39 network security engineer jobs found

Network Security Engineer (SC Cleared) UK Remote + Occasional Travel 6 Month Contract £380/day (Outside IR35) Network Security Engineer needed with active SC Security Clearance. Hands-on experience of F5, Zscaler + Palo Alto technologies preferred. 6 Month Contract. Start ASAP in July/August 2026. The vast majority of the work is expected to be remote. However, there may be occasional travel to UK customer sites including - Wokingham, Corsham, Farnborough + Warwick. Working with a global IT Consultancy supporting a leading Telecoms end client: Strong hands-on experience of: F5, Zscaler + Palo Alto IT security technologies, including Firewalls + Network Security. Technical Ownership of Customer Security infrastructure estate, processes, procedures, documentation + life cycle management. Acting as technical point of contact + escalation for Security related changes, modifications + projects for firewall rule bases. Providing technical support, Change management, for hard...

Network Security Engineer (SC Cleared) UK Remote + Occasional Travel 6 Month Contract £380/day (Outside IR35) Network Security Engineer needed with active SC Security Clearance . Hands-on experience of F5, Zscaler + Palo Alto technologies preferred. 6 Month Contract. Start ASAP in July/August 2026. The vast majority of the work is expected to be remote. However, there may be occasional travel to UK customer sites including - Wokingham, Corsham, Farnborough + Warwick. Working with a global IT Consultancy supporting a leading Telecoms end client: Strong hands-on experience of: F5, Zscaler + Palo Alto IT security technologies, including Firewalls + Network Security. Technical Ownership of Customer Security infrastructure estate, processes, procedures, documentation + life cycle management. Acting as technical point of contact + escalation for Security related changes, modifications + projects for firewall rule bases. Providing technical support, Change management, for...

Network Security Engineer (SC Cleared) UK Remote + Occasional Travel 6 Month Contract £380/day (Outside IR35) Network Security Engineer needed with active SC Security Clearance. Hands-on experience of F5, Zscaler + Palo Alto technologies preferred. 6 Month Contract. Start ASAP in July/August 2026. The vast majority of the work is expected to be remote. However, there may be occasional travel to UK customer sites including - Wokingham, Corsham, Farnborough + Warwick. Working with a global IT Consultancy supporting a leading Telecoms end client: Strong hands-on experience of: F5, Zscaler + Palo Alto IT security technologies, including Firewalls + Network Security. Technical Ownership of Customer Security infrastructure estate, processes, procedures, documentation + life cycle management. Acting as technical point of contact + escalation for Security related changes, modifications + projects for Firewall rule bases. Providing technical support, Change management, for...

Network Security Engineer (SC Cleared) Location: Mostly remote (UK) with occasional travel to customer sites (Wokingham, Corsham, Farnborough, Warwick; Reading/Berkshire base) Contract: 6 months (ASAP start - July/August 2026) Rate: £300/day Outside IR35 Clearance: Active SC clearance required Overview We're looking for a hands-on Network Security Engineer with active SC to support a leading telecoms end client via a global IT consultancy. This is a predominantly remote contract, with occasional on-site visits to UK customer locations. Key Responsibilities Provide technical ownership of the customer's security infrastructure estate, including processes, documentation, and life cycle management . Act as the technical point of contact and escalation for security-related changes and project work , particularly around Firewall rulebases . Deliver BAU and project support across both: Physical changes (on-site/hardware) and Remote changes...

Contract: Network Security Engineer - 3 months - Outside of IR35 Role Overview In this role, you will support the design, implementation, and operational management of Fortinet network security solutions across a secure enterprise environment. Working closely with network and security teams, you will help maintain resilient, high-performing infrastructure while supporting project delivery and ongoing operational improvements. Key Responsibilities Configure, support, and optimise Fortinet network security solutions. Implement Firewall policies, VPNs, NAT, routing, and security controls. Troubleshoot complex network and security issues across enterprise environments. Support network upgrades, migrations, and infrastructure changes. Ensure solutions align with security standards and operational best practices. Produce and maintain technical documentation and implementation guides. Work closely with engineering, infrastructure, and security teams...

