> Markdown version of [/jobs/ext/2264198-senior-cloud-network-engineer-active-uk-government-security-clearance-required](https://www.wearedevelopers.com/jobs/ext/2264198-senior-cloud-network-engineer-active-uk-government-security-clearance-required). 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). --- # Senior Cloud Network Engineer - Active UK Government Security Clearance Required - **Company:** Appvia - **Location:** London, UK - **Experience:** Expert - **Salary:** £75,000.0 - £85,000.0 - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Microsoft Azure, Border Gateway Protocol, Cloud Computing, Complex Networks, Computer Networks, Data Centers, Internet Protocol Security (IP SEC), Virtual Private Networks (VPN), Multi-protocol Systems, Python (Programming Language), Network Security, Network Troubleshooting, Network Architecture, Network Control, Network Planning and Design, Routing, Cisco Nexus Switches, Open Shortest Path First (OSPF), Ansible, Virtual Local Area Networks, Wide Area Networks, Cloud-native Network Functions (CNF), Computer Networking Systems, Load Balancing, HybridCloud, Firewalls (Computer Science), Amazon Virtual Private Cloud (VPC), SC Clearance, Route53, Terraform, Open Network Automation Platform, Cisco, Citrix Netscaler, Vmware - **Published:** August 27, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5856751957 ## About the Role You are an experienced Network Engineer with strong cloud networking knowledge, comfortable working across complex, highly available environments from design through to live operation. You will bring: * Strong experience designing, implementing, and supporting enterprise network environments * Deep understanding of routing and switching, including BGP, OSPF, MPLS, VLANs, and VRFs * Strong Cisco networking experience, ideally including ACI / Nexus * Experience designing and operating cloud networking environments * Strong understanding of network security, firewalls, VPNs, and secure connectivity * Experience troubleshooting complex production networking issues and leading root-cause analysis * Infrastructure-as-code and network automation experience * Experience working in live service, operational, or managed-service environments * Confidence producing and reviewing network designs and technical documentation * Strong stakeholder communication and consulting skills * Active UK SC clearance ## Description We're hiring a Senior Cloud Network Engineer to join Appvia on a new secure public sector engagement, supporting and evolving critical network infrastructure across cloud and on-premises environments. This is a senior, hands-on role combining live service and operational support with network design, technical change, automation, and continuous improvement. You'll take ownership of more complex networking challenges, helping shape solutions from requirements and design through to implementation and ongoing operation. We're particularly interested in engineers who have developed strong AWS networking expertise alongside traditional enterprise networking skills. Longer term, Appvia will support you in continuing to develop across cloud and platform engineering as part of your progression within the business. Interview Process - 3 Stage 1. Discovery conversation with Talent Acquisition 2. Technical Interview with Engineering Team 3. Final Interview with Leadership Important You must hold active UK Security Clearance (SC). NPPV3 clearance is highly desirable., * Design, implement, support, and improve secure network infrastructure across cloud and on-premises environments * Own complex network incidents, troubleshooting, and root-cause analysis * Lead planned network changes, upgrades, migrations, and optimisation activities * Design and support routing, switching, firewalling, VPN, and load-balancing solutions * Support resilient connectivity across hybrid cloud and data-centre environments * Use automation and infrastructure-as-code to improve repeatability and operational efficiency * Contribute to high-level and low-level network designs and technical documentation * Monitor and improve network availability, performance, resilience, and security * Identify opportunities to simplify legacy network solutions and reduce operational risk * Work closely with engineering, service management, architecture, and customer teams * Provide technical guidance and support to other engineers Technical Skills Core technologies / experience: * AWS networking * Cisco networking * BGP / OSPF * MPLS * Cisco ACI / Nexus * Firewalls and network security * VPN / IPSec * Hybrid cloud networking * Load balancing * Infrastructure-as-code and automation * Enterprise networking in high-availability production environments AWS networking experience could include: * VPC architecture and routing * Transit Gateway * Direct Connect * Route 53 * Multi-account network architectures * Hybrid connectivity * Network security and segmentation * Load balancing * Cloud network monitoring and troubleshooting Nice to have: * AWS Certified Advanced Networking - Specialty * AWS Solutions Architect certifications * Azure networking - VNets, ExpressRoute, Azure Firewall * Terraform * Ansible * Python * Cisco SD-WAN / SDA * Netscaler / F5 * VMware NSX * Check Point / Palo Alto * CCNP / CCIE or equivalent * NPPV3 clearance ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Demystifying application networking in the cloud](https://www.wearedevelopers.com/videos/675-demystifying-application-networking-in-the-cloud) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Dev & Test in the Cloud? 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