About USDiacom Computer Telephony (Diacom) is a communication service company, whichspecialises in helping our customers deploy innovative, technically advanced solutionsin Voice, Data, SAN/Storage and Cyber Security. These high-performance solutionsoffer excellent price/ performance ratios delivering exceptional customer value andthus providing our customers with a competitive advantage within the marketplace.Diacom is an indigenous Irish company that has been in business and profitable forover 25 years.About the RoleThe IP Telephony Engineer is responsible for the design, implementation, optimisation, and ongoing support of advanced IP telephony and Unified Communications (UC) solutions across Diacom's customer environments. This role ensures the stability, performance, security, and scalability of customer telephony platforms while supporting business growth, service excellence, and continuous innovation within the Telephony division.Essential Duties & ResponsibilitiesDeploy and support enterprise voice technologies, including Session Border Controllers (SBCs), SIP services, VoIP gateways, firewalls, and network switches.Design, deploy, configure, and maintain Unified Communications infrastructure across on-premises and cloud-based environments.Support and manage enterprise UC platforms to ensure high availability and performance.Integrate IP telephony solutions with data networks, MPLS, VPNs, and cloud services.Plan and manage firmware upgrades, scheduled maintenance windows, and infrastructure enhancements.Provide Level 2 and Level 3 support for IP telephony and UC services in line with customer SLAs.Perform testing, provisioning, monitoring, and operational support for voice network services.Respond to incidents and emergencies, including after-hours support for critical infrastructure events.Troubleshoot complex voice, media, and signalling issues using packet captures, logs, and diagnostic tools.Produce detailed reports for stakeholders on telephony performance, trends, incidents, and outcomes.Collaborate with Networks, Managed Services, Cybersecurity, and Helpdesk teams on inter-departmental initiatives.Provide technical input to Sales and Account Management teams, including solution design and pre-sales support.Participate in the monthly after-hours on-call roster for critical events.Participation in on-call rotation or after-hours incident response.About you2 - 4 years experienceIrish or EU CitizenExperience with Yealink and Cloud is a big differential.Full Driver's License is a mustWhy Work with usAs a valued member of our team, you have access to a range of benefits and perks toensure you thrive at Diacom, including:Hybrid Work environmentFree parkingSubsidised FuelCompany Car