Permanent Network Security Job Vacancies

151 to 175 of 2,132 Permanent Network Security Jobs

Senior Network Manager

Belfast, Northern Ireland, United Kingdom
VanRath
Our client is seeking a strategic leader to drive the design, evolution, and performance of their global network systems. This leadership role blends hands-on technical vision with team oversight, focusing on building a resilient, high-performing, and future-ready network infrastructure across a complex, fast-paced environment. You'll be instrumental in aligning network capabilities with … business needs, ensuring security, stability, and seamless scalability as the business grows. Key Areas of Impact: Strategic Leadership & Team Oversight Lead and inspire a team of network specialists and engineers responsible for both architecture and day-to-day operations. Provide mentorship and structured growth opportunities, ensuring the team stays technically sharp and aligned with business objectives. Serve as … the final escalation point for advanced technical challenges and operational issues. Network Strategy, Design & Implementation Shape and deliver long-term network strategy across cloud and on-prem environments. Architect resilient, scalable infrastructure for enterprise-wide connectivity-covering data centres, branch offices, and hybrid cloud environments. Build and maintain robust standards around network configuration, access control, and traffic More ❯
Posted:

Network Engineer- Mid

Great Yarmouth, England, United Kingdom
CELESTAR
Social network you want to login/join with: Celestar is currently seeking a Network Engineer in Ft. Meade, MD in support of the INSCOM Army Cryptologic Office. If interested and qualified, we welcome you to post for this challenging opportunity. Security Clearance: TS/SCI; CI Poly About Us : Celestar, a Veteran Owned Company is Very … RESPONSIBILITIES Coordination of system maintenance, monitoring and installation of multiple WAN/LAN environments encompassing multiple specializations, platforms and technologies. Assist with research and implementation of enterprise system-wide network solutions/capabilities/enhancements to support customer- business/mission goals and objectives. Troubleshoot and resolve network media and components. Evaluate and monitor health and performance of … the network including hardware and management software. Develop and maintain a road map for capabilities, operations, and technologies. Assist with development and execution of test plans and supporting documentation of all network configuration upgrades, additions or revisions forcustomer approval before implementation. Support network traffic analysis and bandwidth optimization efforts to ensure attainment of performance and availability objectives. More ❯
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Systems Architect - Senior - CLEARANCE and POLYGRAPH REQUIRED with Security Clearance

Annapolis Junction, Maryland, United States
Constellation Technologies Inc
patching, IAVMs, Docker, MongoDB, Elastic Search, Ansible, GitLab, RedHat Satellite, Prometheus, Grafana, SELinux, LatteArt, Biscotti Due to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polygraph are required for the position. Required: Must be a US Citizen. Must have TS/SCI clearance w/active polygraph (Last polygraph must be within … design/development of computer or information systems and include engineering hardware and/or software over their lifecycle programming, computer systems research, reverse engineering, and/or computer network security.) DoD 8140, formally DoD 8570, IAT Level II Certification: CCNA-Security or CySA+ or CND or Security+. Experience with designing, maintaining, monitoring, and supporting operations and maintenance … O&M) activities of a large enclave comprised of various hardware, software and network components to include server architecture, virtual machines, managed switches, NAS, VLANs, and VPNs. Experience with developing and carrying out strategies to migrate existing customers to new architecture and technology with minimal impact. Able to evaluate new technologies or equipment that can be added to Agency More ❯
Employment Type: Permanent
Salary: USD 235,000 Annual
Posted:

Senior Cyber Security Engineer

City of London, London, United Kingdom
Volant Media UK Ltd
Job Title: Senior Cyber Security Engineer Job Ref: SCSE-443 Closing Date: 25th July 2025 Summary We are seeking a Senior Cyber Security Engineer to join our London-based team. This role is critical in safeguarding our IT infrastructure and ensuring the resilience of our systems. You will be responsible for implementing and maintaining security protocols, managing … threat detection tools, and supporting the broader IT team in delivering secure and reliable services. You will play pivotal role in improving company security posture and internal best practices adoption. This is technical hands-on role. Senior Cyber Security Engineer will report to Director of Technology. Responsibilities Monitor, detect, respond, and manage security incidents across on-prem … cloud environments, and social media services, on multiple platforms and operating systems, Manage relationships and work closely with third-party cyber security service providers. Manage and optimize security tools, including endpoint protection, Microsoft Intune, Entra, Azure, and external detection and response tools. Conduct vulnerability assessments and coordinate patch management cycles. Collaborate with infrastructure and support teams to ensure More ❯
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Senior Cyber Security Engineer

London Area, United Kingdom
Volant Media UK Ltd
Job Title: Senior Cyber Security Engineer Job Ref: SCSE-443 Closing Date: 25th July 2025 Summary We are seeking a Senior Cyber Security Engineer to join our London-based team. This role is critical in safeguarding our IT infrastructure and ensuring the resilience of our systems. You will be responsible for implementing and maintaining security protocols, managing … threat detection tools, and supporting the broader IT team in delivering secure and reliable services. You will play pivotal role in improving company security posture and internal best practices adoption. This is technical hands-on role. Senior Cyber Security Engineer will report to Director of Technology. Responsibilities Monitor, detect, respond, and manage security incidents across on-prem … cloud environments, and social media services, on multiple platforms and operating systems, Manage relationships and work closely with third-party cyber security service providers. Manage and optimize security tools, including endpoint protection, Microsoft Intune, Entra, Azure, and external detection and response tools. Conduct vulnerability assessments and coordinate patch management cycles. Collaborate with infrastructure and support teams to ensure More ❯
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Senior Security Engineer

London, England, United Kingdom
Capco
Senior Security Engineer Joining Capco means joining an organisation that is committed to an inclusive working environment where you're encouraged to #BeYourselfAtWork. We celebrate individuality and recognize that diversity and inclusion, in all forms, is critical to success. It's important to us that we recruit and develop as diverse a range of talent as we can, and … player who prides themselves on delivering modern, first class cloud based platforms through practicing best in class Agile ways of working at all times. Responsibilities Develop and execute advanced security engineering strategies to fortify infrastructure, networks, and cloud environments. Lead security initiatives across the SDLC, integrating Static Application Security Testing (SAST), Dynamic Application Security Testing (DAST … Software Composition Analysis (SCA), and Container scanning using tools such as CheckmarxOne, Prisma Cloud, or equivalents. Collaborate with cross-functional teams to embed security-by-design principles in all engineering efforts. Design and implement robust endpoint protection and cloud security solutions to defend against evolving threats. Implement and monitor cloud configurations to align with compliance standards and best More ❯
Posted:

SCCM Engineer with Security Clearance

Rockville, Maryland, United States
Equiliem
patch testing. • Operating Systems & Infrastructure: • Deep knowledge of Windows, Linux, and MACOS patching. • Experience with Windows Server Update Services (WSUS), SCCM, or Linux patching tools like YUM and APT. • Network & Security Testing: Understanding of vulnerability scanning tools (Nessus, Qualys) and security compliance frameworks (DISA STIGs, NIST, CIS benchmarks). • Database & Log Analysis: Ability to query logs and … managing workforce task assignment. • Strong prioritization, problem-solving, diagnosis, and troubleshooting skills. • Ability to work under pressure with varying levels of leadership and manage competing priorities. • Exposure to other network monitoring systems and IT Service Management (e.g., Splunk, or similar). • Experience using ITIL Ticket Management System - ServiceNow or equivalent. • Proficient in Microsoft Office applications (Word, Excel, PowerPoint). … Windows Server 2016, 2019, or 2022. • Ability to obtain ITILv4 Foundation Certification • Strong analytical and troubleshooting skills to diagnose patch-related issues. • Attention to detail to identify software bugs, security vulnerabilities, and system inconsistencies. • Excellent documentation skills to track test cases, patch deployment results, and remediation steps. • Collaboration & Communication to work with DevOps, security, and IT operations teams More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