Job Title: Network Infrastructure Specialist Job Type: Contract, Hybrid (2-3 days onsite) Duration: 6 Months Industry: FMCG/IT Job Location: Southampton (UK travel required) Rate: £550/day to £700/day (Outside IR35) Profile – Network Infrastructure Specialist Our client is a leading figurehead in the UK food sector, with an unparalleled pedigree dating back to the early 18th century. They are currently seeking a Technical Specialist to join their team busy Technical Services Team. Job Role – Network Infrastructure Specialist Reporting to the Technical Support Manager the Network Technical Specialist shall be responsible for leading (hands on) the remediation and standardisation of Operational Technology (OT) firewall environments across all factory sites and establishing the governance and best practices required for their ongoing management. Duties – Network Infrastructure Specialist • Review all factory-based firewall configurations and identify risks and audit gaps •...

Job Title: Network Infrastructure Specialist Job Type: Contract, Hybrid (2-3 days onsite) Duration: 6 Months Industry: FMCG/IT Job Location: Southampton (UK travel required) Rate: £550/day to £700/day (Outside IR35) Profile – Network Infrastructure Specialist Our client is a leading figurehead in the UK food sector, with an unparalleled pedigree dating back to the early 18th century. They are currently seeking a Technical Specialist to join their team busy Technical Services Team. Job Role – Network Infrastructure Specialist Reporting to the Technical Support Manager the Network Technical Specialist shall be responsible for leading (hands on) the remediation and standardisation of Operational Technology (OT) firewall environments across all factory sites and establishing the governance and best practices required for their ongoing management. Duties – Network Infrastructure Specialist • Review all factory-based firewall configurations and identify risks and audit gaps •...

Role - Infrastructure Engineer Location - Hybrid, one day a week onsite in Corsham Contract - Initial 8 month contract Rate - £400 to £435 per day Start - ASAP You must hold Active SC Clearance to be eligible for this role. This role has been deemed Outside IR35. A leading technology consultancy supporting highly secure UK government environments is looking for an SC Cleared Infrastructure Engineer with strong service monitoring and observability experience to join their growing infrastructure team. This role focuses on enhancing monitoring capabilities across complex private cloud, multi-tenant hosting environments, improving operational visibility, service reliability and alerting across infrastructure and applications. This is an excellent opportunity for an engineer with strong VMware, Splunk and infrastructure monitoring experience to work within mission-critical, high-security environments. The Role As an Infrastructure Engineer, you...

London (Hybrid) £400 to £450/day Outside IR35 12-month contract Active SC Clearance required ASAP start iO Associates are looking for an experienced Cloud Network Engineer to support a major secure cloud transformation programme within the UK public sector. You'll play a key role in designing, implementing and managing networking for a Google Distributed Cloud (GDC) environment, helping deliver secure, resilient infrastructure for mission-critical services. Key Responsibilities Design and implement resilient cloud and hybrid network architectures. Configure secure site-to-site connectivity, VPNs and private interconnects. Manage VPCs, routing, peering and IP address management (IPAM). Deploy and maintain load balancing and private DNS solutions. Design and secure Kubernetes (GKE) networking, including network policies, private control planes and Istio Service Mesh. Monitor and troubleshoot network performance using flow logs and observability tooling. Essential...

Our Telecoms client is looking for a Principal Security Engineer. This is a 6 months contract initially and the role is outside IR35. Vast majority of work is expected to be remote - however there may be occasional travel to customer sites: Warwick/Wokingham/Corsham/Farnborough. Please note that due to the nature of the role SC clearance is required. Deliverables: -Technical Ownership of the Customers Security infrastructure estate, processes procedures, documentation and life cycle management. -Senior Technical point of reference for all Security related projects, Changes or modifications to Firewall rule bases - Senior technical point of reference/escalation and interface into vendor support for all Incidence related to the security infrastructure. - Design of customer networks including the support of High Level and Low Level designs. Providing technical support, Change management, for hard (physical) and soft (remote) changes. Customer inventory management, Hardware...

