Houssem Yousfi

At Retsci-Cognira, I migrated legacy architecture to Databricks and designed Delta Lake pipelines and batch jobs that improved data reliability and reduced infrastructure costs. I also developed a batch processing framework that brought processing time from several hours to under 10 minutes.

I built forecasting and retail analytics tools, including a Scala sensitivity analysis engine and a PySpark Forecast Health Check with anomaly detection. During my internship at Retsci-Cognira, I developed demand forecasting models and improved forecasting accuracy by 74% through model optimization, hyperparameter tuning, and cross-validation.