SYSTEM ADMINISTRATOR with Security Clearance

Fort Belvoir, Virginia, United States
Toomey Technologies
The Systems Administrator will manage the day-to-day operations by monitoring system performance, configuration, maintenance and repair. You will ensure the stable operation of the FPCS systems and network connections. This includes planning, developing, installing, configuring, maintaining, supporting, and optimizing all software and communication links and/or collaborating with agency stakeholders. Assist in system design, development, and … configure, modify and maintain systems, problems with all FPCS hardware, software, all subcomponents of the system, and as needed operating systems, databases, and networks connectivity. Ensure compliance with IT security policies and industry regulations Stay current with emerging technologies and recommend improvements to enhance efficiency and security Qualifications Active Secret Clearance Requied Bachelor's degree in Computer Science … such as CompTIA A+, Network+, Security+, MCSA, RHCSA, or CCNA Experience with cloud platforms (AWS, Azure, or Google Cloud) Solid understanding of networking protocols and technologies Familiarity with IT security best practices and implementation Strong troubleshooting and problem-solving skills Excellent communication and teamwork abilities Additional Information Be sure to keep an eye on your spam or junk folders More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Security Engineer London

London, United Kingdom
Hybrid / WFH Options
Bondsmith Savings Ltd
where you will be making an impact on the financial lives of thousands of savers. We're regulated by the Financial Conduct Authority in the UK. As a Senior Security Engineer, you will play a key role in protecting our systems, networks, and data while ensuring compliance with industry leading security standards such as ISO 27001. Your contributions … will be essential in maintaining customer trust and safeguarding critical information assets. This role sits within thePlatform Engineering Teamand requires a strong technical background, hands-on experience with security tools, and a collaborative mindset to work effectively across teams. The role will involveplatform engineering activities, contributing to the design, implementation, and optimisation of scalable infrastructure. If you're motivated … by solving complex problems in a dynamic, fast-paced environment, this position is for you. What you will do: Develop and implement proactive security strategies, policies, and procedures to protect our systems, networks, and data assets. Lead regular security assessments, including vulnerability scans and penetration tests, identifying risks and driving remediation efforts. Monitor infrastructure for security incidents More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Security Engineer

London, England, United Kingdom
Hybrid / WFH Options
V7
of experienced engineers, and not short of challenges. About the role At V7, we empower our customers with cutting-edge AI solutions to transform their operations. As a Senior Security Engineer , you will play a pivotal role in safeguarding our systems, networks, and data while ensuring compliance with industry-leading security certifications such as SOC 2, HIPAA, and … maintaining trust with our customers and securing their critical information assets. This role sits within the Platform Engineering Team and requires a strong technical background, hands-on experience with security tools, and a collaborative mindset to work effectively across teams. The role will involve platform engineering activities, contributing to the design, implementation, and optimization of scalable infrastructure. If you … thrive on tackling complex challenges in a fast-paced SaaS environment, this position is for you. What you will do: Design and implement robust, forward-thinking security strategies, policies, and procedures to safeguard our systems, networks, and data. Lead regular security assessments, vulnerability scans, and penetration tests to identify risks and deploy effective remediation measures. Monitor systems, networks More ❯
Posted:

IT Systems Manager

Manchester, England, United Kingdom
Enspec Power Ltd
the IT Manager at Enspec, you will be responsible for planning, coordinating, and directing all IT and systems activities. Your role will involve developing and implementing IT strategies, managing network security, maintaining hardware, and ensuring smooth IT operations. Key Responsibilities: Strategic Planning: Develop and implement the long-term IT infrastructure and systems strategy, ensuring year-on-year progress … teams to identify, recommend, develop, implement, and support cost-effective IT and system solutions, including ongoing development, improvement, and integration of existing systems. Technical Support: Troubleshoot hardware, software, and network issues. Policy Implementation: Define and implement IT policies, procedures, and best practices that conform to industry standards, legal and regulatory requirements, and client requirements. Risk Management: Take a proactive … Service Providers (MSPs) and other IT suppliers, ensuring service level agreements (SLAs) are met and cost-effectiveness is maintained. Drive Innovation: Think strategically about the company’s IT infrastructure. Security Management: Ensure the security of IT and data infrastructure, including compliance with PCI, GDPR, and handling external security risks. Service Oversight: Oversee IT service desk and support More ❯
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Consulting Engineer (CCNP)

