Data Cleansing Analyst

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.

Job Details

Company
Altum Consulting
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Salary
£250 - £300 per day
Posted