Data Migration Manager

Next Ventures
London

We are seeking an experienced Data Migration Lead to take ownership of data migration activities across a major business transformation or ERP programme. The successful candidate will lead the end-to-end migration lifecycle, from strategy and planning through data extraction, transformation, cleansing, validation, reconciliation and cutover.

The role will work closely with business stakeholders, functional leads, technical teams and third-party implementation partners to ensure data is migrated accurately, securely and in line with programme timelines.

Key Responsibilities

  • Define and own the overall data migration strategy, approach and roadmap .
  • Lead data migration activities across the full project lifecycle, from discovery through to go-live and hypercare.
  • Assess legacy data sources, structures, quality and dependencies.
  • Develop and maintain migration plans, timelines, milestones and deliverables.
  • Lead data extraction, transformation, cleansing, mapping, validation and loading activities.
  • Define data mapping rules and ensure alignment between legacy and target systems.
  • Establish and manage data quality, governance and reconciliation processes .
  • Coordinate migration activities across business, functional, technical and third-party teams.
  • Work closely with functional leads to understand business data requirements and validate migrated data.
  • Oversee ETL/migration tooling and ensure appropriate technical solutions are implemented.
  • Manage migration risks, issues, dependencies and decisions, escalating where required.
  • Define and manage migration testing, mock loads, dress rehearsals and cutover activities.
  • Lead data reconciliation and sign-off processes with business stakeholders.
  • Support cutover planning and execution, including final data loads and migration validation.
  • Provide leadership during go-live and post-go-live data migration/hypercare activities.
  • Produce migration documentation, status reporting and governance materials.
  • Mentor and coordinate data migration analysts, consultants and technical resources where applicable.

Required Experience

  • Significant experience delivering end-to-end data migration programmes .
  • Strong experience working on ERP, CRM, HRIS or other large-scale business transformation programmes .
  • Proven experience with complex legacy-to-target system migrations.
  • Strong understanding of data extraction, transformation, cleansing, mapping, validation and reconciliation.
  • Experience leading migration workstreams and managing technical and business stakeholders.
  • Strong understanding of data governance and data quality principles.
  • Experience with migration testing, mock migrations and cutover planning.
  • Strong stakeholder management and communication skills.
  • Experience working within large, complex or international programmes.
  • Ability to manage multiple workstreams, priorities, risks and dependencies effectively.

Desirable Experience

  • Experience with SAP S/4HANA data migration programmes.
  • Experience with SAP migration tooling such as SAP Migration Cockpit, SAP Data Services or SAP BTP .
  • Experience with ETL tools and data transformation technologies.
  • Experience migrating data across multiple countries, business units or legal entities.
  • Previous experience within consulting or large-scale systems integration environments.
  • Experience with ERP transformation, carve-outs, acquisitions or global template rollouts.
  • Relevant data, technology or project management qualifications.
Posted 2026-09-24

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