Senior Data Scientist - £400 a day inside IR35

Location: London - Hybrid, 3 days per week onsite
Contract: Initial 12 months
Rate: Up to £400 per day, Inside IR35

We are looking for a hands-on Senior Data Scientist/Python Data Engineer to help develop and enhance a production intelligence and analytics platform supporting a large-scale mobile application.

This is not a traditional machine-learning-heavy Data Scientist position. The role combines Python engineering, data analytics, telemetry, API/data integration and dashboard development, turning complex datasets into clear, actionable insights for senior stakeholders.

Key Responsibilities

• Develop production-quality solutions using Python, pandas and NumPy
• Build and enhance interactive Streamlit dashboards
• Integrate data from SQL, APIs, Snowflake, OpenSearch and REST-based sources
• Analyse large telemetry datasets and identify trends, anomalies and performance issues
• Perform time-series analysis and anomaly detection
• Create effective visualisations using tools such as Plotly, Matplotlib and Seaborn
• Work with AWS S3, boto3 and Parquet-based data
• Own functionality from data ingestion through analysis to visualisation
• Maintain clean, scalable architecture and engineering standards

Key Skills & Experience

Essential:

• Strong commercial Python development experience
• Strong experience with pandas and NumPy
• Hands-on Streamlit dashboard development
• Strong SQL and API integration experience
• Data analysis and quantitative/statistical skills
• Experience working with time-series data and/or anomaly detection
• Strong data visualisation skills
• Experience developing production-grade data or analytics solutions