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# Unified Collaboration Infrastructure Engineer

- **Company:** CACI
- **Location:** Cheltenham, UK
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Application Firewall, Backup Devices, Cisco Unified Communications Manager, Cisco PIX, Cloud Computing, IP Addressing, Interoperability, Jabber, Linux Distribution, Windows Servers, NetApp Applications, Network Architecture, Ansible, Server Virtualization, Virtual Local Area Networks, VMware VSphere, Wide Area Networks, Cisco WebEx, SSL Certificate Management, Grafana, HybridCloud, Infrastructure as Code (IaC), FlexPod, Infrastructure Automation Frameworks, Palo Alto Networks, Fortinet, Firepower, Terraform, Splunk, Network Server, Cisco
- **Published:** July 23, 2026
- **Apply:** https://www.totaljobs.com/job/infrastructure-engineer/caci-limited-job107734429

## About the Role

Network Infrastructure

 * LAN/WAN fundamentals, QoS for video and voice traffic.
 * VLAN design, IP addressing
 * Secure device onboarding and certificate management.
 * Firewall administration (Cisco ASA/Firepower, Palo Alto, Fortinet)

Unified Communications Platforms

 * Cisco UC products
 * Cisco Unified Communications Manager (CUCM), Cisco Jabber, Cisco Unity Connection, Cisco Expressway, Cisco Meeting Server
 * Webex Control Hub administration.
 * SIP protocol understanding.
 * Interoperability and integration with Microsoft 365 or other UC tools.

Servers & Storage

 * Physical and virtual server installation, configuration, and support (Windows Server, Linux distributions).
 * Expertise in virtualisation platforms (VMware vSphere)
 * Storage provisioning, replication, and backup solutions.
 * Cisco UCS, Hyperflex, FlexPOD
 * Netapp

Infrastructure Automation & Monitoring

 * Scripting and automation
 * Infrastructure as Code (IaC) experience (Terraform, Ansible).
 * Splunk, Grafana

Video Conferencing Systems

 * Deploy, configure, and troubleshoot Cisco VTC endpoints (Room Kits, Webex Boards, SX/MX series, Desk series).
 * Knowledge of Zoom Rooms, Microsoft Teams Rooms, and interoperability gateways.

Cloud Infrastructure

 * Amazon Web Services (AWS) architecture and management.
 * Hybrid cloud deployments & integration with on-premise systems.
 * Cloud networking, security groups, and resource optimisation.

## Description

* HS and LS Voice and Video telephony platforms.
 * Partner Connectivity across the UK and overseas
 * Underlying infrastructure to support UC Applications
 * Develop additional UC skills to aid in the support of other UC Team Collaboration
 * Tools and Audio-Visual and Managed Events capability to help create a multidisciplinary team.
 * Hardware installation/configuration
 * Infrastructure support - Flexpod, NettApps
*

To be successful in this role, you will have the following skills, knowledge and experience


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