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Lewis WilbyLW

Lewis Wilby

Workday Data Lead

€1,158/day
London, GB
8-15 years

Average response time: 1 hour

About Lewis

Highly experienced Data Migration lead with over 10 years experience and a proven track record of delivering eight large-scale Workday & SuccessFactors data conversions across a board range of source systems.
Key strengths include very strong communication and analytical skills, team management and years of hands-on technical experience and an excellent eye for detail.
  • English

    Native or bilingual

Can work on-site
London (up to 50km)

Experience

  • NESO Energy
    People Data Consultant (Workday)
    ENERGY AND UTILITIES
    December 2025 - Today (6 months)
    London, UK
    • Providing consultancy data services to an in-flight Workday data migration of ~2500 UK employees, migrating from SuccessFactors & SAP ECC source systems
    • Overseeing effort to accelerate payroll parallel runs via the use EIBs loads and data reconciliation activities
    • Reviewing existing plan and data design, migration and validation materials and document any gaps & risks that may negatively affect data or cutover activities
    • Leading the data catchup for HCM data covering all employee transactions during a 2 month window between Gold build and technical go live
  • National Grid
    SuccessFactors Data Lead
    ENERGY AND UTILITIES
    March 2023 - December 2025 (2 years and 9 months)
    London, UK
    • Led a team to migrate HCM data as part of a SuccessFactors re-implementation, within a wider People digital transformation programme, covering ~30,000 workers across UK and US.
    • Accountable for ensuring the solution and data conversion alignment, with frequent reviews of key design documents, configuration updates & change requests.
    • Led a complex data catchup effort across all employee data during a period with no freeze in place on people data transactions
    • Oversaw the design and build or a PowerBI data quality dashboard and led the effort to meet data cleanse targets ahead of data migration cycles
  • WPP
    Workday Global HCM Data Lead
    PRESS AND MEDIA
    July 2020 - December 2022 (2 years and 5 months)
    London, UK
    • Contracted to lead the WPP HCM data migration workstream with a scope spanning 12 countries, ~50K employees and over 50 distinct employee data sources
    • Accountable for the successful end to end data migration process from point of extract to load into Workday, including managing delivery to plan and managing the risk profile
    • Defined the data migration approach, partnering with WPP Enterprise data architects and PWC technical leads
    • Led a team of 8 cluster leads/analysts to build a repeatable extraction, transformation, profiling, and validation process
    • Led the design and development of profiling tools, macros, and custom reports to accelerate the load and validation process

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Education

  • A-Level
    Greenhill College
    1993
    A-Level
  • BSc (Hons)
    Bournemouth University
    1997
    BSc (Hons)

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