Enterprise Voice and AV Engineer

Northern Ireland Water Limited; Belfast; Hybrid; GBP 55,000 - GBP 75,000; Full time

Job summary

A global financial services organization in Northern Ireland is seeking an experienced Enterprise Voice & AV Engineer. This role involves leading the transformation of the Unified Communications infrastructure, supporting advanced voice solutions, and ensuring system reliability. Applicants should have extensive experience in voice platforms, SBCs, and cloud technologies. The position offers a hybrid working model and a chance to work on major infrastructure projects, enhancing both personal and professional development.

Benefits

Hybrid working model

Long-term development opportunities

Collaborative engineering culture

Qualifications

• Extensive experience with Enterprise Voice and Unified Communications platforms.
• Strong expertise in Session Border Controllers (SBCs) and SIP trunking.
• Proven background in IP telephony and voice networking.
• Strong knowledge of Cisco Unified Communications environments.
• Experience with voice gateway migration and transformation.
• Hands‑on experience with cloud‑hosted voice infrastructure.
• Strong understanding of LAN/WAN networking for voice.
• Experience supporting Microsoft Teams voice and collaboration integration.

Responsibilities

• Design, implement, and support enterprise voice solutions across SBC, VOIP, and UC platforms.
• Act as Technical Lead for strategic voice and collaboration migration projects.
• Engineer and support cloud‑based voice infrastructure and hybrid telephony environments.
• Provide advanced troubleshooting across voice, video, and AV systems.
• Develop and maintain automation scripts to improve operational efficiency.
• Maintain monitoring frameworks to ensure system reliability and performance.
• Act as an L2/L3 escalation point for complex voice and AV issues.
• Ensure compliance with internal change control and operational governance processes.
• Work closely with global technology and business teams to enhance voice and collaboration services.

Skills

Enterprise Voice and Unified Communications platforms

Session Border Controllers (SBCs) and SIP trunking

IP telephony and voice networking

Cisco Unified Communications environments

Voice gateway migration and transformation

Cloud-hosted voice infrastructure

LAN/WAN networking for voice

Microsoft Teams voice and collaboration integration

Automation scripting (PowerShell, Python, or Bash)

Job description

Engineer - Enterprise Voice & AV

Belfast | Hybrid Working
Senior Technical Level

About the Company

We 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 Opportunity

This 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 Responsibilities

• Design, implement, and support enterprise voice solutions across SBC, VOIP, and UC platforms
• Act as Technical Lead for strategic voice and collaboration migration projects
• Engineer and support cloud‑based voice infrastructure and hybrid telephony environments
• Provide advanced troubleshooting across voice, video, and AV systems
• Develop and maintain automation scripts (PowerShell, Python, or similar) to improve operational efficiency
• Maintain monitoring frameworks to ensure system reliability and performance
• Act as an L2/L3 escalation point for complex voice and AV issues
• Ensure compliance with internal change control and operational governance processes
• Work closely with global technology and business teams to enhance voice and collaboration services

Essential Experience & Skills

• Extensive experience with Enterprise Voice and Unified Communications platforms
• Strong expertise in Session Border Controllers (SBCs) and SIP trunking
• Proven background in IP telephony and voice networking
• Strong knowledge of Cisco Unified Communications environments
• Experience with voice gateway migration and transformation
• Hands‑on experience with cloud‑hosted voice infrastructure
• Strong understanding of LAN/WAN networking for voice
• Experience supporting Microsoft Teams voice and collaboration integration

Desirable

• Experience developing automation using PowerShell, Python, or Bash
• Exposure to enterprise Audio/Visual systems, digital signage, or IPTV
• Familiarity with modern workplace collaboration environments
• Strong analytical, troubleshooting, and project delivery skills
• Excellent communication and cross-functional collaboration capability

Special Requirements

• Occasional out‑of‑hours or weekend support may be required for system changes or implementations.

Why Join?

• Join a globally recognised, technology‑led financial services environment
• Work on complex, business‑critical voice and collaboration systems
• Play a key role in major infrastructure transformation and cloud migration initiatives
• Hybrid working model with strong long‑term development opportunities
• Be 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 02896935520 or [e-mail].

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.