Freelancer profile translated to English.
Back to original languageAbout Staël
I help D2C, retail, and luxury brands to make their data reliable, understand their performance, and automate their processes to gain speed, accuracy, and profitability.
For over 10 years, I have been involved in the entire data value chain:
- Tracking & analytics (GA4, GTM, server-side, Meta/Google Ads)
- Reporting & dashboards (Looker Studio, Metabase, Tableau, Power BI)
- Centralization & modeling (dbt, Snowflake, BigQuery, DuckDB)
- Workflow automation (Make, Zapier)
- Ad hoc analysis, forecasting, attribution, cohort, LTV
My approach is **pragmatic**, **business-oriented**, and **focused on impact**.
I transform your raw data into actionable indicators, accelerate your decision-making, and eliminate repetitive tasks through robust workflows.
Examples of results achieved:
- Reliable marketing reporting across 20+ markets (luxury)
- Complete automation of sell-out tracking (international retail)
- Reduction of 8 hours/week of manual tasks thanks to Make/Zapier
- Implementation of a comprehensive tracking plan for complex e-commerce funnels
Deliverables: ready-to-use dashboards, versioned dbt models, automated pipelines, clear data architecture, documentation + team training.
Areas: E-commerce, D2C, SaaS, Luxury, Retail, Finance.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km), Rennes (up to 50km), Toulouse (up to 50km), Bordeaux (up to 50km), Lyon (up to 50km)
Experience
- CartierAnalytics Engineer - Paid MediaLUXURY GOODSAugust 2025 - Today (10 months)Paris, FranceContextSupport the Paid Media team (social, search, display) in making marketing data reliable and optimizing advertising investments.MissionStructure marketing data, automate performance analysis, and provide a unified view of results to more effectively manage budgets.Actions
- Complete overhaul of Paid Media tracking (Meta, Google, Display)
- Building automated pipelines to centralize and clean data
- Implementation of unified dashboards: acquisition, costs, ROAS, attribution
- Recurring analysis of opportunities: campaigns, audiences, markets, devices
- Implementation of quality controls and data alerting for Paid Media
Results- Comprehensive view of paid performance across all levers
- Reduction in reading errors and better multi-source attribution
- NEBULEUSELead Data Strategist & Analytics EngineerLUXURY GOODSSeptember 2025 - September 2025Paris, FranceContextA rapidly growing brand facing a lack of performance visibility, operational overload, and unusable data.MissionStructure data, improve business steering, and lay the foundation for an effective data culture.Actions
- Complete diagnosis of the existing data stack and reporting
- Redesign of e-commerce & CRM dashboards
- Implementation of unified KPIs (acquisition, conversion, retention)
- Centralization of sources (Shopify, Ads, CRM) into a coherent structure
- Automation of repetitive tasks to relieve teams
Results- Reliable view of e-commerce performance
- Reduction in operational burden through automation
- Alignment of teams on a common KPI language
- EX NIHILO - Maison de parfum françaiseLead Data Strategist & Analytics EngineerLUXURY GOODSMay 2025 - August 2025 (3 months)Paris, FranceContextA premium perfume house with international expansion, requiring a robust, reliable, and scalable Sell-Out database.MissionCompletely overhaul Sell-Out monitoring to achieve global, harmonized, and automated tracking of distributor sales.Actions
- Complete reconstruction of the SQL database (sales, distributors, POS)
- Migration + reconciliation of historical data (source DB + Excel files + POS)
- Implementation of automated monthly ingestion pipelines
- Modeling of harmonized tables for international analysis
- Creation of consolidated Sell-Out dashboards (market, point of sale, product)
- Documentation + team training for autonomous adoption
Results- Reliable, scalable, and clear Sell-Out database
- Complete automation of monthly import
- Unified international reporting usable by all departments
- Team independence from the CTO through documentation
Reviews
Cartier
Data Analyst & optimisation CRM - Antoine Cartier
Reviewed on 3/19/2026
Staël has truly changed our way of steering the business. Before his intervention, our data was scattered and unreliable, making our decision-making complicated. He brought order, made our CRM indicators reliable, and built dashboards that we use daily to guide our marketing and commercial choices. He also automated many manual tasks, which saved us precious time. What we particularly appreciate about Staël is his ability to understand our challenges and propose solutions that have a concrete impact on our strategy. I recommend him without hesitation!
A
Alexandre
Lucide
Reviewed on 9/2/2025
I recommend Staël for any Data mission. Clear communication, clean deliverables, deadlines met.
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Education
- Master of Science in ManagementSKEMA Business School2017Master of Science (MSc) Digital Business Data Analysis & Management
- Master 1, Grande Ecole Program, Msc Digital BusinessSKEMA Business School2017Master 1, Programme Grande Ecole, Msc Digital business