Glasgow, United Kingdom
Sword Group
About the role: We are seeking someone with exceptional technical deployment and troubleshooting skills covering a wide range of technologies. The ideal candidate will have a strong understanding of network security and associated technologies and be able to demonstrate a logical and methodical approach to design, implementation and troubleshooting. Here's what the role looks like: Candidates must … consultancy services. Provide expert level support to all clients and act as an internal point of escalation for all support related incidents where required. Troubleshooting and diagnosis of all network and security related incidents Mentoring other members of the team Participating in the on-call rota Here are the key skills and experience relevant to this role: Extensive … experience in a similar role or field based/consulting role CCNP, Routing, Switching & Security with Data Centre experience in Nexus Strong understanding of network security principles and associated technologies Experience of troubleshooting complex enterprise networks and associated technologies Knowledge of Wide Area Networking technologies and associated routing protocols such as EIGRP, OSPF and BGP is essential More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Consulting Engineer (CCNP)

Scotland, United Kingdom
Sword Group
About the role: We are seeking someone with exceptional technical deployment and troubleshooting skills covering a wide range of technologies. The ideal candidate will have a strong understanding of network security and associated technologies and be able to demonstrate a logical and methodical approach to design, implementation and troubleshooting. Here's what the role looks like: Candidates must … consultancy services. Provide expert level support to all clients and act as an internal point of escalation for all support related incidents where required. Troubleshooting and diagnosis of all network and security related incidents Mentoring other members of the team Participating in the on-call rota Here are the key skills and experience relevant to this role: Extensive … experience in a similar role or field based/consulting role CCNP, Routing, Switching & Security with Data Centre experience in Nexus Strong understanding of network security principles and associated technologies Experience of troubleshooting complex enterprise networks and associated technologies Knowledge of Wide Area Networking technologies and associated routing protocols such as EIGRP, OSPF and BGP is essential More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Consulting Engineer (CCNP)

Aberdeen, Scotland, United Kingdom
Sword Group
About the role: We are seeking someone with exceptional technical deployment and troubleshooting skills covering a wide range of technologies. The ideal candidate will have a strong understanding of network security and associated technologies and be able to demonstrate a logical and methodical approach to design, implementation and troubleshooting. Here’s what the role looks like: Candidates must … consultancy services. Provide expert level support to all clients and act as an internal point of escalation for all support related incidents where required. Troubleshooting and diagnosis of all network and security related incidents Mentoring other members of the team Participating in the on-call rota Here are the key skills and experience relevant to this role: Extensive … experience in a similar role or field based/consulting role CCNP, Routing, Switching & Security with Data Centre experience in Nexus Strong understanding of network security principles and associated technologies Experience of troubleshooting complex enterprise networks and associated technologies Knowledge of Wide Area Networking technologies and associated routing protocols such as EIGRP, OSPF and BGP is essential More ❯
Posted:

