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Ali Zarreh
Enterprise Retail & supply chain

Warehouse Forecasting

Solution Architect & MLOps · H-E-B

Forecasts of outbound and pallet selection for 12 distribution centers, used to plan labor and transportation a month ahead.

WMAPE, flat across 28 days
9.05%
distribution centers
12
forecast–actual pairs monitored
2.2M

The problem

Distribution centers plan labor and trucks weeks in advance; forecasts had to be accurate across the full horizon and monitored continuously.

What I built and led

  • Architected and productionized a Databricks/Spark system on AWS forecasting outbound and pallet selection for 12 distribution centers over a 28-day horizon, with per-series XGBoost models, MLflow tracking, weekly retraining and daily scoring.
  • Built Spark-native accuracy monitoring over 2.2 million forecast–actual pairs, and shipped v2 as a zero-downtime shadow deployment.

Results

  • 9.05% WMAPE, flat across 28 days
  • 12 distribution centers
  • 2.2M forecast–actual pairs monitored
All enterprise work
Enterprise Retail & supply chain

Retail Demand Forecasting Platform

A 22-repository GCP platform forecasting SKU-store sales and promotional redemption for ~350 stores over an 89-week horizon.

~50% lower WMAPE vs. legacy

  • Forecasting
  • MLOps & platforms
  • Machine learning
Enterprise Retail & supply chain

Electronic Fulfillment Center Forecasting

A 21-day, hourly forecast of orders and units for every fulfillment-center and store pair, feeding staffing and capacity planning.

~14% WMAPE in staging

  • Forecasting
  • MLOps & platforms
Enterprise Retail & supply chain

Markdown Optimization

Price-elasticity forecasting and a constrained optimizer that recommends multi-week discount schedules merchants adopt as-is.

+11% markdown revenue (latest benchmark)

  • Optimization
  • Forecasting
  • Machine learning

Open to consulting, advisory roles and select projects.

Need this on your problem?

I work directly with teams to design, build and ship AI, forecasting and optimization systems — and stay through rollout.

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