Network Engineering Design Lead (Active DV Clearance Required) Location: London (5 days/week on-site) Duration: 6 months The Role: We need a hands-on Network Engineering Design Lead to act as the technical authority for a specialized, mission-focused team. You will drive enterprise-grade network architectures, balancing strict security with operational excellence. Key Responsibilities: Lead the creation, review, and governance of High-Level (HLDs) and Low-Level Designs (LLDs). Define secure, scalable network architectures aligned with enterprise standards. Collaborate with security and solution architects to deliver end-to-end solutions. Drive technology evaluations, PoCs, and automation initiatives.Essential Skills & Requirements: Clearance: Current, active DV (Developed Vetting) clearance is mandatory. Routing & Switching: Deep expertise in Core/Distribution/Access design, L2/L3, OSPF, EIGRP, and redundancy protocols. Data Centre: Spine-and-leaf architectures, VXLAN overlays, VMware NSX. Security: Firewall architecture, micro-segmentation, Palo Alto, Cisco Secure Firewall, NIST/CIS controls. Automation: Practical experience with Ansible, Terraform, or API-driven automation.To Apply: If you hold active DV clearance and have a proven background in senior network design, please apply with your latest CV. Randstad Technologies is acting as an Employment Business in relation to this vacancy