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# Data Scientist

- **Company:** NES Group Ltd
- **Location:** Greater London, UK
- **Contract:** Permanent contract
- **Skills:** Computing Platforms, Microsoft Azure, Data Validation, Python (Programming Language), Power BI, Sql Optimization, Apache Spark, Git, Pyspark, Data Pipelines, Databricks
- **Published:** October 30, 2026
- **Apply:** https://www.cv-library.co.uk/job/225779107/Data-Scientist

## About the Role

* Advanced SQL for large-scale customer, loyalty, payment, and transaction analysis.
 * Strong Python skills for statistical modelling, cohort analysis, weighting, matching, and reproducible analytics.
 * Hands-on experience with Databricks, Spark/PySpark, Delta tables, and automated data workflows.
 * Proficiency with Git, Azure DevOps, and controlled production release processes.
 * Strong data quality, reconciliation, and audit-trail practices.

Desirable Skills

 * Experience in loyalty programmes, CRM analytics, or retail fuel and convenience sectors.
 * Power BI or enterprise reporting platform expertise.
 * Production-grade data pipeline design, including incremental processing and Delta MERGE patterns.
 * Experimentation, uplift modelling, or incrementality validation experience.
 * Exposure to customer decisioning platforms or business needs analysis (BNA).

## Description

* Lead customer analytics initiatives, including CLV, RFM segmentation, incrementality measurement, and scenario planning.
 * Reconcile customer, transaction, and margin data to create accurate and trusted value estimates.
 * Develop and maintain analytical frameworks that explain performance drivers and identify discrepancies between data sources.
 * Partner with Finance and business stakeholders to validate methodologies and ensure value estimates are reproducible and operationalised.
 * Build scalable analytical solutions and pipelines using Databricks, Spark, and Python.
 * Establish strong data validation, audit, and reconciliation practices to support decision-making.