Data Quality Analyst, Quantitative Platform

Winton; Greater London; On-site; GBP 60,000 - 90,000; Full time

Job summary

Winton, a research-based investment management company, is seeking a Data Analyst for the Quantitative Platform team in London. You will own the quality, consistency, and discoverability of datasets as they move from onboarding into production, upholding data standards and catalogues across vendor data and time series.

Collaborate with Data Engineers, Quant Researchers, and Strategy Managers to ensure accurate mapping, reproducible results, and auditable data quality.

Qualifications

• 3+ years’ experience working with financial data vendors and their products.
• Strong grasp of cross-asset class time series data and requirements from a quantitative strategy perspective.
• Strong data modelling skills, with the ability to design clear entity relationships and validate that models match real-world data.
• Hands-on analytical experience using Python, and the ability to summarize findings clearly for both technical and non-technical audiences.
• Meticulous attention to detail and a bias toward evidence-based conclusions.
• Excellent communication and collaboration skills, and the ability to work in a team in a fast-moving, data-centric environment.

Responsibilities

• Defining and executing rigorous acceptance criteria for new and evolving data products.
• Acting as a subject-matter expert on our data products, helping Strategy Managers with vendor formats, data anomalies, and documentation gaps.
• Building and maintaining an automated catalogue of datasets (descriptions, owners, refresh cadence, SLAs, source systems, schemas, known limitations).
• Systematically probe new and existing datasets to ensure they meet high data quality standards, including stress-testing point-in-time, versioning, and revision semantics.
• Contributing to data quality frameworks, onboarding checklists, and documentation (data dictionaries, lineage notes, known limitations).
• Partnering with Data Engineers, Quant Researchers, and operations on repeatable data triage and handoffs when anomalies appear in production datasets.

Skills

Python

Data modelling

Data quality

Vendor data

Cross-asset time series

Communication

Job description

Winton, a research-based investment management company, is seeking a Data Analyst for the Quantitative Platform team in London. You will own the quality, consistency, and discoverability of datasets as they move from onboarding into production, upholding data standards and catalogues across vendor data and time series.

Collaborate with Data Engineers, Quant Researchers, and Strategy Managers to ensure accurate mapping, reproducible results, and auditable data quality.