Freelancer profile translated to English.
Back to original languageAbout Méryl
I design and optimize ETL pipelines, structure and clean data, and implement reliable solutions to transform raw data into actionable insights.
🔹 Key Skills:
- Python (Pandas, NumPy)
- SQL (PostgreSQL, MySQL)
- Big Data: Spark, Hadoop
- ETL & Pipelines: Airflow, Talend
- Data Visualization: Power BI, Tableau
- Automation and reporting
Available for remote or on-site missions in France. Also open to technical or analytical missions close to data engineering.
French
Native or bilingual
Can work on-site
Paris (up to 50km), Strasbourg (up to 10km), Lyon (up to 10km), Marseille (up to 10km)
Experience
- WashManData EngineerApril 2024 - September 2025 (1 year and 5 months)Paris, France
- Analysis of business needs and writing User Stories for a dry-cleaning management application.
- Design of functional specifications and backend architecture (FastAPI).
- Database modeling (PostgreSQL) and structuring of key entities.
- Definition of test scenarios and automation with Pytest.
- Containerization of the project with Docker for simple and reproducible deployment.
- CAPGEMINIData EngineerFebruary 2023 - September 2023 (7 months)Rennes, France
- Development of a marketing optimization and intelligent document management solution.
- Creation of Python scripts to automatically detect advertising spaces and insert ads.
- Development of an interactive web application with Streamlit, connected to a MongoDB database for document management and consultation.
- Use of Git and GitHub for versioning, tracking changes, and collaboration.
- Participation in testing, debugging, and continuous improvement of features to ensure performance and reliability.
- GIE SIMAData Engineer BISeptember 2021 - August 2022 (11 months)Nancy, France
- Participation in the Data Warehouse migration: extraction, transformation, and quality control of data from multiple sources to ensure their consistency and reliability.
- Redesign, optimization, and porting of BusinessObjects queries to Tableau Server, improving report performance and key indicator accuracy.
- Development and maintenance of dynamic dashboards on Tableau, integrating relevant KPIs for operational and strategic management.
- Analysis of back-office processes and automation of reporting and repetitive tasks with Python, contributing to increased operational efficiency and data availability.
- Evolutions carried out in a technical environment including Python, SQL, Tableau, and Talend.
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Education
- Program Analyst, Web Developmentib Cegos2024Analyste Programmeur, Développement web
- Master, Econometrics, Big Data and StatisticsAix-Marseille Université2022Master, Econométrie, Big Data et Statistique
Certifications
- Microsoft Certified: Azure FundamentalsMicrosoft2023