UC Transformation Consultant

JR United Kingdom; Liverpool; Remote; GBP 70,000 - 95,000; Full time

Job summary

A leading company is seeking a Senior Unified Communications Consultant to lead the migration from Avaya to Microsoft Teams Voice. The ideal candidate will have extensive experience in telephony architecture, a strong understanding of Microsoft Teams, and the ability to create comprehensive migration reports. This fully remote role includes occasional site visits and offers a competitive salary based on expertise.

Qualifications

• Proven track record of migrating from legacy PBX to Microsoft Teams Voice.
• Experience with compliance voice recording platforms and managed service transitions.
• Ability to produce high-quality consulting artefacts.

Responsibilities

• Lead workshops and assess existing Avaya systems for the migration.
• Document migration strategies and produce detailed consulting reports.
• Engage with client stakeholders across multiple domains.

Skills

Stakeholder engagement

Microsoft Teams Voice expertise

Deep knowledge of Avaya systems

Risk assessment

Technical documentation

Education

Microsoft 365 Certified: Teams Voice Engineer Expert

Avaya certifications (ACSS, ACIS)

Job description

Senior Unified Communications Consultant – Microsoft Teams Voice & Avaya Migration

Location: Remote (UK-based preferred) with occasional customer site visits

Role Overview:

We are seeking a highly experienced Senior Unified Communications Consultant to lead and deliver a full discovery and transformation report for the migration of an enterprise Avaya on-premise telephony environment to Microsoft Teams Voice. The successful candidate will produce a high-fidelity consulting report akin in structure and depth to a network SASE transformation plan, detailing current-state architecture, Teams deployment flavours, migration stages, risk and commercial considerations, and post-migration support strategy.

Key Responsibilities:

• Lead discovery workshops with client stakeholders across IT, Network, Telephony, and Security domains.
• Conduct comprehensive assessment of the existing Avaya on-premise telephony architecture, including PBXs, call routing, SBCs, integrations (e.g. call recording, CRM, contact centres), and trunking (SIP/ISDN).
• Map the current-state to the target Microsoft Teams architecture using Direct Routing, Operator Connect, and Microsoft Calling Plans.
• Document and evaluate the pros, cons, and use cases for each Teams Voice deployment option relevant to the customer.
• Identify dependencies, gaps, risks, and organisational readiness for cloud telephony adoption.
• Develop a detailed, staged migration strategy including timelines, cost models, and technical migration steps.
• Build a report document that includes:
• - Executive summary and transformation benefits
• - Key recommendations
• - Migration stages with associated risks, commercial impact, and architecture evolution
• - Integration with call recording, compliance tools, and legacy services
• - Commercial model with ROI forecast
• - Appendices with diagrams, BOM, capacity planning, vendor comparisons, and relevant Visio/Excel artifacts
• Proven track record of delivering transformation/migration strategies from legacy PBX to Microsoft Teams Voice at enterprise scale.
• Deep knowledge of Avaya systems (Aura, IP Office, CM, etc.) and telephony infrastructure (SBCs, SIP trunks, gateways).
• Expertise across Microsoft Teams Voice ecosystem: Operator Connect, Direct Routing, Microsoft Calling Plans, Teams Phone System.
• Familiarity with regulatory requirements and integrations (e.g., PCI-DSS, MiFID II, call recording, CRM, etc.)
• Experience in producing customer-facing consulting artefacts with a high standard of technical depth and executive relevance.
• Excellent stakeholder engagement and communication skills.
• Microsoft 365 Certified: Teams Voice Engineer Expert (MS-720 or equivalent)
• Avaya certifications (ACSS, ACIS) or similar vendor credentials
• Experience with compliance voice recording platforms (e.g., NICE, Verint, ASC, RedBox)
• Familiarity with managed service transitions or service design frameworks (e.g., ITIL, TOGAF)
• A comprehensive, reference-quality migration and transformation report (PDF + associated artefacts)
• Visio diagrams of current and target architectures
• Commercial and ROI analysis (Excel-based)
• Risk matrix and mitigation plans
• Executive PowerPoint summary (optional but preferred)

Please note that if you are NOT a passport holder of the country for the vacancy you might need a work permit. Check our Blog for more information.

Bank or payment details should not be provided when applying for a job. Eurojobs.com is not responsible for any external website content. All applications should be made via the 'Apply now' button.

Created on 26/06/2025 by JR United Kingdom