IT Service Transition Manager

Talentedge; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

Talentedge is partnering with a large consumer-facing organisation undergoing a major technology transformation. The role focuses on client-side coordination of an MSP transition, ensuring business-as-usual operations in a 24/7 environment and navigating complex supplier relationships across nationwide sites.

The successful candidate will lead technical discovery, documentation, and handovers, coordinating MS P and ISP migrations with internal IT teams to deliver a seamless transition into BAU.

Qualifications

• Experience coordinating MSP transitions, ideally client-side.
• Proven ability to manage ISP/WAN migrations across multiple sites.
• Experience documenting configurations, processes and knowledge transfer.
• Strong ITIL knowledge with service readiness and BAU handover.
• Ability to challenge suppliers and manage complex relationships.
• Excellent organisation for high-volume site migrations and workstreams.

Responsibilities

• Coordinate end-to-end MSP transition milestones, dependencies and deliverables.
• Lead technical discovery of the IT estate including network configurations.
• Ensure accurate documentation and structured handovers between MSPs.
• Oversee ISP, WAN and network migrations across hundreds of sites.
• Collaborate with internal teams to identify issues and dependencies.
• Manage relationships with incumbent and incoming providers, suppliers.
• Support development of ITIL processes, JML and service documentation.
• Coordinate transitions across Microsoft 365, Azure, Entra ID and endpoints.
• Monitor risks, issues, dependencies and provide progress reporting.
• Support service readiness, testing, cutovers and Early Life Support.

Skills

MSP-to-MSP transition

Stakeholder management

ITIL

Networking knowledge

Project coordination

Vendor management

Documentation & knowledge transfer

BAU readiness

Tools

Microsoft 365

Azure

Entra ID

Endpoint management

Job description

Talentedge is working with a large, well-established consumer-facing organisation undergoing a significant technology transformation programme.

The business is transitioning from its incumbent Managed Service Provider (MSP) to a new strategic technology partner, alongside a major ISP and network connectivity migration across its extensive nationwide estate.

We are looking for an experienced IT Service Transition Manager to take ownership of the client-side coordination of this programme, ensuring a smooth transition while maintaining business-as-usual operations across a 24/7 environment.

This is a particularly complex transition requiring someone with strong technical understanding, excellent organisational skills and the confidence to manage and challenge external suppliers.

A key focus will be on technical discovery, understanding existing configurations and processes, ensuring accurate documentation and coordinating large-scale ISP and MSP migrations.

The Role

• Manage and coordinate the end-to-end MSP transition, ensuring key milestones, dependencies and deliverables are achieved.
• Lead and coordinate technical discovery across the existing IT estate, including infrastructure, network configurations, systems, services and operational processes.
• Ensure accurate technical documentation, knowledge transfer and structured handovers between the incumbent and incoming MSP.
• Coordinate large-scale ISP, WAN and network connectivity migrations across hundreds of operational sites, including new line installations, site readiness and cutover planning.
• Work closely with internal infrastructure, networking and service delivery teams to identify technical issues, understand dependencies and elevate where necessary.
• Manage relationships with the incumbent MSP, incoming provider and third-party suppliers, confidently challenging delays, incomplete documentation and delivery issues.
• Support the development and documentation of ITIL processes, knowledge bases and operational procedures, including Joiners/Movers/Leavers (JML).
• Coordinate transition activity across Microsoft 365, Azure, Entra ID, endpoint management, infrastructure and networking environments.
• Oversee risks, issues, dependencies and transition reporting, ensuring stakeholders have clear visibility of progress.
• Support service readiness, testing, cutovers and Early Life Support, ensuring services successfully transition into BAU.
• Ensure continuity of IT services throughout the programme, minimising disruption to a large, 24/7 operational environment.

About You

• Proven MSP-to-MSP transition experience, ideally in a client-side capacity, coordinating incumbent exits and onboarding new strategic providers.
• Strong experience with ISP, WAN or network connectivity transitions, ideally involving multiple sites, connectivity providers and new line installations.
• Demonstrable experience undertaking technical discovery, understanding existing configurations and processes, and coordinating documentation and knowledge transfer.
• Good technical understanding of networking, infrastructure, cloud environments and IT service management, with the ability to identify issues and challenge technical stakeholders.
• Familiarity with network configurations, Microsoft 365, Azure, Entra ID and endpoint management.
• Strong understanding of ITIL processes, service readiness, operational procedures and transition into BAU.
• Experience managing complex supplier relationships, including challenging incumbent providers and ensuring accountability for deliverables.
• Excellent organisational skills, with the ability to manage high volumes of site migrations, competing priorities and multiple technical workstreams.
• Strong stakeholder management, communication and escalation skills.
• Experience working within large, multi-site or business-critical technology environments.
• Large-scale connectivity migrations across retail, leisure, hospitality or other distributed estates.
• New site openings, site connectivity installations or construction-related IT deployments.
• Developing JML processes, knowledge bases and service documentation.
• Data centre migrations, hosted infrastructure transitions or legacy service decommissioning.

Why Join?

This is an opportunity to play a central role in a major technology transformation, overseeing the transition of a large, business-critical IT estate to new strategic technology providers.

You will have significant responsibility for coordinating complex technical workstreams, managing key supplier relationships and ensuring the organisation is operationally ready for its new IT service model.