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Description

Data Engineer · 7 years of experience

From raw data to action: pipelines, data warehouse, BI and custom business applications.

Equally comfortable working solo in an SME or embedded in a product squad.

Available for freelance work starting July 2026.

Languages

French
Native or bilingual
English
Fluent
Spanish
Basic

Workplace preferences

Can work on-site

Guingamp (up to 50km)

Groupe MAT! x YNDA
Data Engineer — Beverage Distribution · 2 groups · 20 companies · 40 depots · +15k SKUs
LOGISTICS AND SUPPLY CHAIN
January 2024 - Today (2 years and 7 months)
Guingamp, France
Data Engineering
- Design and development of the group's Data Warehouse (Medallion architecture, full open source: DuckDB, PostgreSQL)
- Implementation of data pipelines (Python, Airflow) and BI (Metabase), hosted on Ubuntu VPS
- Co-design and development of an internal CRM (Claude Code): BI, CRM, prospecting (Sirene, Bodacc, Google Places APIs) and business application management

Data & BI
- Creation of dashboards, reports, and alerts in QlikView / Qlik Sense (logistics, finance, CSR, etc.)
- Automation of Data Quality checks (ERP, CRM, API) with historical logging and alerting

Business Automation
# Python Scripts:

- Commercial segmentation application and client mapping (FastAPI, PostgreSQL, HTML/JS)
- Multi-catalog item matching via NLP embeddings, similarity scoring, and Excel export (Streamlit)
- Generation of Individual Social Bulletins (Streamlit)
- Automatic extraction of data from PDF invoices and Excel export (accounting integration, PyInstaller)
- Processing of promotional refactoring Excels with QlikView export (Tkinter)
- Email alert system for client/supplier IBAN modifications

# Low-code (Power Platform):

- PowerApps applications + Power Automate automations + SharePoint storage + Power BI reporting
- Tool for creating and tracking items (50 users, 35 depots)
- Defective product declaration application (20 users, 15 depots)

IS & Ancillary Projects
- Integration of 10 companies into the ERP and BI
- Organization of a datathon with the BUT Data Science of Vannes in partnership with Orange Business
Python Qlik Airflow PostgreSQL Datawarehouse
Orange Business | Groupe ROCHER
Data Engineer
FASHION AND COSMETICS
January 2021 - January 2024 (3 years)
Nantes, France
Data pipelines on GCP (Python, Airflow, Dataflow), integration of sales / ERP / CRM (SFMC), Data Warehouse BigQuery.

Feeding Tableau (Data Analysts), analytical tables for Data Scientists, and marketing activation via Email / Push / SMS through SFMC.

Scope: Yves Rocher World & Dr Pierre Ricaud France.
Google Cloud Platform (GCP) Python Airflow Big Query Dataflow
Business & Decision | Groupe BEAUMANOIR
Data Engineer – Big Data
FASHION AND COSMETICS
January 2020 - January 2021 (1 year)
Nantes, France
Maintenance and evolution of the Big Data CRM platform:
- Ingestion & transformation of marketing and sales data
- Hive modeling in a Hadoop environment
- Monitoring & optimization of operations via QlikView dashboards
Cloudera Hadoop Talend Big Data Qlik Adobe Campaign