Senior Unified Communications Specialist

Overview Senior Unified Communications Specialist – SME Department: Networks Telecoms Location: Leopardstown Dublin Role Type: Full-time day rate contract Hybrid (2 days onsite, with additional flexibility required for onsite out of hours scheduled and emergency support.) Role Purpose To lead and support the design, deployment, and lifecycle management of Unified Communication (UC) systems, ensuring high availability, resilience, and compliance for mission-critical services, dispatch telephony, corporate voice infrastructure, and integrated communications platforms. Key Responsibilities System Ownership: Manage Cisco Unified Communications Manager (CUCM), Unity Connection, IM&P, Expressway, and BT Command / IPTrade Proactive user support: Participate in the incident resolution and onsite troubleshooting, providing L2/L3 operational support, incident management, Root Cause Analysis; available for mission critical services. 24/7 Support: Provide operational support for dispatch systems and corporate UC infrastructure, including out-of-hours service-affecting interventions. Security & Compliance: Ensure systems are patched against known vulnerabilities and aligned with Cybersecurity Policies and Telecoms Security Services (TSS) project requirements. Vendor Coordination: Liaise with support partners for escalations, upgrades, and service continuity, ensuring SLA aligned resolution of incidents and faults, periodic service reviews and contract renewals. System Monitoring: Configure SNMP alarms and integrate with Network Telecoms NMS systems for proactive fault detection. Call Management: Oversee call routing, recording, messaging, and reporting features using RedBox, Mida eFramework, Ringmaster and other tools. Documentation & Change Control: Maintain system diagrams, change logs, and operational manuals. Participate in change management meetings and incident reviews. Testing & Lab Environments: Manage test environments for BT Command and Corporate UC infrastructure, including BT Command RefNet, Expressway and IPT clusters to validate changes before production rollout. Required Skills & Experience Proven expertise in Cisco UC platforms (CUCM, Unity, Expressway, IM&P, UCCX). Experience with IPCommand turret systems or similar and integration with Tetra Ireland NDRS is a plus. Strong understanding of UC and VoIP technologies and protocols, including VoIP & TDM protocols, DMR Radio, Telcos SIP, SBC, QoS protocols. Hands-on experience with IP protocols and tools: VLAN, HSRP, DHCP, DNS, SNMP, E1, BGP, EIGRP, OSPF. ITIL practitioner backed by industry standard certifications or adequate proven experience. Excellent troubleshooting and root cause analysis Ability to manage cross-functional teams and vendor relationships. Ability to work independently and in a team environment. Comfortable working in high-pressure, mission-critical environments. Strong organizational and time management skills. Excellent communication and writing skills. Qualifications Bachelor’s degree in Telecommunications, Computer Science, or related field. Cisco certifications (e.g., CCNP Collaboration, CCNA R&S) preferred. Minimum 5 years in UC operations, ideally in utility, trading or emergency services sector. Availability Must be available for scheduled maintenance outside business hours. Flexibility to respond to incidents affecting 24/7 operations. (Additional information is available on successful application) If you are interested in applying for this role, please do so via the relevant link. If you would like to discuss this role in confidence, please apply or contact Chris(dot)Byrne(at)eirevo(dot)ie. Ref: EET