Freelancer profile translated to English.
Back to original languageAbout David-Olivier
At Prisma Media (Vivendi), I led the global migration to GA4 & BigQuery covering 12 websites and 30 apps, designing tagging plans, event schemas, parameter architectures, and GDPR flows. As a bridge between BI, marketing, and product, I ensured data quality and strategic alignment.
Expertise:
• GA4 / PIANO / AMPLITUDE/ GTM / sGTM — event & parameter schemas, scalable naming conventions, debugging, governance
• CRO — funnel analysis, KPI frameworks (conversion, retention, LTV), A/B testing roadmaps
• Power BI — DAX, M queries, semantic models, RLS, governed datasets
• Looker (LookML) — semantic modeling, KPI governance
• BigQuery (GCP) — SQL modeling, partitioning, optimization, automation
• Data Governance & Quality — reliability, compliance, adoption
• Data Visualization — Power BI, Looker, Tableau, Looker Studio
End-to-end process
• Extraction — connecting to data (GA4, CRM, e-commerce, APIs).
• Transformation — cleaning via SQL, dbt, Power Query.
• Modeling — star schema, snowflake, semantic layers.
• Visualization — BI dashboards for teams and executives.
• Optimization — funnels, CRO insights, experimentation.
• Governance — scalable GA4 schemas, consistent KPIs, enhanced quality.
I thrive where digital analytics meets BI and CRO: designing sustainable GA4 architectures while ensuring BI and optimization deliver clarity, governance, and measurable business impact.
English
Fluent
French
Native or bilingual
Can work on-site
Paris (up to 50km), Paris (up to 50km)
Experience
- Prisma MediaProduct Owner Web AnalyticsPRESS AND MEDIAJune 2021 - October 2025 (4 years and 3 months)Gennevilliers, FranceAnalytics Product OwnerLeads the implementation of GA UA and GA4/GTM across 12 websites and 30 mobile applications, covering content and e-commerce platforms.Drives digital transformation initiatives by aligning technological upgrades with strategic business objectives.Works with key stakeholders to define the vision and roadmap for GDPR-compliant web analytics solutions.Ensures alignment of project outcomes with organizational goals and compliance standards.Structures and defines client requirements, translating complex needs into concrete operational objectives.Leads cross-functional teams in strategic planning and execution of project deliverables.Designs and manages the tracking plan architecture for various websites and mobile applications.Oversees the deployment of analytics tools to enhance user engagement and optimize operational efficiency.Collaborates with client IT and development teams to establish and refine tracking requirements.Ensures precise implementation of technical specifications according to project standards.Monitors tracking accuracy and analytical data quality.Manages the setup of data visualization tools to facilitate decision-making and improve reporting capabilities.Analytics Tools: GA UA, GA4, Wysistat, PianoImplementation Tools: GTM / hard codingData: BigQueryDashboards: Looker StudioLanguages: SQL, JavaScript, PythonManaged Brands:harpersbazaar.frfemmeactuelle.frcuisineactuelle.frgala.frvoici.frgeo.frcapital.frhbrfrance.fr (Harvard Business Review France)caminteresse.frneonmag.frprogramme-tv.net (Télé Loisirs)programme.tv (Télé 2 semaines)cesoir.tv (TV Grandes Chaînes)Service provider for Extia
- dentapass.comWeb Analytics ConsultantE-COMMERCEJanuary 2020 - June 2021 (1 year and 5 months)Paris, FranceConversion Funnel DefinitionKPI DefinitionGoogle Analytics 4 SetupGoogle Tag Manager SetupGoogle Analytics Tagging PlanGoogle Tag Manager Tagging Plan
- Stylee AppWeb Analytics Consultant / Data VisualizationE-COMMERCEDecember 2020 - December 2020 (1 month)Paris, France- Creation of Data Studio dashboards for the Stylee application, under Firebase Analytics and BigQuery environment- Definition of KPIs and conversion funnel.- Data processing- SQL / BigQuery Queries- Crash detection / UX optimization
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Education
- Digital Marketing CertificateColumbia Business School, Emeritus2019This course is based on Professor David Rogers’s course on Digital Marketing Strategies taught to executives that come to Columbia Business School from all over the world. This program focuses on how marketers can reach digitally savvy audiences, build deep customer relationships, and influence the digital path to purchase. Key activities : Customer Advocacy and Customer Network Relationship Between Marketers and Customers Search Marketing Simulation Launch Impact of Digital Technologies Access Strategy Engage Strategy Content Marketing Customize Strategy Personalized Digital Services Connect Strategy Using Social Media Collaborate Strategy Social Media Simulation Reputation Warfare Metrics of Measurement
- SEO Expert TrainingESKIMOZ Academy2019Executive education courses in Search Engine Optimization (SEO)
Certifications
- DIGITAL MARKETING: CUSTOMER ENGAGEMENT, SOCIAL MEDIA, PLANNING & ANALYTICS CertificateEmeritus - Columbia Business School2019
- English Certificate - C2 Proficient CEFR LevelEF Standard English Test (EF SET)2019