Senior Consultant - Biostatistics & Health Economics

London, England, United Kingdom
Panmure Gordon & Company
inclusive jobs board. The Role This role is responsible for designing, implementing, managing, and optimising our IT infrastructure. This role requires a deep understanding of enterprise IT systems, networking, security, and cloud technologies. It will play a crucial part in ensuring the resilience, security, and scalability of our infrastructure, supporting critical banking operations. There will be a mixture … and ensure alignment with the bank's technology and business strategies. Manage Windows and Linux-based systems, virtualization platforms (VMware, Hyper-V) and cloud services (365 & Azure). Oversee network security, firewalls, VPNs, and cybersecurity measures to ensure compliance with banking regulations. Implement automation and scripting solutions to improve operational efficiency (PowerShell etc). Conduct performance tuning, capacity … SCCM. PowerShell scripting. Microsoft Intune Endpoint Management. Exchange Online and Exchange Server 2019/Hybrid environments. Office365 administration. Microsoft SCOM/SCCM. Veeam backup solutions. Storage - NetApp or similar. Network fundamentals, preferably Cisco. Fortinet firewalls, or similar. Experience with Office Add-ins troubleshooting and problem-solving. Telephone Systems, preferably Mitel. Citrix Virtual Apps & Desktops, NetScaler experience. Bloomberg, Refinitiv, FactSet More ❯
Posted:

Senior Solutions Architect

London, England, United Kingdom
Infoblox
at Infoblox Get AI-powered advice on this job and more exclusive features. Job Description It’s an exciting time to be at Infoblox. Named a Top 25 Cyber Security Company by The Software Report and one of Job Description It’s an exciting time to be at Infoblox. Named a Top 25 Cyber Security Company by The … Software Report and one of Inc . magazine’s Best Workplaces for 2020, Infoblox is the leader in cloud-first networking and security services. Our solutions empower organizations to take full advantage of the cloud to deliver network experiences that are inherently simple, scalable, and reliable for everyone. Infoblox customers are among the largest enterprises in the world … new business by working directly with customers and partners, effectively positioning Infoblox solutions. You’re the ideal candidate if you are a strategic thinker with a strong networking and security background, understand complex SaaS selling, work well independently, and are results-driven. What you’ll do: Build business cases and technical differentiation in sales opportunities by educating customers and More ❯
Posted:

Cloud Engineer - Azure

England, United Kingdom
Falconwood, Inc
engineering. We have an immediate opening for an Senior Azure Cloud Engineer to provide operations support for Azure-based cloud environments. This role focuses on ensuring the operational stability, security, and performance of cloud infrastructure and DevSecOps pipelines while supporting ongoing deployments, system enhancements, solution security, and helpdesk operations. Responsibilities The Senior Azure Cloud Engineer will: Monitor, maintain … including virtual machines, storage accounts, networking components, Azure Container Registries, and Key Vault integration for secure resource management. Support the deployment and operation of DevSecOps tools, including GitHub Advanced Security (CodeQL, Dependabot, SBOM), GitHub Workflows, and Visual Studio Code/Enterprise for development and pipeline automation. Implement and maintain security tools such as Trellix, Invicti, and Anchore to … alerting systems using Azure Monitor, Log Analytics, and Application Insights. Collaborate with development and engineering teams to ensure seamless integration of applications, including SQL integration, into Azure environments. Apply security best practices, including configuring Azure Security Center policies, managing role-based access control (RBAC), and ensuring compliance with DoD standards. Assist in the automation of operational tasks using More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Risk, Operational Risk, Technology, Vice President, London

London, England, United Kingdom
Goldman Sachs Group, Inc
applications and control requirements are required together with strong interpersonal and analytical skills for this role. EXPERIENCE & SKILLS REQUIRED 10+ years of experience in Technology Risk, Technology Audit, Application Security, Software/Infrastructure Engineering, or related fields. Experienced in regulatory technology related examinations. Proven ability to perform test of controls (design and operating effectiveness) e.g. Cloud, SDLC, AI/… ML, Change Management, Identity and Access Management, Third Party, Encryption, Configuration Management, Patching, Network Security, Incident Response, Capacity and Resiliency. Knowledge with technology application and infrastructure components such as Servers, Storage, Networking, Application Development, SDLC, End User Platforms, Digital Workflow, Artificial Intelligence & Machine Learning, Cloud technologies, Data Engineering, Mobile/Web, and Database Management systems. Ability to review … code (Java, C#, C++, Python, VBA macros etc.) Systems development/SDLC tools and processes (SVN/CVS, build, software testing, configuration, and deployment) Linux and Windows operating systems: security, configuration, and management Database design, setup, and administration (DBA) experience with Sybase, Oracle, or UDB Big data systems: Hadoop, Snowflake, NoSQL, HBase, HDFS, MapReduce Web and Mobile technologies, digital More ❯
Posted:

