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SIP​/Unified Communications Project Manager; FTC)

Job in City Of London, Central London, Greater London, England, UK
Listing for: Square One Resources Limited
Contract position
Listed on 2026-09-27
Job specializations:
  • IT/Tech
    IT Project Manager
Salary/Wage Range or Industry Benchmark: 90000 GBP Yearly GBP 90000.00 YEAR
Job Description & How to Apply Below
Position: SIP / Unified Communications Project Manager (FTC)
Location: City Of London

Job Title: Project Manager - SIP / Unified Comms (FTC)
Location: City Of London 3x a week
Salary/Rate: Up to £90,000
Start Date: In the next two weeks
Job Type
:
Initial 6 months fixed term contract - likelihood of extension

Company Introduction:

We have an exciting opportunity now available with one of our global leading law firm clients! They are currently looking for a project manager to join their team for a six-month fixed term contract.

You will be supporting one of our key customers in Central London, you will be joining our energised and focused Programme and Project team who are working hard to deliver exceptional value across a global estate.

With a demonstrable background in infrastructure project delivery, you will have successfully managed complex, highly visible technical projects, ideally including SIP trunking, Unified Communications, telephony, contact centre, voice, network or collaboration technology change.

Responsibilities of the Project Manager include:
  • Define, agree and manage the delivery approach, plan, dependencies and resources required for technical infrastructure work streams
  • Lead delivery of SIP / Unified Communications projects, including planning, migration, cutover, testing, service transition and operational handover activities
  • Coordinate technical teams, third-party suppliers and client stakeholders across voice, network, telephony, contact centre and collaboration technology work streams
  • Ensure solution designs, implementation plans and delivery activities align with the customer?s infrastructure strategy, technical standards and governance requirements
  • Work closely with internal management, business stakeholders and external partners to develop effective delivery plans, service models and transition approaches
  • Maintain robust governance, including plans, RAID, reporting, decision logs, dependency management and escalation routes
  • Manage relevant vendors and suppliers, ensuring delivery commitments, risks and issues are actively tracked and resolved
Experience required:
  • Proven experience as an Infrastructure Project Manager delivering technical change in complex enterprise environments
  • Hands-on project delivery experience across SIP trunking and Unified Communications, ideally including telephony migrations, voice platforms, contact centre technologies, Microsoft Teams Phone or equivalent UC platforms
  • Strong understanding of infrastructure delivery dependencies across networks, security, endpoints, identity, service management and operational support models
  • Focussed on Delivery:
    An ability to demonstrate a high degree of competency in project management, with similar experience in a client-facing position and in fast-paced, technically complex environments
  • Strong Multitasker:
    Demonstrates the ability to manage and prioritise multiple technical work streams simultaneously, pivoting quickly with an agile and pragmatic approach
  • Confident Communicator:
    Has excellent communication and stakeholder management skills, capable of translating technical delivery detail for business, operational and senior stakeholder audiences
  • Proactive Ownership:
    Possesses a curious mindset, takes full ownership of delivery outcomes, and actively seeks efficient, innovative ways to optimise project processes
  • Team Player: A dedicated team player who proactively identifies opportunities to support colleagues, technical teams and client stakeholders to achieve shared outcomes
  • Adaptable:
    Thrives in flexible, ambiguous environments, embracing continuous learning and experimentation to navigate complex technical and organisational circumstances
  • Solution-Focused:
    Committed to unlocking programme success, with exceptional project management discipline, strong judgement and the confidence to raise issues early
  • A…
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