigating security risks ️ Configuring and maintaining firewalls, VPNs, intrusion detection/prevention systems (IDS/IPS), and other security devices ️ Conducting regular security audits and vulnerability assessments on network infrastructure ️ Collaborating with IT and security teams to develop and enforce security policies and procedures ️ Responding to and investigating network security incidents, including identifying root causes and implementing corrective actions ️ Staying up to date with the latest network security trends, threats, and technologies ️ Providing guidance and training to teams on best practices for … network security ️ Ensuring compliance with industry standards and regulations (e.g., GDPR, ISO 27001, NIST) What We're Looking For: ️ Proven experience as a Network Security Engineer or in a similar role focused on network security ️ Strong knowledge of network security protocols, firewalls, VPNs, IDS/IPS, and encryption technologies ️ Experience with 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 IT workflows. Your responsibilities will also include developing CI/CD pipelines tailored for IT infrastructure, enhancing deployment efficiency, and integrating robust network security measures. You will establish comprehensive observability and proactive issue resolution strategies. We are More ❯

A leading independent logistics provider is seeking a Network Security Engineer with expertise in Cisco DNA and Cisco Firepower to join its team. This role is 80% focused on network security, encompassing both project work and business-as-usual (BAU) operations to maintain a secure and efficient network infrastructure. Hybrid work model - work from … home with 2 days per month in Dartford. Ready to take on a key role in securing a dynamic network environment? Apply now and be part of a team driving innovation in logistics technology! Responsibilities Deploy, maintain, and optimize network and security platforms, including routers, switches, firewalls, IDS/IPS, and cloud technologies. Manage Cisco-based network security, including firewalls, VPNs, and NAC. Monitor network traffic, troubleshoot issues, and improve efficiency. Implement and manage secure remote access and VPN solutions. Oversee PKI management, certificate issuance, and revocation. Recommend and deploy network/security enhancements. Develop technical specifications, rollout plans, and provide BAU support. Collaborate with IT and cybersecurity teams and work with More ❯

Job Title: Network Security Engineer Job Description As a Network Security Engineer, you will leverage Low-Level Design (LLD) and other project materials to prepare, deploy, test, and fix deliverables. These include technologies and services such as firewall devices and configurations, F5 technologies including proxy and load balancer, authentication and encryption mechanisms, access management … to operational processes and controls, including communication and monitoring awareness. Adhere to standards for all build and configuration activities, maintaining appropriate structure, scope, and naming conventions. Support installation of security network devices into racks or cabinets, install the base image, connect to OoBM systems, and liaise with field engineers to ensure compliance with standards. Assist in testing activities … triage, and remediation related to network functionality and performance. Collaborate with the project manager to prioritise, schedule, execute, and report the progress of work. Essential Skills Proficiency in managing firewall devices and configurations, particularly Cisco and Checkpoint. Experience with F5 technologies, including proxy and load balancer. Strong knowledge of network security principles. Ability to manage load balancers More ❯

Network Security Engineer 6 Month Contract Warwick (Hybrid) £380/day (Outside IR35) Network Security Engineer needed with active SC Security Clearance . 6 Month Contract based in Warwick (Hybrid). Start ASAP in July/August. The vast majority of work is expected to be remote. There may be occasional travel to … customer sites to Data Centres in West/South England. Once or twice a month on average. Working with a global IT Consultancy on large-scale network solutions projects for a Telecoms end client. Key skills, experience + tasks will include: Technical Ownership of a Telecoms end client's Network Security Infrastructure estate, processes, documentation + lifecycle … management. Acting as the technical point of contact for all Network Security related projects, changes and modifications, including firewall rules base. Point of escalation and link to vendor support for Network Security infrastructure incidents. Design of customer networks including input into High-Level and Low-Level design (HLD/LLD). Technical support, change management (physical More ❯

