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End-to-End Demand Forecasting for Global Retail

Retail – Supply Chain Forecasting & R&D

Multi-scale demand forecasting and inventory optimization using deep learning—reduced stock-outs/overstocks, agile supply chain.

-40%
Stockouts Reduction
+25%
Forecast Accuracy
-30%
Overstock Reduction
98%
Pipeline Automation

Supply Chain Impact

Advanced forecasting and optimization for retail supply chain

Project Details

Client

Decathlon

Sector

Retail – Supply Chain Forecasting & R&D

Year

2024–2025

Key Technologies
TensorFlowPySparkDatabricksAirflow

Mission

Lead Senior Data Scientist – Forecast Supply Chain & R&D

Supply Chain Forecasting & Optimization

Long-term mission / Paris, France

Development of predictive models including RNN and LSTM networks to capture complex temporal dynamics of demand. Stock and replenishment optimization to reduce stockouts and overstocks. Industrialization: automation of pipelines, continuous integration, and model monitoring.

Contexte & Environnement

Decathlon, a leader in retail and e-commerce, faced major challenges in supply chain forecasting and inventory optimization. The complexity of multi-warehouse and multi-channel supply chains, combined with dynamic consumer behaviors and strong seasonality, required advanced predictive models.

Team

1 Project Manager / 4 Data Scientists / 2 Data Analysts / 1 ML Engineer

Environment

Databricks on AWS S3 with Airflow orchestration

Objectifs Cles

1RNN and LSTM networks for complex temporal dynamics capture with multi-scale forecasting
2Probabilistic forecasting with distributions, quantiles, and confidence intervals
3-40% stockouts and -30% overstock reduction through optimization
4+25% forecast accuracy improvement (92.5% accuracy, MAPE 7.8%)
5Complete pipeline automation with incremental learning architecture

Technologies & Infrastructure

PythonPySparkscikit-learnTensorFlowFastAPIStreamlitPoetryDatabricksAWS S3AirflowDelta LakeGitHub ActionsDockerMLflowTableau

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