Freelancer profile translated to English.
Back to original languageAbout Valentin
After 12 years of driving marketing performance through data and a Data Science & AI course at Le Wagon, I am enriching my missions with a modeling and ML layer. I work with startups, fintechs, and large corporations on analytics, paid acquisition, predictive scoring, and attribution. Objective: to move from dashboards to decision-making.
English
Fluent
French
Native or bilingual
Spanish
Conversational
Can work on-site
Paris (up to 20km)
Experience
- Le WagonTeaching AssistantApril 2026 - Today (4 months)Paris, FranceAssisting students in the Le Wagon Data Science & AI bootcamp and corporate clients with Data Science, AI, and Agent-related topics.
- FreelanceMarketing Performance & Analytics ConsultantJune 2018 - December 2025 (7 years and 6 months)Paris, FranceData / Analytics:– Configuration of analytics solutions (Google Analytics / Eulerian / Matomo / Amplitude)– Creation of automated dashboards– Integration of pixels & cookie consent management solutions.Digital Acquisition:– Definition and implementation of marketing acquisition strategies– Management of Google Ads and Facebook Ads Campaigns– Audit of Google Ads accounts and Google Ads campaign restructuring
- FreelanceMarketing Analytics & Data Science ConsultantJanuary 2026 - Today (7 months)Paris, FranceData Science & Modeling:• Predictive scoring: propensity to convert, churn, customer value (Python, scikit-learn)• Multi-touch attribution and incrementality measurement (lift studies, geo-experiments, matched market analyses)• Media mix modeling (MMM) and cross-channel investment analyses• Forecasting of budgets, volumes, and revenues for business planning• Integration of LLMs and AI agents into data & marketing workflows• Advanced exploratory analyses in Python to support strategic decisionsAnalytics & Measurement• GA4 / GTM tracking (client & server-side), Consent Mode v2• Analytics migrations (UA → GA4, Piano, Eulerian, Amplitude)• Advanced advertising tracking (Meta Conversions API, Google Enhanced Conversions)• BigQuery modeling and automated dashboards (Looker Studio, PowerBI)Performance Marketing• Audits and restructuring of Google Ads and Meta Ads accounts• Multi-channel acquisition strategy (Search, Shopping, PMax, Paid Social)• Experiment design: A/B tests, geo-tests, incrementality measurement• Cross-channel budget allocation and scaling scenarios
Reviews
AD
Account deleted
Reviewed on 4/13/2021
It was a pleasure working with Valentin! He was available and patient, very pedagogical, and knowledgeable in his field! I would work with him again without hesitation.
Alexandre
Seventic
Reviewed on 10/26/2020
As usual, the mission went very well. Thank you Valentin for your responsiveness and professionalism.
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Education
- Data Science & AI - BootcampLe Wagon20269 semaines de bootcamp intensif en data science, machine learning et deep learning (Python, scikit-learn, TensorFlow, GCP)
- Master International Marketing & Business DevelopmentSKEMA2014
Certifications
- Designer developer in artificial intelligence and big data analysisLe Wagon2026