Data Migration Lead: Transform & Validate Complex Data

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

Job summary

Jobtailor is seeking a Data Migration Lead to drive complex transformation programmes in the UK. You will analyse data models, define mappings, and support migration design with governance and QA. The role requires hands-on data quality work, testing, and collaboration with architects and delivery teams.

You will help shape sequencing, cutover planning and post-migration monitoring, ensuring data integrity across platforms. UK-based with onsite presence 2 days per week.

Qualifications

• Strong experience leading data migration on complex transformation programmes.
• Proven ability to analyse source and target data models.
• Hands-on data mappings and reconciliation rules.
• Experience addressing data quality in large datasets.
• Involvement in migration testing, validation and issue resolution.
• Understanding of sequencing, cutover and deployment.

Responsibilities

• Analyse source and target data structures to understand differences, dependencies and risks.
• Define and document data mapping, transformation and reconciliation rules.
• Support the Business Architect in performing detailed data analysis to inform migration design.
• Identify data quality issues and support the definition and execution of data cleansing and remediation plans.
• Contribute to the definition of the overall data migration approach, including sequencing, dependency management and cutover considerations.
• Produce clear migration specifications, validation rules and test data to support delivery and testing.
• Support data migration testing activities, including reconciliation, issue investigation and resolution.
• Assist in specifying data reporting and data quality requirements for migration and post-migration states.
• Provide input into operational data ownership, controls and post-migration monitoring arrangements.
• Work within programme governance structures, supporting mobilisation and ongoing delivery.

Skills

Data migration lead

Data mapping and transformation

Data quality analysis

Migration testing

Stakeholder collaboration

Cutover planning

Job description

Jobtailor is seeking a Data Migration Lead to drive complex transformation programmes in the UK. You will analyse data models, define mappings, and support migration design with governance and QA. The role requires hands-on data quality work, testing, and collaboration with architects and delivery teams.

You will help shape sequencing, cutover planning and post-migration monitoring, ensuring data integrity across platforms. UK-based with onsite presence 2 days per week.