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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # IT Network Operations Support Engineer x2/Cisco ACI/London - **Company:** WNTD Ltd - **Location:** London, UK - **Experience:** Expert - **Salary:** £130,000.0 - £156,000.0 - **Contract:** Temporary contract - **Skills:** Amazon Web Services, Microsoft Azure, Border Gateway Protocol, Cloud Computing, Configuration Management, Data Centers, Enhanced Interior Gateway Routing Protocol, Virtual Private Networks (VPN), Multi-protocol Systems, Python (Programming Language), Log Analysis, Network Diagrams, Network Monitoring, Routing, Network Service, Cisco Nexus Switches, Open Shortest Path First (OSPF), Ansible, Zero Trust Network Access, Wide Area Networks, Computer Network Operations, Firewalls (Computer Science), Information Technology, Fortinet, Api Design - **Published:** September 9, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=6f78cae8759f1f73 ## About the Role * 8-12+ years supporting large-scale enterprise/data centre networks with increasing operational responsibility * Strong L2-L7 troubleshooting, including BGP, OSPF, EIGRP, QoS and WAN routing behaviours * Hands-on Cisco ACI operational experience (tenants, policies, APIC administration, fault analysis) * Hands-on operational experience with Palo Alto Firewalls (security policies, NAT, App-ID, User-ID, Panorama) and Fortinet FortiGate (policy configuration, VPNs, SD-WAN, FortiManager/FortiAnalyzer) * Practical automation experience using Python (log parsing, API-driven configuration validation, health checks, workflow automation) and familiarity with Ansible * Experience with MPLS, SD-WAN, hybrid WAN, ExpressRoute/Direct Connect and Firewall-based connectivity * Familiarity with security practices: segmentation, Zero Trust, access control, encryption and audit compliance * Knowledge of cloud networking constructs in AWS/Azure and hybrid environment support * Experience working in regulated industries (financial services or similar), with strong familiarity with compliance, audit evidence and change governance * Strong communication, documentation and cross-team stakeholder management skills ## Description You'll bring deep L2-L7 troubleshooting skills, hands-on Cisco ACI experience, and strong exposure to Palo Alto and Fortinet Firewall platforms, working closely with engineering, security and business stakeholders to keep critical network services stable, secure and performing., * Provide operational support for enterprise and data centre networks, ensuring high service availability * Troubleshoot and resolve complex L2-L7 issues across routing, switching, Firewalls (Palo Alto, Fortinet) and Cisco ACI environments * Lead incident response, root cause analysis and permanent remediation * Monitor network health, capacity and performance via operational tooling, telemetry and alerting * Identify and resolve performance bottlenecks, routing issues and Firewall policy inconsistencies * Support capacity planning and resilience/optimisation activity across WAN, LAN and data centre fabrics * Implement network and Firewall changes per defined change control, risk assessment and rollback processes * Support deployment, maintenance and policy governance of Palo Alto (Pan-OS) and Fortinet (FortiOS) platforms * Support Cisco ACI fabric deployment, segmentation policies and APIC operations * Maintain network baselines, configuration standards and SOPs * Collaborate with architecture, engineering and cybersecurity teams on new designs, migrations and rollouts * Liaise with telcos, service providers and network vendors on fault resolution, escalations and SLA tracking * Maintain network diagrams, SOPs, incident reports and runbooks, and ensure compliance with regulatory/audit standards ## Related Videos - [WeAreDevelopers LIVE - Back to CODE100](https://www.wearedevelopers.com/videos/1909-wearedevelopers-live-back-to-code100) - [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch) - [Dev & Test in the Cloud? Deploy your cloud environments with Ansible & Terraform](https://www.wearedevelopers.com/videos/1607-dev-test-in-the-cloud-deploy-your-cloud-environments-with-ansible-terraform) - [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) - [Embracing the Hybrid Cloud: Unlocking Success with Ansible](https://www.wearedevelopers.com/videos/932-embracing-the-hybrid-cloud-unlocking-success-with-ansible) - [Demystifying application networking in the cloud](https://www.wearedevelopers.com/videos/675-demystifying-application-networking-in-the-cloud) ## Related Articles - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023) - [Best US AI Conferences for CTOs in 2026: Build vs. Buy, Vendor Evaluation, and Peer Intelligence](https://www.wearedevelopers.com/magazine/736-best-us-ai-conferences-for-ctos-in-2026-build-vs-buy-vendor-evaluation-and-peer-intelligence) - [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) - [IT Salaries in UK](https://www.wearedevelopers.com/magazine/288-it-salaries-in-uk) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)