Freelancer profile translated to English.
Back to original languageAbout Tom
💻 Data Engineer | Azure | Python / SQL | DBT | Pipeline Automation
With over 3 years of experience in data engineering, I help companies design, optimize, and automate their data flows.
Specializing in the Azure Cloud ecosystem, I am involved in all stages of a data project: integration of new sources, transformation and validation of data, securing environments, production deployment, and performance optimization.
🔹What I offer:
- Development and maintenance of ETL pipelines (Azure Data Factory, SQL, Python, DBT)
- Integration and transformation of multi-source data
- Optimization and migration of Cloud infrastructures (Azure, Terraform, YAML)
- Implementation of CI/CD processes and DevOps best practices
- Creation of APIs and automation of data workflows
- Close collaboration with business teams to align data with business needs
🌍 Based in Paris, I am available for remote or in-person assignments.
**My goal**: to help companies leverage their data by making their flows more reliable, performant, and scalable.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 10km)
Experience
- AltenData Scientist EngineerENVIRONMENTALFebruary 2022 - July 2022 (5 months)Paris, France
- Exploratory data analysis of raw data, simulating water contamination by chlorine and water leaks
- Transformation ontime seriesusingPython
- Research and testing of variousstatistical modelsusing theScikitlearnlibrary with Python
- Model qualification based on specificmetrics(F-Score, precision, ...)
- Benchmark ofclustering(KMeans, ...),classification(SGDClassifier, KNeighborsClassifier, Random Forest Classifier, ...), andregression(LinearRegression, Random Forest Regressor, ...) models
- Weekly presentation of results to other team members
- Participation in the development of the Web platform inVue.js
- Integration of statistical models into the Web platform
- Presentation of the project to new joiners (consultants between contracts)
- Creation of documentation listing all performances of each tested model
- GS1 FranceData Engineer - Permanent ContractRETAIL (SMALL BUSINESS)June 2024 - October 2025 (1 year and 4 months)Paris, France
- Internal collaboration to capture and technically and functionally specify requirements
- Connection to external and internal company data sources (API, CRM, flat files, SFTP, ...) usingAzure FunctionsinPythonto feed theDatalake
- Creation and supervision of theAzure Data Factory orchestratorto execute specific tasks based on requirements, in the different existing environments (dev and prod)
- Supervision and incident resolution inproduction
- Testing of flows before industrialization
- Responsible for production deployments
- Development of data transformations in **Python**, adapted to specific business processes
- Guarantee of code maintainability and quality withunit tests
- Creation ofdeployment pipelines in YAMLto ensure the proper functioning of continuous deployment
- Management ofInfrastructure as CodewithBicep
- Creation of aPower BI reportconnecting to the Datalake to visualize potential data inconsistencies, previously defined
- Collaboration with service providers to monitor thequality of dataprovided
- Management of thePostgreSQLdatabase, the data source for Power BI reports visible by the company, ensuring good data quality to provide sales teams withdecision support
- Contribution to improving communication with other internal technical teams by fully presenting theData product
- Improvement of the existing versioning system (**Git**)
- Creation of documentation
- SIKIAData Engineer - Permanent ContractFASHION AND COSMETICSOctober 2022 - April 2024 (1 year and 6 months)Paris, FranceAs a Data Engineer, I was responsible for developing and optimizing data flows between the internal database and various client marketplaces and platforms.
- Development ofTSQLflows to verify data quality and integrate it into Zadig's database from various sources (SFTP, FTP, Blob Storage, ...)
- Creation of activities with theAzure Data Factoryorchestrator to copy data from one database to another
- Migration of certain Azure Data Factory activities to aC#executable, usable by other team members
*Creation of an APIin C# to allow a mobile application to use certain tables and views from the Zadig database- Participation inCode Reviewsto get Pull Requests created by the team validated in the various environments
- Responsible forproduction deploymentsand incident supervision
- Creation of a flow to automatically retrieve messages from Pull Requests validated in production, to notify the company of available business needs
- Management ofInfrastructure as Code with Terraform
- Optimization of existing TSQL code and implementation of "best practices" applicable by the entire team
- Database security by restricting access to certain tables based on the user
- Maintenance ofCI/CD pipelines
- Creation of documentation
- Leading internal and external meetings (Microsoft incidents)
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Education
- Engineering Degree - Master's GradeESIEA2022
- Bachelor's Degree in Mathematics and Computer ScienceUniversité Paris Descartes2019Licence Mathématiques et Informatique