Overview
The HR Data Migration Specialist is responsible for designing, transforming, and migrating complex HR data from legacy HCM platforms into target HR systems. This role plays a critical part in HR system implementations and transformations, ensuring data integrity, accuracy, and compliance throughout the migration lifecycle.
The role requires deep hands-on experience migrating data from Workday, Oracle HCM, and SAP SuccessFactors, alongside strong expertise in ETL tooling, HR data architecture, and complex transformation logic.
Key Responsibilities
- Data Migration & Transformation: Lead end-to-end HR data migrations from source systems including Workday, Oracle HCM, and SAP SuccessFactors into target HR platforms
- Data Migration & Transformation: Design and execute complex data transformations, mappings, and business rules across multiple HR domains (Core HR, Org Structures, Compensation, Talent, Absence, Payroll interfaces)
- Data Migration & Transformation: Build, configure, and maintain ETL processes to extract, transform, and load HR data accurately and efficiently
- Data Migration & Transformation: Perform data cleansing, enrichment, and standardisation to align with target data models
HR Data Design & Architecture
- Define and validate HR data models, structures, and hierarchies in line with best practice and target system requirements
- Advise on HR data design decisions, including effective dating, historical data strategies, and country-specific requirements
- Ensure alignment between HR functional design and technical data structures
Testing, Validation & Cutover
- Develop and execute data validation strategies, reconciliation checks, and exception handling
- Support unit testing, system testing, parallel runs, and cutover activities
- Identify, analyse, and resolve data defects and inconsistencies
- Produce migration documentation including mapping specs, transformation logic, and run books
Stakeholder & Delivery Support
- Work closely with HR, Payroll, Finance, and Technical teams to understand data requirements
- Translate HR business rules into technical transformation logic
- Provide guidance and assurance on data quality, risk, and readiness
- Support go-live and post-implementation stabilisation activities
Required Experience & Skills
Essential:
- Proven experience delivering HR data migrations from Workday, Oracle HCM, and SAP SuccessFactors
- Strong hands-on experience with ETL tools (e.g. Informatica, Talend, Boomi, MuleSoft, Azure Data Factory, or equivalent)
- Deep understanding of HR data structures and design, including effective dating, organisational hierarchies, and employee lifecycle data
- Demonstrable experience performing complex data transformations, including cross-object logic and historical data handling
- Strong SQL skills and experience working with large, complex datasets
- Experience supporting multiple migration cycles (mock loads, dress rehearsals, cutover)
Desirable:
- Experience working on global or multi-country HR implementations
- Exposure to Payroll, Time & Attendance, or Finance data integrations
- Experience in data governance, data quality frameworks, or GDPR-compliant data handling
- Consulting or transformation programme experience
Key Competencies
- High attention to detail and data accuracy
- Strong analytical and problem-solving skills
- Ability to translate business requirements into technical solutions
- Comfortable working in fast-paced, delivery-focused environments
- Clear communicator with both technical and non-technical stakeholders