Freelancer profile translated to English.
Back to original languageAbout William
I help you streamline and automate tasks around data processing and analysis.
The goal: save time, reduce overly laborious and manual aspects, become more agile, while maintaining control over the quality of what you produce.
Drawing on over 15 years of data analysis and studies, I combine:
- The creative agility of data science and AI.
- The structured rigor of studies and statistics.
- The pedagogy and depth of insights that come with experience.
What I offer:
1️⃣ Productivity & AI
Creation of workflows and AI agents for automation, particularly around analysis and reporting. From pure rules-based code to LLM-assisted agents. Examples in the survey universe:
- Human-in-the-loop workflow for coding open-ended survey responses (LLM inside).
- Tool for "mass" cross-tabulations with appropriate statistical tests (pure code and deterministic).
- Workflow for segmentation and persona creation (LLM inside).
- Automated production of 300 personalized PDF reports from survey results (pure code and deterministic).
- Interview transcription tool with structured CSV output.
2️⃣ Data Science / Data Marketing Analytics / Machine Learning
Using modeling and machine learning to...
- Optimize your pricing and predict demand.
- Align your CRM with your digital audiences.
- Model Churn (attrition) and customer scoring
3️⃣ Data Analysis - Insights
- Exploration of your data and studies to produce insights.
- Analysis of your survey data.
- Advanced segmentation, clustering, and data-driven persona creation.
- Price testing, trade-offs.
- Visualizations and charting.
French
Native or bilingual
English
Fluent
Dutch
Native or bilingual
German
Conversational
Can work on-site
Paris (up to 50km), Lyon (up to 50km), Annecy (up to 50km)
Experience
- FreelanceMarket Research Officer / Analyst / Data ScientistFebruary 2009 - Today (17 years and 6 months)Marketing research officer / data analysis with a focus on data science.I have completed over 160 projects for VSEs, SMEs, large companies, start-ups, and intermediary bodies across various sectors: consumer goods, tourism & leisure, retail, training.Marketing studies & surveys:- Analysis and execution of Usage and Attitude surveys- Concept testing / validation for start-ups / new products- Price testing, trade-offs, and willingness to pay.Data Science and data analysis:- Modeling and predictive analysis,- Automation and AI workflows,- Web scrapingSome references: Groupe Pierre Fabre (dermo-cosmetics), Melvita, Tonies, Commune de Chamonix, Compagnie des Alpes, Atout France, ABTA (Association of British Travel Agents), Auvergne Rhône Alpes Tourisme, Cannondale, Décathlon, Vinci.
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Education
- Data Science - RNCP 36129 - Block 3Datascientest - Certification Mines Paris – PSL Executive Education2024Data science : Python, Data Visualisation, SQL, Machine Learning, Deep Learning, NLP
- MasterESC Chambéry2008Master 2 école de commerce
Certifications
- Python, SQL, Bash (Short Courses)Codecademy2024
- Data Analysis (Short Course)Addinsoft2014