Principal Data Modeller | Credit / Financial Data
Contract
London | Hybrid / flexible working
£600 p/d Outside of IR35 | 6 Months Rolling Contract
This role requires a senior data modeller to take ownership of a complex financial data domain within a global data and analytics environment focused on defining and stabilising a core credit data model used across multiple products and consumers. You’ll be expected to operate independently, make modelling decisions with incomplete information, and leave behind a clear, buildable structure for engineering teams.
This is a hands-on modelling authority position!
THE ROLE
- Own the conceptual → logical → physical data model for a core credit domain
- Define and refine key entities such as issuer, instrument, rating, event, and time/history
- Work across fragmented and under-documented data sources to establish clean, canonical definitions
- Produce source-to-target mappings, data dictionaries, and lineage artefacts
- Ensure models are aligned with downstream delivery (data products, feeds, APIs)
- Partner with product, engineering, and domain stakeholders to drive decisions and resolve ambiguity
- Set modelling standards that others can follow and build against
THE REQURIMENTS
- Strong experience owning enterprise data models (conceptual, logical, physical)
- Proven background in financial services data (credit, risk, markets, or reference data)
- Ability to work in messy environments and reverse-engineer existing data structures
- Experience producing canonical models and governance artefacts
- Comfortable operating independently without heavy oversight
- Strong stakeholder engagement and ability to challenge where needed
- Exposure to Snowflake / modern cloud data platforms
- Experience working with data products, feeds, or APIs
- Familiarity with Data Vault / dimensional modelling approaches
- Experience in environments with multiple data consumers and distribution channels
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