Freelancer profile translated to English.

Description

Data Analyst & Business Analyst with 8 years of experience in large accounts, immediately available.

I support organizations in leveraging their data: from modeling to the production of Power BI dashboards used daily by business teams. My positioning is twofold, technical and functional. I understand your business challenges before structuring the data solution.

Deliverables I work on:

End-to-end Power BI Dashboards (star schema modeling, advanced DAX, RLS, Power BI Service)

Functional analysis and business needs gathering (Business Analysis)

Data pipelines and data warehouse feeding (SQL, SSIS)

Migration of legacy reporting to Power BI cloud

What sets me apart today: I actively stay at the forefront of AI uses applied to data. In particular, I designed a RAG chatbot, an approach that allows querying a knowledge base in natural language. This AI dimension is a real asset for projects seeking to go beyond classic reporting.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Melun (up to 50km), Paris (up to 50km)

Upwork
Data Analyst & BI Consultant
E-COMMERCE
August 2024 - February 2026 (1 year and 6 months)
Minnesota, USA
Freelance Data Analyst Power BI, I help companies drive their business with clear, reliable, and directly actionable dashboards.

On Upwork, I worked with international clients (retail, e-commerce) on end-to-end missions: from connecting to data sources to producing the Power BI report.

What I concretely deliver:
• Interactive Power BI Dashboards with star modeling and custom DAX measures
• Data connection and transformation via Power Query and SQL
• KPI monitoring reports (Revenue, inventory, team performance, margins)
• Automation scripts and data cleaning
• AI model training
• Development of a RAG chatbot with a local LLM, to ensure data sovereignty, reduce compute costs, and provide contextualized answers from business documents. Design of the complete chain, from requirements gathering to source integration, semantic search, and generation of actionable answers for users.

Stack: Power BI · DAX · Power Query · SQL · Azure · GitHub · RAG · Local LLM · Generative AI · AI Chatbot · Embeddings · Vector Database · Python
Microsoft Power BI AI Chatbot Python SQL Data Analysis
Sopra Steria
Data Analyst & BI Consultant
DIGITAL AND IT
October 2017 - May 2024 (6 years and 7 months)
Paris, France
6 and a half years at Sopra Steria as a consultant then lead Data Analyst & BI, with assignments for major clients in insurance, banking, and supply chain.

What I did in the field:
• Design of end-to-end Power BI dashboards: star modeling, DAX measures, RLS security by user profile
• Business needs gathering, functional specifications, deliveries validated with client teams
• Evolution to a Power BI technical referent role — code review, best practices, support for other consultants
• Internal assignment: automation of HR processes via UI Path robots (account creation, recurring tasks)

Stack: Power BI · DAX · Power Query · SQL · SQL Server · UI Path
RPA SQL Microsoft Power BI Data Analysis DAX
Thales Digital Identity & Security
Power BI Developer & Data Support N3
DEFENSE AND MILITARY
July 2021 - July 2023 (2 years)
Gémenos, France
At Thales DIS, I had two roles: Power BI developer and N3 data support for international teams.

On the Power BI side:
• Migration of legacy reports to Power BI Service as part of a cloud transition — redesign of data models and complete redevelopment
• Creation of new reports for operational activities and inventory monitoring
• Facilitation of needs gathering workshops, functional validation, production deployment

On the N3 support side:
• Handling complex data incidents escalated from N1/N2 teams in Spain and Poland
• Training and skill development for foreign support teams on Thales-specific data issues

Stack: Power BI · Power BI Service · DAX · SQL · Azure Cloud · VBA
Training Business Analyst Data Analysis Microsoft Power BI English