Our Telecoms client is looking for a Principal Security Engineer. This is a 6 months contract initially and the role is outside IR35. Vast majority of work is expected to be remote - however there may be occasional travel to customer sites: Warwick / Wokingham / Corsham / Farnborough. Please note that due to the nature of the role SC clearance is required. Deliverables: -Technical Ownership of the Customers Security infrastructure estate, processes procedures, documentation and life cycle management. -Senior Technical point of reference for all Security related projects, Changes or modifications to firewall rule bases - Senior technical point of reference/escalation and interface into vendor support for all Incidence related to the security infrastructure. - Design of customer networks including the support of High Level and Low Level designs. Providing technical support, Change management, for hard (physical) and soft (remote) changes. Customer inventory management,...

Senior z/Linux Engineer (RHEL/IBM Z) DURATION: Initial 6 months (likely extension) LOCATION: Leeds OR Edinburgh OR Manchester OR Halifax ONSITE REQUIREMENTS: Hybrid - 2 days onsite per week (local office) ENGAGEMENT TYPE: Outside IR35 DAY RATE: Market rates (Competitive) LEGAL RIGHT TO WORK: Candidates must have the legal right to work in the UK. Unfortunately, sponsorship is not available for this role. ATRIUM GLOBAL SUMMARY Atrium Global is supporting a client in the financial services sector in hiring a Senior z/Linux Engineer to join their Core Infrastructure Platform team within Mainframe Services. JOB OVERVIEW This role is focused on the support, stability and continuous improvement of enterprise Linux environments running on IBM Z. You will work across a highly regulated, mission-critical platform, primarily supporting RHEL-based z/Linux systems under z/VM. This is a Linux-first role, requiring strong hands-on system administration experience within enterprise...

Senior data Engineer – Quantexa – 6-months - £500 p/d (Outside IR35) We’re partnering with a leading global professional services organisation to hire a Senior Data Engineer with strong Quantexa experience to lead the delivery of large-scale, data-driven solutions for enterprise clients. What you’ll do Lead development of Quantexa-based data solutions Build and optimise data pipelines using Spark, Scala, Databricks & Python Configure Quantexa components (Entity Resolution, Scoring, Network Generation) Work with Architects and Tech Leads to design scalable, production-ready solutions Support integration into wider enterprise data platforms (cloud, DevOps, security) What you need Quantexa Technical Certification (required) Strong hands-on Quantexa delivery experience Background leading data engineering or integration projects for enterprise clients Strong skills in Scala, Python, Databricks Nice to have Financial Services / AML /...

Our Telecoms client is looking for a Project Network Engineer to join their team in Glasgow. This is a 6 months contract initially and the role is outside IR35. Please note that due to the nature of the role candidates are required 5 days per week onsite at offices just north of Glasgow. Key responsibilities: * Create and maintain technical documentation and ensure customer networks are documented as part of project handovers * Install, configure, fault find, report and maintain Routers, Switches and Firewalls * Completion of site surveys to enable installation * Rack, charger and telecoms equipment installation and commissioning to an excellent standard * Create Health and Safety documentation such as RAMS, POWRA to ensure H&S measures are adhered to. Required experience: * Proven experience in monitoring, maintaining, and troubleshooting network and system environments. * Strong background in IP Networking, including CCNA-level knowledge, WAN, LAN, and MPLS. *...

Our Telecoms client is looking for a Project Network Engineer to join their team in Glasgow. This is a 6 months contract initially and the role is outside IR35. Please note that due to the nature of the role candidates are required 5 days per week onsite at offices just north of Glasgow. Key responsibilities: * Create and maintain technical documentation and ensure customer networks are documented as part of project handovers * Install, configure, fault find, report and maintain routers, switches and firewalls * Completion of site surveys to enable installation * Rack, charger and telecoms equipment installation and commissioning to an excellent standard * Create Health and Safety documentation such as RAMS, POWRA to ensure H&S measures are adhered to. Required experience: * Proven experience in monitoring, maintaining, and troubleshooting network and system environments. * Strong background in IP networking, including CCNA-level knowledge, WAN, LAN, and MPLS. *...

