Contract: ACI Engineer Start Date: ASAP Location: UK remote Duration: 6 months Day Rate: £500 a day inside of IR35 Reference: 20498 We are seeking an experienced ACI Engineer to design, implement, and manage Cisco Application Centric Infrastructure (ACI) solutions. The successful candidate will work with cross-functional teams to build and optimize enterprise-grade data center networking environments. This role requires deep technical expertise in ACI architecture, policy management, and network automation. Key Responsibilities Design and deploy ACI fabric architectures aligned with business and technical requirements Configure and manage ACI constructs including tenants, application profiles, EPGs, contracts, and policies Implement network segmentation and security policies using ACI microsegmentation capabilities Develop and maintain documentation for ACI topologies, policies, and configurations Perform troubleshooting and health checks on ACI fabrics using diagnostic tools and CLI commands Monitor ACI fabric performance and optimize configurations for availability and efficiency Collaborate with storage, compute, and application teams to integrate ACI with broader infrastructure Required Qualifications 5 years of experience in network engineering or data center infrastructure 3 years of hands-on experience with Cisco ACI design, deployment, and operations Strong understanding of network protocols (TCP/IP, VLAN, VXLAN, BGP) and data center networking Proficiency with Cisco ACI Management Information Tree (MIT) and policy model concepts Experience with ACI configuration and monitoring tools (APIC, Cisco ACI simulator) Familiarity with network automation and scripting (Python, REST APIs preferred) Knowledge of virtualization platforms (VMware, Hyper-V, OpenStack) and container technologies Excellent troubleshooting skills and ability to work independently on complex problems Preferred Qualifications Cisco Certified Network Associate (CCNA) or higher certification Cisco ACI Specialist certification Experience with SD-WAN solutions and cloud networking integration Hands-on experience with Kubernetes and container orchestration platforms Knowledge of security frameworks and compliance requirements (NIST, PCI-DSS) Experience with IT service management tools and change management processes Technical Skills Cisco ACI (APIC, fabric, leaf/spine architecture) Network switches and routing platforms Python, Bash, or other scripting languages Monitoring and analytics platforms (Tetration, Nexus Insights) Network troubleshooting tools (Wireshark, traceroute, packet analysis) Networking People (UK) is acting as an Employment Business in relation to this vacancy.