Role: Network & Security Engineer Contract: 6 months (initial) Rate: £500/day (Inside IR35) Location: Onsite - PortsmouthClearance: MUST have SC We are seeking a highly skilled Network & Security Engineer to join a leading organisation based in Portsmouth. Key Responsibilities Extension and redesign of wireless networks Security migrations (Juniper to Fortinet firewalls) Network architecture, design, and optimisation Incident investigation and resolution Implementing approved network changes Measuring and improving infrastructure performance Producing technical documentation and customer updates Administration of IT networks, firewalls, users, and site security Essential Skills & Experience 3+ years' experience as a Network/Security Engineer in a service provider environment Strong knowledge of network security principles and networking fundamentals (LAN, WAN, VPNs, WiFi, Telephony, Routing & Switching) Hands-on experience with Palo Alto, Cisco ASA, Juniper, Fortinet, Checkpoint or F5 security platforms Industry certifications such as CCNA, CCNP, PCNSE, CCSA or F5-CTS (LTM/ASM) Ability to work semi-autonomously and manage multiple projects simultaneously SC Clearance Reasonable Adjustments: Respect and More ❯

Firewall/Security Engineer (Palo Alto), Cyber Security, Firewalls, Network Engineer. Location: Surrey (Hybrid - Minimum 2 days on-site) Contract Type: Temporary, Day Rate (Engagement via Umbrella Company Only; all taxes & NI deducted at source). Industry: Global Enterprise Overview: Our client, a prestigious global company based in Surrey, is seeking an experienced Cyber Security and Network Engineer with a strong background in Palo Alto firewalls . This is a key role that involves maintaining the integrity and security of the company's network infrastructure. Key Responsibilities: Network & Security Monitoring: Perform daily monitoring of network infrastructure and cyber security systems to prevent unplanned downtime, security breaches, or vulnerabilities. Network Management: Develop, maintain, and support the organization's network, including managing Layer 2/3 devices, LAN/WAN, B2B connections, remote access, load balancing, Wi-Fi, and network performance tools. IT Security Management: Manage IT security systems, including next-generation firewalls, IPS, SIEM tools, endpoint security, and other More ❯

Network and Security Engineer Job Description 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 systems that power Telent’s ICT estate - working on cutting-edge technologies in a role that blends strategy … working role, with a requirement 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 network and security More ❯

Multiple Opportunities Available Title: Network Security Engineer II Location: On-site at Gunter Annex, Montgomery, AL Clearance Required: Active Secret Clearance Hours: 2 Day Shift (6:30 AM - 2:30 PM) 1 Afternoon Shift (2:30 PM - 10:30 PM) Certifications Required: IAT-II & Infoblox: Core DDI Administration OR Infoblox: Core DDI Troubleshooting. Salary Range … depending on experience DLS Engineering is seeking a Network Security II (Boundary) DNS professional for a full-time position in support of the Air Force Intranet Control (AFINC) support program at Gunter Annex in Montgomery, Alabama. As part of AFINC, the mission of the 26th Network Operations Squadron (26 NOS) is to provide mission assurance to the … warfighter through the operation, management, and defense of the Department of Defense Information Network (DODIN). In the execution of its mission, the 26 NOS maintains network infrastructure, to include routers, switches, proxies, firewalls, servers, workstations, printers, Storage Area Networks (SAN) and test labs, to provide maneuverability and defense of both classified and unclassified networks. A day in More ❯

successes like the Raspberry Pi. Additionally, we host a Sony customer service and solutions centre, a business incubation centre, and more. Role Overview: We are looking to strengthen our network team with a focus on security. The Network Security Engineer will be essential in safeguarding and improving our factory's network infrastructure. Responsibilities include designing … implementing, and maintaining secure, efficient networks to meet operational needs, ensuring system reliability, optimizing performance, and proactively addressing vulnerabilities. The role involves collaboration with internal teams to ensure the network is robust, secure, and compliant with high security standards, implementing best practices and advanced security protocols to protect critical network systems. Key Responsibilities: Network Security: Implement and maintain security policies for our network infrastructure. Network Monitoring and Maintenance: Monitor performance, resolve issues, conduct audits, and update Cisco equipment. Network Optimisation: Plan and deploy capacity upgrades supporting business growth and performance. Research and Development: Recommend and integrate new network technologies to enhance security and efficiency. Collaboration and Communication: Work More ❯

