Freelancer profile translated to English.

Description

🎯 Freelance Data Analyst | Power BI · Python · SQL

With 3 years of experience in consulting firms (Wavestone), I have supported large organizations in leveraging their data: from the design of performance indicators to the automation of complex reporting, including training for business and technical teams.

My assignments have led me to work in varied and demanding contexts — ERP transformation in the European chemical industry, operational management of a RATP subsidiary, strategic Sustainability reporting for an international hotel group.

🔍 My strengths:

✔️ Design of tailor-made Power BI dashboards (DAX, Power Query, multi-source)

✔️ Data analysis and validation (Python, SQL, quality control)

✔️ Scoping of business needs and workshop facilitation

✔️ Interface between technical and business teams for directly actionable deliverables

✔️ Power BI training for employees and clients (100+ people trained)

💡 My approach combines analytical rigor with a focus on business results: I don't just deliver dashboards, I ensure they address real issues and are actually used.

📩 Available for freelance assignments — do not hesitate to contact me!

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 50km)

RATP CAP IDF
Data Analyst - Performance Management
TRANSPORTATION
January 2025 - July 2025 (6 months)
Paris, France
Stack: Power BI, Excel, Power Query
Automation of multi-source reporting to improve the reliability and speed of indicator production
Redesign and standardization of operational KPIs according to client requirements
Audit and quality control of data with analysis of reporting discrepancies
Production of monthly reports for several business units (RDS, TRAM, MRF)
Support for transformation in a context of opening to competition
Microsoft Power BI Microsoft Excel
Air Liquide
Data Analyst - ERP Transformation Program
RAW MATERIALS INDUSTRY
January 2024 - December 2025 (1 year and 11 months)
Paris, France
Stack: Microsoft Power BI, DAX, SQL, Python, SageMaker
Development of data quality control algorithms on SageMaker
Creation of reusable and documented Python/SQL scripts
Design of Power BI dashboards and DAX measures aligned with business needs
Development of multi-source reporting for tracking ERP program benefits
Monitoring of estimated savings of €40M
Facilitation of business workshops and scoping of functional requirements
Interface between technical and business teams to translate technical constraints into actionable KPIs
Microsoft Power BI Python SQL Microsoft Excel
Accor
Data Analyst - Sustainability Performance Management
HOSPITALITY
June 2023 - December 2023 (6 months)
Paris, France
Stack: Tableau, Excel, Python
Definition and monitoring of group-wide sustainability KPIs
Design of strategic dashboards and reports from hotel sustainability data
Structuring of reporting processes and standards for the Sustainability department
Support for business teams and hotels in data exploitation and validation
Tableau Microsoft Excel SQL