Job Description
Technical Business Analyst – Telecoms / Voice Migration Location: Croydon, London (Hybrid – 3 days onsite per week)
Contract: 5–6 months
Day Rate: Competitive, dependent on experience
IR35 Status: Outside IR35
The Opportunity Altered Resourcing is recruiting for an experienced Technical Business Analyst with a strong telecoms, VoIP or Unified Communications background to support a major telephony transformation project.
Our client is looking to replace its existing telephony service with a modern solution that better meets the needs of its corporate teams and sites. Microsoft Teams Phone is the preferred direction, subject to requirements gathering and a technical fit-gap assessment.
This is a hands-on Business Analysis role requiring someone who can bridge the gap between business stakeholders and IT architecture. You will play a key role in understanding the current telephony estate, identifying user and technical requirements, and producing the documentation needed to support solution selection and migration planning.
Key Responsibilities Requirements Gathering & Business Analysis
You'll be comfortable engaging with business users to understand how they use telephony day to day, while also working with technical teams to establish what the replacement solution needs to deliver.
You should be able to investigate existing systems, challenge assumptions, identify technical dependencies and turn complex requirements into clear documentation that supports informed decisions.
Experience working across a distributed, multi-site estate will be particularly valuable.
Contract Details
Apply today or contact Altered Resourcing to discuss the opportunity in confidence.
Contract: 5–6 months
Day Rate: Competitive, dependent on experience
IR35 Status: Outside IR35
The Opportunity Altered Resourcing is recruiting for an experienced Technical Business Analyst with a strong telecoms, VoIP or Unified Communications background to support a major telephony transformation project.
Our client is looking to replace its existing telephony service with a modern solution that better meets the needs of its corporate teams and sites. Microsoft Teams Phone is the preferred direction, subject to requirements gathering and a technical fit-gap assessment.
This is a hands-on Business Analysis role requiring someone who can bridge the gap between business stakeholders and IT architecture. You will play a key role in understanding the current telephony estate, identifying user and technical requirements, and producing the documentation needed to support solution selection and migration planning.
Key Responsibilities Requirements Gathering & Business Analysis
- Lead discovery sessions and stakeholder workshops to understand existing telephony services, business processes and user requirements.
- Engage with corporate teams, retail operations, branches, IT departments and external suppliers.
- Identify pain points, service limitations and opportunities to improve the existing telephony experience.
- Gather and document functional and non-functional requirements covering call handling, routing, call queues, voicemail, devices, number management and site-specific needs.
- Translate business requirements into clear, prioritised and measurable acceptance criteria.
- Manage conflicting stakeholder requirements and obtain formal business and IT sign-off.
- Work closely with IT architects, network engineers, infrastructure teams and technical specialists to validate requirements and assess technical feasibility.
- Understand the technical considerations involved in enterprise voice and VoIP deployments.
- Capture requirements relating to QoS, network connectivity, traffic prioritisation, bandwidth, call quality, resilience and service availability.
- Identify dependencies across networks, circuits, Wi-Fi, devices, identity services and existing business systems.
- Support technical fit-gap assessments of potential replacement solutions, including Microsoft Teams Phone.
- Identify risks, assumptions, issues and dependencies that could affect solution selection or delivery.
- Support supplier assessments, solution demonstrations and clarification of technical capabilities.
- Contribute to supplier selection, RFI/RFP processes and managed-service transition planning where required.
- Document current-state and future-state call flows, processes and service dependencies.
- Capture requirements for number porting, phased migration, coexistence, cutover, rollback and business continuity.
- Define user acceptance testing scenarios and business readiness requirements.
- Produce a structured, prioritised requirements package to support implementation planning and handover to delivery teams.
- Proven experience as a Technical Business Analyst or IT Business Analyst on telecoms, enterprise telephony or Unified Communications projects.
- Experience supporting a telephony platform replacement, voice migration or similar technology transformation.
- Strong understanding of VoIP and the technical considerations associated with enterprise voice services.
- Knowledge of networking concepts, including QoS, LAN/WAN connectivity, bandwidth, traffic prioritisation, resilience and call quality.
- Experience gathering and documenting requirements across multiple business and technical stakeholder groups.
- Proven ability to work alongside IT architects, infrastructure teams, network engineers and external suppliers.
- Strong workshop facilitation, requirements documentation, process mapping and stakeholder management skills.
- Experience managing requirements through validation, agreement and formal sign-off.
- Ability to translate business needs into technically informed requirements.
- Experience with Microsoft Teams Phone migrations.
- Knowledge of Teams Phone licensing, shared devices, PSTN connectivity, SIP trunking, Direct Routing or Operator Connect.
- Experience working within another large multi-site organisation.
- Experience with IVR, auto-attendants, call queues, call reporting and complex call flows.
- Experience supporting supplier selection, fit-gap assessments, RFPs or managed-service transitions.
- Understanding of number porting, phased migrations, cutover planning and service continuity.
You'll be comfortable engaging with business users to understand how they use telephony day to day, while also working with technical teams to establish what the replacement solution needs to deliver.
You should be able to investigate existing systems, challenge assumptions, identify technical dependencies and turn complex requirements into clear documentation that supports informed decisions.
Experience working across a distributed, multi-site estate will be particularly valuable.
Contract Details
- Initial 5–6 month engagement.
- Outside IR35.
- Hybrid working, with three days per week onsite in Croydon, London.
- Competitive day rate, dependent on experience.
Apply today or contact Altered Resourcing to discuss the opportunity in confidence.