Network Security Operations Senior Engineer - UK page is loaded Network Security Operations Senior Engineer - UK Apply locations GBR - Northumberland - Cramlington GBR - London - London time type Full time posted on Posted 2 Days Ago time left to apply End Date: September 2, 2025 (30+ days left to apply) job requisition id R535396 Job Description The … Position As a member of the team in Business Technology, the successful candidate will be part of the Network Service Delivery and Operations team ensuring the operation of our Company's Global Network. These services allow our Company to communicate globally and collaborate worldwide with partners and customers. This role requires a skilled individual with extensive experience in network security. Responsibilities Work to support the continuity, stability and security of Organon's network. Assist with network security requests coming from other teams. Troubleshoot network security related issues. Cooperate with Network Engineering and Architecture team on solving complex incidents. Required Education, Experience, and Skills Extensive experience in network security. Experience with management More ❯

and throw yourself in the deep end of tech. Within this role, you will report to the Head of security. You will play a senior role within the London network security team responsible for managing the entire infrastructure and networks. You will be able to bring your expertise to the table and work in a shared engineering environment. … This is a fantastic opportunity to join a cutting-edge trading and technology firm that pushes the boundaries of innovation in global markets and offers an environment where a Network Security Engineer can thrive. You'll have the opportunity to work on high-impact projects, protecting the infrastructure that powers industry-leading trading strategies. If you're … passionate about security and want to contribute to a company at the forefront of both finance and technology, this role offers the perfect blend of challenge and opportunity Responsibilities: Play the lead role with the network security team for London Gather requirements, implement solutions and support the global infrastructure Design configure and maintain Cisco ISE Automate security More ❯

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 … 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 ❯

Network Security Engineer Montgomery, AL - 100% ONSITE Maxwell AFB/Gunter Annex Secret clearance is required to start Must be Security+ certified Must get Palo Alto certification within 90 days of hire Different shifts available: 7am - 3pm 3pm - 11pm 11pm - 7am Requirements: • 5+ years' experience with Enterprise DOD boundary protection and CSSP operations. • Install, monitor, configure, troubleshoot … patch, harden, maintain, and operate intrusion detection/prevention systems, firewalls, load balancers, and web proxies to protect AFNet resources from both internal and external threats according to DoD security standards. • Perform complex analytics on boundary protection systems to protect system assets from compromise, data loss, and other requirements. • Perform DCO and DODIN operations. • Must have an active Secret … clearance or higher Certifications Required: • Must be Security+ certified • Must obtain one of the following certifications within 90 days of hire: Palo Alto Network Security Professional or Palo Alto Networks Certified Network Security Administrator (PCNSA) (Certification retired but still valid if not expired More ❯

Data network and security engineer Either location – London, Camberley, Bromley or Chester 12 month contract Inside IR35 As a Data Network and Security Engineer, your role and responsibilities will involve: • Eliciting, analysing and documenting technical application and service requirements • Working with multiple technical teams to identify end to end solutions that balance business, security … mitigation of risks within the operational environment. • Ensuring documentation is updated to reflect new additions to or modifications in the environment and handed into Operations successfully As a Data Network and Security Engineer, your skills and qualifications will include: • Cisco/Arista/Checkpoint/Fortinet certifications • Strong DC architecture and engineering Experience • A very strong understanding … understanding and experience of firewall rule deployments on Fortinet, CheckPoint or Juniper environment would be an advantage • Strong communication and technical analytical skills • A recognition of the requirement for Security within the Network, and • A good strong team player but capable of self-working • Strong client focus If you believe you have the experience required, please apply with More ❯

Data network and security engineer Either location – London, Camberley, Bromley or Chester 12 month contract Inside IR35 As a Data Network and Security Engineer, your role and responsibilities will involve: • Eliciting, analysing and documenting technical application and service requirements • Working with multiple technical teams to identify end to end solutions that balance business, security … mitigation of risks within the operational environment. • Ensuring documentation is updated to reflect new additions to or modifications in the environment and handed into Operations successfully As a Data Network and Security Engineer, your skills and qualifications will include: • Cisco/Arista/Checkpoint/Fortinet certifications • Strong DC architecture and engineering Experience • A very strong understanding … understanding and experience of firewall rule deployments on Fortinet, CheckPoint or Juniper environment would be an advantage • Strong communication and technical analytical skills • A recognition of the requirement for Security within the Network, and • A good strong team player but capable of self-working • Strong client focus If you believe you have the experience required, please apply with More ❯

