Senior Data Scientist — Riverside Retail
Chicago, IL · May 2023 — Present
- Built the SKU-level demand-forecasting model (LightGBM + Prophet ensemble) now driving $22M of annual inventory spend; cut over-stock 18% and stock-outs 11% across the top 4 categories in the first year.
- Owned the experiment program: scoped 24 tests, wrote the analysis playbook the team now uses, and shipped 6 wins compounding to $4.8M ARR over 18 months.
- Replaced the legacy churn model (logistic regression) with a hand-tuned XGBoost pipeline + SHAP explainability; ROC AUC moved from 0.71 to 0.84 and the model became the single biggest driver of save-team prioritization.
- Built the team's first reproducible training pipeline (MLflow + Airflow + dbt); cut time from experiment to production model from 6 weeks to 9 days per the team retro.