About this role
Salary: £? - ? per year
Requirements: Proven experience as a network security architect in the financial services industryExperience working on end-to-end projectsStrong ability to define, maintain, and lead network security architecture across data centre, WAN, and cloud environmentsStrong understanding of network security principles, including security boundaries, network segmentation, micro-segmentation, and Zero Trust architecturesExtensive hands-on experience designing, implementing, and managing Palo Alto and FortiGate firewalls, along with F5 BIG-IP load balancing solutionsProven expertise in deploying and maintaining proxy services and secure web gateway technologiesExposure to SASE and Zero-Trust network transformations with identity-driven segmentation modelsPractical experience working with Cisco ACI, including security frameworks, policy enforcement, and network automation modelsStrong track record in vulnerability management, remediation programmes, and coordinating security incidents and risk mitigation efforts across multiple teamsStrong expertise in network routing protocols, secure network architecture, and modern security frameworks, including Zero Trust and network segmentation methodologiesExperience leading a network security engineering functionImmediately availableRelevant certifications such as CCNA, CCSP, or equivalentAutomation experience using Python, Ansible, or infrastructure-as-code approaches for network security tasks Responsibilities: Oversee the design, operation, and ongoing enhancement of enterprise network security capabilities across data centre, campus, WAN, cloud, and hybrid infrastructure environmentsDefine, maintain, and lead the network security architecture across data centre, WAN, and cloudSupport network security engineering activities across security boundaries, segmentation, micro-segmentation, and Zero Trust architecture initiativesDesign, implement, and manage Palo Alto and FortiGate firewalls and F5 BIG-IP load balancing solutionsDeploy and maintain proxy services and secure web gateway technologiesContribute to SASE and Zero-Trust network transformation efforts with identity-driven segmentation modelsWork with Cisco ACI security frameworks, policy enforcement, and network automation modelsCoordinate vulnerability management, remediation programmes, security incidents, and risk mitigation efforts across multiple teams Technologies: AnsibleArchitectCloudCiscoFortiGateSupportLoad BalancingNetworkPythonSecurityWeb More:
We are seeking a Senior Network Security Architect for a London-based hybrid role, with 2-3 days per week in the office. This is an initially 12-month contract offering up to £850 per day Inside IR35 via Umbrella. The role covers enterprise network security across data centre, campus, WAN, cloud, and hybrid environments.
last updated 37 week of 2026