Job Description
Data Analyst (SQL / Data Quality) – Contract – London / Hybrid
Robert Half is supporting a global consulting firm in the search for a hands-on Senior Data Analyst to join a major transformation programme. This role is focused on deep data analysis, SQL investigation, and resolving data quality issues, working closely with stakeholders but primarily operating within the data itself day-to-day.
Assignment Details
* Initial 6-month contract (strong likelihood of extension)
* Start Date: 2–3 weeks (fast-track onboarding)
* Location: Hybrid (1–2 days per week in London)
* Rate: £450 p/day via FCSA-accredited umbrella
The Role
This is a heavily SQL-driven role suited to someone comfortable interrogating datasets, identifying issues, and resolving data problems across complex environments.
Key Responsibilities
* Hands-on SQL analysis of datasets to identify data quality issues, inconsistencies, and root causes
* Investigating and resolving data issues across multiple systems and data sources
* Performing data validation, reconciliation, and transformation checks
* Working on source-to-target mapping and ensuring accuracy of data flows
* Analysing complex and overlapping datasets (deduplication, cleansing, anomaly detection)
* Supporting migration and transformation workstreams with a strong focus on data accuracy
* Producing data artefacts such as data dictionaries, validation rules, and mapping documentation
* Working with BI/reporting teams to ensure data is fit-for-purpose
* Supporting data governance activities including PII, GDPR, and data controls
Required Experience
* Strong hands-on experience as a Data Analyst in data-heavy environments
* Strong SQL skills – must be confident querying and analysing data independently
* Proven experience investigating and resolving data quality issues
* Experience with data validation, reconciliation, and data cleansing
* Strong experience with data migration, mapping, and transformations
* Comfortable working with large, messy datasets across multiple sources
* Strong Excel skills
* Understanding of data structures and relationships (data models, entities)
* Practical understanding of data governance concepts (GDPR, PII, data controls)
Nice to Have
* Experience with Snowflake, Databricks or similar modern data platforms
* Exposure to MDM tools (e.g. Profisee, Ataccama)
* Financial services data experience
* Visio or process mapping tools
Additional Information: All candidates must complete standard screening (Right to Work, DBS, credit/sanctions, employment verification)