About Us   In 2019, the founders were working as engineers solving complex cross-domain problems within government organisations.   TwinStream was formed to bring together their collective expertise and experience into a single business, focused on delivering technical excellence and high-quality service to clients.   Since then, the company has grown to over 100 team members across the UK, with colleagues working both on-site with clients,  hybrid  and remotely from home.     Day Rate: £500 - £650 Location: Hybrid working in Cheltenham (3-4 days) with possible 24/7 call out when on rota   Security Clearance: Must have live DV Clearance      About the role:   Our cross-domain services are used in high-profile government organisations. The demand for these services continues to grow in both scope and scale. We are seeking an...

AWS Security Architect - Remote/London | 6-Month Contract | £600-£700 per day | Outside IR35 I'm partnered with a leading UK client looking for an experienced AWS Security Platform Engineer to design, build and enhance secure AWS environments within a highly regulated Financial Services setting. This is a hands-on role requiring strong implementation experience across AWS security services, Infrastructure as Code, governance and cloud security best practices. Key Skills & Experience: Hands-on AWS security engineering and implementation Terraform and/or CloudFormation AWS Control Tower, Config, CloudTrail, IAM, KMS and Secrets Manager AWS Landing Zones, guardrails and security governance Threat detection, network security and cloud security controls AWS identity design including least privilege, SCPs, permission boundaries and cross-account access Strong understanding of encryption, data sovereignty and secure data handling Experience delivering security...

Outside IR35 Pay £475 a day 3 month rolling contract ECS Resource Group are currently working in partnership with a global managed service provider, assisting them with the search for a CyberArk Engineer on a contract basis. The successful candidate will be working with a Telecoms end client across various projects. Key Responsibilities Design, implement, and support enterprise CyberArk Privileged Access Management (PAM) solutions, including Vault, CPM, PSM and optional PTA components Onboard and manage privileged accounts across Windows, Linux, Unix, databases, network devices and cloud platforms (Azure, AWS, GCP) Integrate CyberArk with enterprise identity and infrastructure systems including Active Directory, Azure AD / Entra ID, LDAP and ServiceNow Develop automation scripts (PowerShell, Python, Bash) for onboarding, password rotation, health checks, and API-based integrations Provide operational support including troubleshooting PAM issues, managing...

Outside IR35 Role - London, Hybrid Senior Platform Engineer - Agentic AI, Infrastructure as Code building and operating an iternal Agentic AI Platform. Responsible for building new Workflow automation platform capabilities, keeping the platform operationally healthy, and maintaining the infrastructure-as-code and documentation that underpins it.  Build Implement new platform capabilities from architectural designs, translating security, governance, and infrastructure requirements into production-grade infrastructure-as-code Design and build the platform security and secrets management layer, ensuring all workloads operate with least-privilege credentials and certificates issued through a governed PKI hierarchyImplement and enforce security policy across the cluster using admission control, covering workload configuration, image standards, network traffic, and resource constraints Build and establish the platform observability stack, providing consistent log...

Outside IR35 Pay £475 a day 3 month rolling contract ECS Resource Group are currently working in partnership with a global managed service provider, assisting them with the search for a CyberArk Engineer on a contract basis. The successful candidate will be working with a Telecoms end client across various projects. Key Responsibilities Design, implement, and support enterprise CyberArk Privileged Access Management (PAM) solutions, including Vault, CPM, PSM and optional PTA components Onboard and manage privileged accounts across Windows, Linux, Unix, databases, network devices and cloud platforms (Azure, AWS, GCP) Integrate CyberArk with enterprise identity and infrastructure systems including Active Directory, Azure AD / Entra ID, LDAP and ServiceNow Develop automation scripts (PowerShell, Python, Bash) for onboarding, password rotation, health checks, and API-based integrations Provide operational support including troubleshooting PAM issues, managing...