Network Security Engineer

Greater London, England, United Kingdom
Hybrid / WFH Options
Gazelle Global
Network Security Engineer Location: Middlesex, Greater London - Hybrid We're hiring a Network Security Engineer to help secure hybrid environments across on-prem, cloud, and SD-WAN. This role requires hands-on experience with vulnerability remediation, network hardening, and secure architecture design. Key Responsibilities: Analyze and remediate network vulnerabilities (e.g., IP spoofing, open ports … legacy protocols). Work with tools like Tenable, Qualys, and AWS Inspector to prioritize and resolve issues. Enforce secure configurations using CIS Benchmarks, NIST guidelines, and best practices. Secure network infrastructure including VLANs, ACLs, DMZs, and segmentation policies. Implement strong encryption and access controls on network device interfaces. Design secure networking in cloud platforms (AWS, Azure, GCP). … Support incident response teams in investigating network-related threats. Collaborate with compliance and penetration testing teams to ensure end-to-end remediation. Requirements: Proven experience in network security across hybrid environments. Deep understanding of protocols, firewalls, routing, and switching. Familiar with PCI-DSS, ISO 27001, and other compliance standards. Preferred certifications: CCNP Security, CISSP, AWS Security More ❯
Posted:

Network Security Engineer

Brussel (Stad), Brussel, Belgium
Koda Staff
Freelance - Network Security Engineer - Brussels A client of Koda Staff's is actively looking for a Network Security Engineer to join a long term freelance project. The client would require you on site 2/3 days per week and 2/3 days remote. The key responsibilities of this project will be focused around developing … and maintaining secure network architectures (firewalls, VPNs, IDS/IPS, etc.) and also identifying and mitigating vulnerabilities through regular assessments and testing. Skills & Experience: 5+ years of experience in network or cybersecurity roles Strong expertise in network protocols, security controls, and firewall technologies (e.g., Palo Alto, Cisco ASA, Fortinet, Check Point) Familiar with SIEM tools (e.g. … Splunk, QRadar) and endpoint protection systems Understanding of secure architecture in cloud environments (AWS, Azure or GCP) Relevant certifications (e.g., CISSP, CISM, CEH, CCNP Security) are a strong asset Independent, analytical mindset with solid communication skills Languages : English & French or Dutch is an advantage If you are interested to know more, please apply or alternatively reach out directly on More ❯
Employment Type: Permanent
Salary: EUR Annual
Posted:

Network Security Engineer

Pencoed, Mid Glamorgan, United Kingdom
Sony UK Technology Centre
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 ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Network Security Engineer

Greater London, England, United Kingdom
Coforge
Network Security Engineer Middlesex, UK (4 days from office weekly) "Seeking a Network Security Engineer with expertise in identifying, prioritizing, and remediating network vulnerabilities, including zero-day threats. Role requires a strong security mindset and hands-on experience in securing hybrid infrastructure, including on-premises, cloud, and SD-WAN environments. Candidate must analyze vulnerability … reports from tools such as Tenable, Qualys, AWS Inspector, and implement corrective actions. Expected to remediate common network issues such as IP spoofing, default credentials, open ports, unencrypted protocols, and missing firmware patches. Must be familiar with insecure legacy protocols like Telnet and SNMPv1 and enforce secure alternatives like SSH and SNMPv3. Will apply hardening techniques using CIS Benchmarks … NIST standards, and industry best practices across firewalls, routers, and switches. Responsible for configuring and maintaining network security controls including ACLs, VLANs, DMZs, and micro-segmentation. Ensures management interfaces for network equipment follow least-privilege principles and are protected using strong encryption like TLS 1.2 or 1.3. Requires deep understanding of cloud networking components including AWS VPCs More ❯
Posted:

Network Security Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
Insight International (UK) Ltd
Role- Network Security Engineer Location- Middlesex, UK (Hybrid- 4 days/Week) Employment type- Contract "Seeking a Network Security Engineer with expertise in identifying, prioritizing, and remediating network vulnerabilities, including zero-day threats. Role requires a strong security mindset and hands-on experience in securing hybrid infrastructure, including on-premises, cloud, and SD-WAN … environments. Candidate must analyze vulnerability reports from tools such as Tenable, Qualys, AWS Inspector, and implement corrective actions. Expected to remediate common network issues such as IP spoofing, default credentials, open ports, unencrypted protocols, and missing firmware patches. Must be familiar with insecure legacy protocols like Telnet and SNMPv1 and enforce secure alternatives like SSH and SNMPv3. Will apply … hardening techniques using CIS Benchmarks, NIST standards, and industry best practices across firewalls, routers, and switches. Responsible for configuring and maintaining network security controls including ACLs, VLANs, DMZs, and micro-segmentation. Ensures management interfaces for network equipment follow least-privilege principles and are protected using strong encryption like TLS 1.2 or 1.3. Requires deep understanding of cloud More ❯
Posted:

Network Security Engineer

London Area, United Kingdom
Hybrid / WFH Options
Insight International (UK) Ltd
Role- Network Security Engineer Location- Middlesex, UK (Hybrid- 4 days/Week) Employment type- Contract "Seeking a Network Security Engineer with expertise in identifying, prioritizing, and remediating network vulnerabilities, including zero-day threats. Role requires a strong security mindset and hands-on experience in securing hybrid infrastructure, including on-premises, cloud, and SD-WAN … environments. Candidate must analyze vulnerability reports from tools such as Tenable, Qualys, AWS Inspector, and implement corrective actions. Expected to remediate common network issues such as IP spoofing, default credentials, open ports, unencrypted protocols, and missing firmware patches. Must be familiar with insecure legacy protocols like Telnet and SNMPv1 and enforce secure alternatives like SSH and SNMPv3. Will apply … hardening techniques using CIS Benchmarks, NIST standards, and industry best practices across firewalls, routers, and switches. Responsible for configuring and maintaining network security controls including ACLs, VLANs, DMZs, and micro-segmentation. Ensures management interfaces for network equipment follow least-privilege principles and are protected using strong encryption like TLS 1.2 or 1.3. Requires deep understanding of cloud More ❯
Posted:

Network Security Engineer

Greater London, England, United Kingdom
Gazelle Global
About the Role: We are seeking a skilled Network Security Engineer to join our team in Middlesex. You will play a critical role in identifying, prioritizing, and remediating vulnerabilities across hybrid network environments—spanning on-premises, cloud, and SD-WAN infrastructures. This role demands a proactive, hands-on professional with a strong security mindset and deep … technical expertise in securing enterprise network architectures. Key Responsibilities: Analyze and respond to network vulnerability reports from tools such as Tenable , Qualys , AWS Inspector , etc. Remediate network vulnerabilities including IP spoofing, open ports, unencrypted protocols, default credentials, and outdated firmware. Enforce secure alternatives to legacy protocols (e.g., replacing Telnet/SNMPv1 with SSH/SNMPv3). Apply … hardening standards using CIS Benchmarks , NIST guidelines , and industry best practices to secure routers, switches, and firewalls. Configure and maintain key network security controls such as ACLs , VLANs , DMZs , and micro-segmentation strategies. Secure network equipment management interfaces through least-privilege access and strong encryption (e.g., TLS 1.2/1.3 ). Design secure cloud networking using AWS More ❯
Posted:
Network Security
10th Percentile
£32,500
25th Percentile
£47,500
Median
£62,000
75th Percentile
£80,313
90th Percentile
£95,000