Role: Network & Security Engineer Rate: Inside IR35 Location: Full time onsite in Harmondsworth, West Drayton Duration: 6-months initially The Role We are looking for Network L2 and L3 admins for one of the major airlines in the UK. This role is customer-facing and requires strong technical hands-on and good communication skills as outlined … OSI layers 1-7, with the ability to apply analytical and troubleshooting skill sets to solve complex problems across all networking disciplines * Monitor the performance and capability of the network using diversified tools. Identify the malfunctioning of hardware, software, and alerts events. * Triage or troubleshoot the issues & incident, within the defined areas. Follow Standard Operating Manuals and coordinate with … resolutions. * Develop strong relationships with the customer and all other support departments. * Experience in supporting the Cisco WLAN Controllers, SSID and Access Points * Experience on Implementing and troubleshooting Firewalls Security, VPN's, NAT policy, Software Patch management * Configuring and troubleshooting routing & switching protocols: Set up and troubleshoot protocols like OSPF, BGP, EIGRP, VLANs, STPs, VRF, MC-LAG, FHRP, DMVPN More ❯

Are you passionate about network & security and ready to take on an exciting role in a global company? Join a prominent logistics and supply chain management company that offers a wide range of services, including road, air, sea, and warehouse logistics. They are currently seeking for a Network & Security engineer who will be responsible for … deploying, administering, and supporting cutting-edge global networks and security systems. If you're looking to make a real impact, work with the latest technology, and grow your career, this is the perfect opportunity for you. Want to learn more about this opportunity? Feel free to reach out and apply today! Responsibilities : Deploy, administer, and maintain network and … security platforms (routers, switches, firewalls, VPNs, and more). Conduct diagnostics to ensure maximum reliability across Cisco-based technologies. Monitor network traffic and optimize performance for enhanced efficiency and security. Implement remote access and VPN solutions, and manage PKI certificates. Collaborate with IT and security teams to integrate security measures into new systems and applications. Provide More ❯

population, they continue to set the standard as the UK's best mobile network. Ready to take the next step in your career? Apply today! Responsibilities: Provide 3rd line network security support, troubleshooting and resolving complex issues Work with Fortinet, Palo Alto, Cisco, or Checkpoint (strong expertise in at least one required) Operate in a highly secure environment … SC Clearable candidates preferred) Follow a DuPont shift pattern, ensuring 24/7 coverage of network security operations Collaborate with cross-functional teams on security implementations, upgrades, and incident response Required Skills/Qualifications: Experience in a 3rd line network security role, handling complex troubleshooting and support Strong skills in at least one of the … office) = 1 Day Off This cycle repeats every 4 weeks. Benefits: Hybrid shift model: Nights worked from home, days onsite in Sheffield, Belfast, or Hatfield Work on cutting-edge network security solutions in a high-security environment A structured shift pattern with regular extended time off Salary: £55,000 - £65,000 base salary + £10,000 shift More ❯

Security Engineer Remote with occasional trave to their London office 10 - 12 month contract - starting in August Inside IR35 £450 - £475pd iO are working with an established and successful Consultancy in their search for an experienced Network Security Engineer They have a global presence providing expertise in Cloud, Security and Networking. They provide services … from Strategy and design through to implementation and support This position is critical for designing, implementing, managing, and optimizing the organization's complex network infrastructure, ensuring its stability, security, and scalability, particularly during critical transition and integration phases To be considered for this role you must have experience in the following: Palo Alto Networks Firewalls/Global Protect …/decryption/DLP Fortinet Juniper Routers/Firewalls Good with knowledge of network automations and infrastructure as code Terraform, Ansible and Git Interested in hearing more? Please get in touch with Rebecca Long on/ More ❯