> Markdown version of [/jobs/ext/3693530-senior-network-engineer-aci-specialist](https://www.wearedevelopers.com/jobs/ext/3693530-senior-network-engineer-aci-specialist). 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 Network Engineer/ACI Specialist - **Company:** Access Computer Consulting plc - **Location:** UK (Remote available) - **Experience:** Expert - **Contract:** Temporary contract - **Skills:** Border Gateway Protocol, Network Architecture, Network Planning and Design, Routing, Cisco Nexus Switches, Open Shortest Path First (OSPF), Systems Integration, Virtual Local Area Networks, Firewalls (Computer Science), Fortinet - **Published:** October 12, 2026 - **Apply:** https://www.careerboard.com/gb/en/find-jobs-in-United-Kingdom/-430A88EFA7487A27B6/ ## About the Role * Strong enterprise networking background * In-depth routing and switching knowledge (BGP, OSPF, VLANs, VRFs, L2/L3) * Proven Cisco ACI design, implementation, and troubleshooting experience * Strong understanding of high-availability and resilient network architectures Desirable Skills * Fortinet Firewall implementation and troubleshooting experience * Experience integrating Firewall platforms with Cisco ACI ## Description * Design, implement, and support Cisco ACI fabrics in a large enterprise environment * Configure and manage ACI tenants, VRFs, bridge domains, EPGs, contracts, and L3Outs * Troubleshoot ACI policy, forwarding, and external connectivity issues * Support integration with external network domains and security platforms * Produce and review high-level and low-level network design documentation * Engage with business, design and operational stakeholders, vendors, and internal delivery teams