Senior Infrastructure Engineer - SC Cleared - 12 month contract - Hybrid Contract Length: 12 months Location: Newcastle (Preferred), Manchester, Leeds, Birmingham, or Blackpool (Peel Park) Hybrid Working: Around 3 days on-site, 2 days remote. Pay Rate: Max £650 per day (Umbrella) (Inside IR35) Security Clearance: Mandatory Active SC Clearance is required for this role. ?? Role Overview We are looking for a Senior Infrastructure Engineer (NetDevOps) to design, build, and evolve large-scale enterprise network platforms. This isn't an operations or 'maintenance' role. We need a builder-someone who can jump straight into design and delivery, applying NetDevOps principles to support critical, high-availability services. You'll be bridging the gap between traditional networking and modern cloud-integrated infrastructure. ??? Key Responsibilities Design & Implementation: Build and enhance enterprise network infrastructure across data centers, hybrid, and multi-cloud environments (Azure, AWS, OCI) ??. Security First: Implement Palo Alto firewall policies aligned with Zero Trust principles ???. Traffic Engineering: Optimize complex OSPF and BGP environments for maximum resilience. Automation: Replace manual tasks with Python, Ansible, and Terraform to drive speed and consistency ??. Collaboration: Work alongside Architecture and Cloud teams to ensure solutions are scalable and secure. Modernization: Drive the transition from legacy systems to VXLAN/EVPN fabrics and SD-WAN technologies. ? Essential Technical Skills (The 'Must-Haves') To be successful, you need deep, hands-on expertise in: Enterprise Network Engineering ?? Complex OSPF & BGP routing. Design of resilient, high-availability traffic flows. Firewall & Security ?? Extensive experience with Palo Alto firewalls. Network segmentation and Zero Trust architecture. Data Center Architecture ?? VXLAN / EVPN, VRF segmentation, and multi-site fabrics. Experience with Arista (or equivalent) and F5 BIG-IP (LTM, APM, ASM). Automation & NetDevOps ?? Scripting with Python and Ansible. CI/CD pipelines (GitLab) and Infrastructure as Code (Terraform). ? Desirable Skills (The 'Nice-to-Haves') Aruba Central / ClearPass ?? SD-WAN technologies SaaS and cloud-delivered WLAN/WiFi solutions Prior experience modernizing large-scale legacy public sector networks ?? What This Role Is Not Not an Operations-only or monitoring role. Not a pure SRE role without deep networking roots. Not an Incident Management role without design/build responsibilities. If you are interested, please apply directly. Randstad Technologies is acting as an Employment Business in relation to this vacancy.