Walid El Khoukh

— Led the migration of 50+ pipelines from an on-premise datalake (Airflow, MinIO) to AWS / Databricks, with a refactoring of the architecture into Medallion (Delta Lake). — Designed batch and incremental ingestion flows via Fivetran, and developed Spark transformations. — Implemented data access governance via Unity Catalog and RLS. — Results: 50% reduction in average processing runtime and 25% in platform costs. Environment: AWS, Databricks, PySpark, Spark SQL, Delta Live Tables, Fivetran

International Finance Analytics Program — Project leadership on the international finance reporting unification program. — Developed Apache Airflow DAGs for the ingestion of financial data and exchange rates via Kyriba API, with calculation and validation of Group KPIs, using a Medallion architecture. — Designed Power BI dashboards with access governance by department and country (RLS). — Supervised 2 interns successively: code review, task allocation, mentoring, and evaluation. — Results: reduction in closing cycle time, coverage of 18 countries / 12 currencies. Environment: Apache Airflow, Apache Spark, S3, Delta Lake, Kyriba API, Power BI

Pilot Project — Replaced Excel-based piloting with a centralized data solution for monitoring the vehicle fleet (fuel, claims, vehicle park). — Designed an ELT pipeline processing 10M+ lines/month: cleaning, historization, and production of validated tables. — Developed 3 Power BI dashboards (30 visuals) for operational monitoring. — Results: data-driven management of levers, reduction of average claims cost per vehicle by 9%. Environment: Apache Airflow, Spark, S3, Delta Lake, Oracle, Power BI