Freelancer profile translated to English.
Back to original languageAbout Hamdi
I help companies deliver, optimize, and build robust and scalable data products on Azure, AWS cloud environments, with strong expertise on Databricks and Snowflake data platforms and ETLs such as Azure Data Factory, Informatica and Talend.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- Danone [Global]Tech Lead Data EngineerAGRICULTUREFebruary 2022 - Today (4 years and 4 months)FranceCONTEXT:Migration of the CBI (Corporate Business Intelligence) platform from an on-premise solution to the Cloud and platform evolution.MISSION:
- Responsible for leading the data objects and pipelines inventory process.
- Lead the reverse engineering and traceback process to generate missing project documents, such as the data transformation document and the dataflow diagram.
- Lead the choice of the target architecture and the development of architecture documents such as high-level architecture,...
- Translate all legacy pipelines into cloud pipelines, starting with raw data ingestion using Azure Data Factory from SAP and external source systems to our ADLS.
- Develop Databricks notebooks in Python/Spark and SQL for SSOT integration and datamart generation on our Snowflake datastore.
- Responsible for upskilling junior engineers by supervising the application of Danone's best practices at all project stages.
- Lead the business needs maturation process.
- Responsible for the CI/CD process using Github.
- Danone [Global]Senior Data EngineerAGRICULTUREJune 2024 - August 2024 (2 months)FranceCONTEXT:POC of the Medallion architecture using Databricks delta tables to replace Informatica cloud andSnowflake on data warehouse flows.MISSION:
- Responsible for leading the development of the Databricks Medallion architecture and all project documents.
- Develop notebooks equivalent to Informatica Cloud flows using Databricks delta tables.
- Orchestrate Medallion pipelines to run in parallel with Informatica Cloud flows.
- Develop Event Hub tasks and Spark Streaming notebooks to ingest logs from Azure billing services.
- Create a Power BI dashboard comparing KPIs such as costs and execution time for the same warehousing use case between Informatica cloud/Snowflake flows and Databricks Delta Table flows.
- Danone [Global]Senior Data EngineerAGRICULTUREFebruary 2022 - January 2023 (11 months)FranceCONTEXT:Develop and maintain the lifecycle and procurement platform responsible for ingesting Danone's global data, providing DataMarts and dashboards related to the procurement process across all Danone systems (internal and partnerships).MISSION:
- Write technical documents for projects such as specification documents, high-level architecture, data flow diagrams, and data model documents…
- Lead the environment preparation process with Azure cloud engineers.
- Develop data ingestion pipelines from internal and external source systems using Azure Data Factory, SAP, and ADLS (Azure Datalake Storage).
- Prepare SSOT data from ingested raw data by developing Pyspark notebooks on Azure Databricks and Snowflake as a data store.
- Translate all business rules into data transformations for datamarts using pyspark notebooks on Databricks.
- Create a data dictionary to facilitate data mapping, as we were dealing with heterogeneous data from different partners worldwide.
- Prepare and lead unit testing, integration, and data quality processes.
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Education
- National Diploma in Computer EngineeringUniversity of Sciences2013Diplôme National d'ingénieur en Informatique
Certifications
- Databricks Data Engineer ProfessionalDatabricks2025
- SnowPro Core CertificationSnowflake2025