About Rayane
French
Native or bilingual
Experience
- SNCFData EngineerTRANSPORTATIONJune 2025 - Today (1 year and 2 months)Lyon, France• - Implementation of the medallion architecture• - Implementation of Unity Catalog• - Cluster cost optimization• - Provision of detailed reports on the IT infrastructure status (printers, PCs, virtual machines, etc.).• - Monitoring, analysis, and synthesis of park-related data to optimize maintenance and asset management.• - Automation of data collection and processing to provide reliable and up-to-date dashboards.• - Optimization of scheduling, reducing costs and processing times by 4 hours.Migration of an On-Premise architecture to Cloud:• - Migration of SSIS flows to Azure Data Factory (ADF)• - Development of pipelines in Azure Data Factory, depositing data in Parquet format in Azure Blob Storage.• - Implementation of a medallion Delta Lake architecture (Bronze, Silver, Gold, Platinum) for data management and transformation.• - Development of Databricks Notebooks to load and transform data between the different layers of the Datalake.• - Monitoring of double RUNs (parallel executions) pending the decommissioning of the old On-Premise architecture.• - Creation of reports on Power BI• - Development of SSIS flows with CDATA connectors (API)• - POC of existing uses on Microsoft Fabric and DatabricksTechnical Stack: SQL Server, SSIS, Power BI, Databricks, Azure Data Factory (ADF), Azure Blob Storage, Parquet, CDATA Connectors, Python, Azure.
- CegidData/BI EngineerSOFTWARE PUBLISHINGOctober 2023 - June 2025 (1 year and 8 months)Lyon, FranceMigration of an On-Premise architecture to Cloud:- Migration of SSIS flows to Azure Data Factory (ADF)- Development of pipelines in Azure Data Factory, depositing data in Parquet format in Azure Blob Storage.- Implementation of a medallion Delta Lake architecture (Bronze, Silver, Gold, Platinum) for data management and transformation.- Development of Databricks Notebooks to load and transform data between the different layers of the Datalake.- Monitoring of double RUNs (parallel executions) pending the decommissioning of the old On-Premise architecture.- Creation of reports on Power BI- Development of SSIS flows with CDATA connectors (API)- POC of existing uses on Microsoft Fabric and DatabricksTechnical Stack: SQL Server, SSIS, Power BI, Databricks, Azure Data Factory (ADF), Azure Blob Storage, Parquet, CDATA Connectors, Python, Azure.
- OrangeData/BI EngineerTECHSeptember 2022 - September 2023 (1 year)Lyon, France• • Coaching the team to improve their skills on the MSBI suite• • Development of a system architecture (active/active) based on GTM and Load Balancing to host the Power BI report, allowing access for 5000 users. This solution was designed to anticipate any potential failure.• • Design of a Power BI Dashboard providing an overview of different communication parks, such as mobile, voice, and data, enabling analysis of consumption, billing, revenue, and park details.• • Design of a monitoring dashboard to track report usage.• • Design of tabular cubes and development of reports in Power BI.• • Integration of ODBC connection to import data from HIVE via SSIS.• • Development and automation of data loading flows (SSIS)• • Optimization of SQL processes and existing data loading flows.• • Incremental data integration with automated partition management on SQL Server.• • Optimization of cube processing (incremental) and automated partition management.• • Gathering business requirements.• • Testing/Production deployment.
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Education
- Master 2 (M2): Technical Architect in Computer Science, Computer EngineeringINSTA2022Master 2 (M2) : Architecte technique en informatique, Ingénierie informatique