UC Platforms Sr Engineer — Cisco Telephony Infrastructure

Job description

Provide hands-on engineering support for the installation, maintenance, and lifecycle management of servers and infrastructure underpinning the Cisco telephony environment.

Duties

• Install, configure, and maintain Cisco Unified Communications Manager (CUCM), Cisco Unity Connection, and related call processing servers.
• Perform server builds, OS-level patching, and platform upgrades for telephony application servers, including cluster configuration and failover setup.
• Manage server capacity planning, resource allocation, and performance tuning across the telephony server estate.
• Monitor server health, uptime, and system logs, and resolve hardware or software issues affecting call processing.
• Administer virtualized telephony servers (VMware/UCS), including provisioning, snapshots, and resource pools.
• Manage and maintain Cisco UCS server infrastructure in Intersight Managed Mode (IMM), including server profiles, policies, and firmware compliance.
• Develop and maintain Ansible playbooks to automate server provisioning, configuration management, and routine maintenance tasks across the telephony server estate.
• Coordinate hardware and firmware maintenance with vendors, including replacement, upgrades, and end-of-life planning.
• Maintain backup and disaster recovery procedures for telephony servers, including DRS backups and restore testing.
• Support integration between telephony servers and adjacent systems: SBCs, gateways, voicemail, and call recording platforms.
• Document server architecture, build standards, and maintenance procedures.
• Provide root cause analysis and escalation support for server-related incidents impacting telephony services.
• Collaborate with the UC Tier II/III/SME Engineer and networking teams to align server infrastructure with broader collaboration architecture.

Required Skills and Qualifications

• Strong hands-on experience installing and maintaining Cisco CUCM, Cisco Unity Connection, and IM & Presence servers.
• Proficiency with Cisco UCS server hardware and VMware virtualization for telephony workloads.
• Hands-on experience managing Cisco UCS infrastructure via Cisco Intersight, including Intersight Managed Mode (IMM) for server profile configuration, firmware management, and policy-based provisioning.
• Experience with server OS administration (Linux-based appliance OS for Cisco UC applications).
• Solid understanding of telephony protocols: SIP, H.323, MGoogle Cloud Platform, SCCP.
• Experience with Cisco Unified Serviceability, RTMT, and Disaster Recovery System (DRS) tools.
• Familiarity with clustering, redundancy, and failover design for high-availability telephony platforms.
• Knowledge of storage and backup practices as they apply to telephony application servers.
• Scripting/automation experience (Ansible, PowerShell, Python, or similar) for server provisioning, configuration management, and reporting.
• Working knowledge of Ansible for automating repeatable infrastructure tasks and enforcing configuration consistency across the telephony server environment.
• Strong troubleshooting skills, with a focus on root-cause analysis for server-level incidents.
• Excellent communication skills across technical and non-technical stakeholders.
• Preferred: Cisco certifications (CCNP Collaboration or equivalent), VMware certification, Cisco Intersight/UCS certification, or ITIL familiarity.