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Data Cleansing Analyst

Altum Consulting

Data Cleansing Analyst (Contract)

Up to £300/day (Outside IR35)

Hybrid (3 days/week in London)
4-month contract

Immediate start

We're looking for a hands-on Data Cleansing Analyst to support a major data migration programme within a fast-paced commercial operations environment.


This is a high-impact, delivery-focused role working with large, complex catalogue and metadata datasets that must be cleaned, validated, and prepared for migration into a new enterprise system.


Strong Excel and data cleansing capability is essential; this role is not suitable for reporting or dashboard-focused analysts.


What you'll be doing


  • Cleanse, standardise, and validate large-scale datasets
  • Ensure accuracy and consistency of catalogue and metadata across systems
  • Support data migration, QA, and UAT testing activities
  • Identify and resolve data inconsistencies across multiple platforms
  • Produce exception reports and support data gap analysis
  • Assist with go-live readiness and post-implementation support
  • This is a delivery-focused role where accuracy and speed directly impact system readiness.


What we're looking for


  • Experience in data cleansing, data quality, or data operations roles
  • Advanced Excel skills (complex formulas and large datasets essential)
  • Strong attention to detail and commitment to data accuracy
  • Experience working with high-volume, structured datasets
  • Ability to work independently on structured data tasks with minimal supervision
  • Comfortable working to deadlines in a fast-paced, task-driven environment
  • Strong communication skills across multiple stakeholders


Nice to have


  • Experience in media, entertainment, or content/catalogue environments
  • Exposure to data migration, system implementation, or transformation projects
  • Familiarity with CRM or enterprise data platforms (e.g. Salesforce or similar large-scale systems)


Why this role?


  • Immediate-start, high-urgency programme
  • Long-established dataset (~25 years of legacy data)
  • Real impact role where data quality directly drives system success
  • Clear direction, focused delivery environment, minimal bureaucracy


Interested?


If you're a detail-driven Excel-heavy data contractor who enjoys working with complex datasets and delivering clean, structured outputs, we'd like to hear from you.


Apply or message directly for a quick conversation.