Senior Data Scientist

Overview

My client is a fast-growing UK business serving thousands of customers. They are investing heavily in their data capability and are now looking to appoint a Lead Data Scientist to drive end-to-end machine learning delivery within a regulated financial environment.

Role

This is a hands‑on role combining technical ownership and production‑grade model deployment.

Responsibilities

• Own end‑to‑end ML solutions – from problem framing and feature engineering to deployment, monitoring, and governance.
• Translate business objectives into modelling strategies aligned to risk appetite and operational constraints.
• Build and deploy models using Python, SQL, and AWS (SageMaker or equivalent).
• Partner closely with Engineering, Data, and Risk/Financial Crime teams to ensure robust, production‑ready solutions.
• Establish monitoring frameworks for performance, drift, and retraining.
• Drive clear documentation, traceability, and governance appropriate for a regulated environment.

Essential Experience

• Proven commercial ML/Data Science delivery with measurable impact.
• Experience taking models into production and managing performance over time.
• Prior experience leading or mentoring Data Scientists.
• Strong Python (pandas, numpy, scikit‑learn or similar).
• Strong SQL (complex joins, aggregations, analytical functions).
• Solid grounding in applied statistics, evaluation design, calibration, bias/fairness.
• Experience working closely with Engineering/Data teams in production‑first environments.
• Comfortable operating within regulated industries.

Desirable

• AWS experience (S3, Athena/Glue, IAM, Lambda).
• SageMaker or equivalent ML platform experience.
• Financial services domain knowledge (risk, fraud, affordability, payments).
• Experience with model explainability and governance documentation.

Package & Benefits

• Hybrid working model.
• Competitive pension.
• Additional paid leave (birthday, charity, wellbeing, life events).
• Employee assistance programme & Virtual GP.
• Modern collaborative office environment.

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