> Markdown version of [/jobs/ext/3024839-network-architect-dv-security-clearance](https://www.wearedevelopers.com/jobs/ext/3024839-network-architect-dv-security-clearance). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Architect (DV Security Clearance) - **Company:** CGI Group Inc. - **Location:** Chippenham, UK (Remote available) - **Contract:** Permanent contract - **Skills:** Border Gateway Protocol, Computer Networks, Software Design Documents, Virtual Private Networks (VPN), Network Security, Network Architecture, Network Diagrams, Network Monitoring, Routing, Network Segmentation, Network Virtualization, Ansible, Zero Trust Network Access, TCP/IP, VCloud, VMware Infrastructure, Virtual Local Area Networks, Wide Area Networks, Load Balancing, System Availability, Firewalls (Computer Science), Kubernetes, SDN Network, Low Latency, Routing & Switching, Terraform, Open Network Automation Platform, Vmware - **Published:** September 22, 2026 - **Apply:** https://find.jobs/jobs-near-me/apply/ats-redirect/?id=2981095329-2 ## About the Role You will have strong network architecture experience within complex infrastructure environments, ideally within Defence or National Security, with particular expertise in VMware NSX-T/NSX and virtual networking. Essential experience: * Strong VMware NSX-T/NSX architecture and design experience. * Strong understanding of software-defined networking and network virtualisation. * Experience with NSX logical switching/routing, Tier-0/Tier-1 gateways and Edge architectures. * Experience with NSX DFW, segmentation and micro-segmentation. * Strong understanding of overlay/underlay networking and physical/virtual network integration. * Strong knowledge of TCP/IP, VLANs, BGP, VPNs and routing technologies. * Network security architecture, including firewalls, zero trust and encrypted connectivity. * Kubernetes networking experience, ideally including VKS. * High availability, resilience, redundancy and failover design. * Ability to produce high-quality HLDs, LLDs and architecture diagrams. * Strong technical leadership and stakeholder communication skills. Desirable * NSX Federation and multi-site architecture. * VMware Cloud Foundation (VCF). * EVPN/VXLAN. * Kubernetes CNI and network policy. * Infrastructure as Code using Terraform or Ansible. * NSX/API-based network automation. * Network monitoring and observability. * SD-WAN and load-balancing technologies. * Relevant VMware, networking or security certifications. Together, as owners, let's turn meaningful insights into action. ## Description As a Network Architect, you will define and assure secure, resilient network architectures across physical, virtual and software-defined infrastructure, with a strong focus on VMware NSX-T/NSX and network virtualisation. You will design NSX networking solutions covering logical switching and routing, overlay/underlay integration, Tier-0/Tier-1 gateways, Edge services, segmentation, micro-segmentation and distributed firewalling. You will ensure effective integration between NSX, physical networks, VMware infrastructure and Kubernetes/VKS platforms. Working across infrastructure, security and engineering teams, you will provide technical leadership throughout design, build and integration, ensuring solutions meet performance, availability, resilience and security requirements. Key responsibilities: * Design end-to-end physical, virtual and software-defined network architectures. * Define VMware NSX-T/NSX architecture, including segments, overlays, Tier-0/Tier-1 gateways and Edge services. * Design routing, switching, firewalling, VPN and secure connectivity solutions. * Define segmentation and micro-segmentation using NSX Distributed Firewall (DFW). * Integrate NSX with physical infrastructure, VMware and Kubernetes/VKS environments. * Define resilient network architectures, redundancy and failover. * Resolve complex routing, traffic-flow, latency, capacity and performance challenges. * Embed security-by-design and zero-trust principles. * Produce HLDs, LLDs, network diagrams and technical design documentation. * Provide technical assurance through architecture and design reviews. ## Related Videos - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Demystifying application networking in the cloud](https://www.wearedevelopers.com/videos/675-demystifying-application-networking-in-the-cloud) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) - [Generating code with Angular schematics](https://www.wearedevelopers.com/videos/129-generating-code-with-angular-schematics) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Events like RSAC Get You CISOs. Developers Decide What Actually Gets Deployed.](https://www.wearedevelopers.com/magazine/693-events-like-rsac-get-you-cisos-developers-decide-what-actually-gets-deployed) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [6 Emerging Technologies We’ll Learn About in 2025](https://www.wearedevelopers.com/magazine/381-6-emerging-technologies-we-ll-learn-about-in-2025)