Data Cleansing Analyst
Posted Today by Altum Consulting
£300 Per day
Outside
Hybrid
London, England, United Kingdom
Summary: The Data Cleansing Analyst role is a contract position focused on supporting a major data migration programme within a fast-paced commercial operations environment. The analyst will be responsible for cleansing, validating, and preparing large datasets for migration into a new enterprise system. This role requires strong Excel skills and a commitment to data accuracy, with an emphasis on delivering high-quality outputs under tight deadlines. The position is hybrid, requiring three days a week in London, and is outside IR35.
Key Responsibilities:
- 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
Key Skills:
- 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)
Salary (Rate): £300.00/daily
City: London
Country: United Kingdom
Working Arrangements: hybrid
IR35 Status: outside IR35
Seniority Level: undetermined
Industry: Other
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.