Data Scientist with 20+ Years of Analytics Experience

RONALD CHASE LEWIS – Data Scientist

Professional Summary

Data-driven professional with 20+ years of experience applying analytics, automation, and data science techniques to solve complex business problems. Skilled in Python, machine learning, data visualization, and statistical analysis. Proven ability to combine business expertise with advanced analytics to drive revenue growth, optimize supply chains, and automate workflows. Technical Skills

1 Python, SQL, Pandas, NumPy, Scikit-learn

2 Machine Learning: Regression, Classification, Forecasting 3 Data Visualization: Power BI, Excel Analytics, Matplotlib 4 Tools: Jupyter Notebooks, Visual Studio Code, Git 5 Data Cleaning, Feature Engineering, Statistical Analysis 6 Business Analytics, Sales Analytics, Supply Chain Analytics Professional Experience

1 Freelance Data Scientist (2025–Present) – Developed analytics solutions using Python for business insights and forecasting.

2 AI Trainer – Oracle (2025–2026) – Evaluated and trained AI models to improve performance and data interpretation.

3 Account Manager – Steel Technologies (2001–2024) – Managed $16M+ accounts using data analysis for forecasting and operations.

4 Outside Sales – Ohashi Technical (2024–2025) – Used market and customer data to identify growth opportunities.

Projects

1 Sales Forecasting Model using Python and regression analysis. 2 Business analytics dashboard using Power BI.

3 Automated data pipeline for cleaning and analyzing datasets.