Engineer - Enterprise Voice & AVBelfast | Hybrid WorkingSenior Technical LevelAbout the CompanyWe are a global financial services organisation with a strong focus on technology, connectivity, and critical communications infrastructure. The business operates across international markets and supports complex, high-availability platforms that rely on resilient voice and collaboration technologies.With teams based across multiple regions and time zones, the organisation invests heavily in modernisation, automation, and cloud transformation to ensure performance, reliability, and scalability across its global communications estate.The OpportunityThis is a technically demanding role for an experienced Enterprise Voice & AV Engineer. You will join a global engineering function responsible for the reliability and transformation of the organisation's Unified Communications, Voice, and Audio/Visual infrastructure.You will lead key migration and modernisation initiatives, including the move from legacy voice gateways to modern SBC platforms and the migration of enterprise voice infrastructure into cloud environments. The role combines deep technical engineering with hands-on troubleshooting and global stakeholder collaboration.Key ResponsibilitiesDesign, implement, and support enterprise voice solutions across SBC, VOIP, and UC platformsAct as Technical Lead for strategic voice and collaboration migration projectsEngineer and support cloud-based voice infrastructure and hybrid telephony environmentsProvide advanced troubleshooting across voice, video, and AV systemsDevelop and maintain automation scripts (PowerShell, Python, or similar) to improve operational efficiencyMaintain monitoring frameworks to ensure system reliability and performanceAct as an L2/L3 escalation point for complex voice and AV issuesEnsure compliance with internal change control and operational governance processesWork closely with global technology and business teams to enhance voice and collaboration servicesEssential Experience & SkillsExtensive experience with Enterprise Voice and Unified Communications platformsStrong expertise in Session Border Controllers (SBCs) and SIP trunkingProven background in IP telephony and voice networkingStrong knowledge of Cisco Unified Communications environmentsExperience with voice gateway migration and transformationHands-on experience with cloud-hosted voice infrastructureStrong understanding of LAN/WAN networking for voiceExperience supporting Microsoft Teams voice and collaboration integrationDesirableExperience developing automation using PowerShell, Python, or BashExposure to enterprise Audio/Visual systems, digital signage, or IPTVFamiliarity with modern workplace collaboration environmentsStrong analytical, troubleshooting, and project delivery skillsExcellent communication and cross-functional collaboration capabilitySpecial RequirementsOccasional out-of-hours or weekend support may be required for system changes or implementations.Why Join?Join a globally recognised, technology-led financial services environmentWork on complex, business-critical voice and collaboration systemsPlay a key role in major infrastructure transformation and cloud migration initiativesHybrid working model with strong long-term development opportunitiesBe part of a collaborative and inclusive engineering culture To speak in absolute confidence about this opportunity please send an up-to-date CV via the link provided or contact Senior Recruitment Consultant Stuart Kennedy at MCS Group on or .Even if this position is not right for you, we may have others that are. Please visit MCS Group to view a wide selection of our current jobs.Skills:Voip Voice & AV AV EngineerBenefits:Hybrid Progression BonusWHJS1_NI