Freelancer profile translated to English.
Back to original languageAbout Pauline
Your Meta and Google Ads campaigns are losing 20 to 40% of their conversions without you knowing. iOS 14, third-party cookies, AdBlock: your pixel now only sees part of the reality, and your algorithms are optimizing blindly.
I am rebuilding your server-side measurement to recover this signal, make your media decisions reliable, and regain control of your CAC.
A recent case
Cosmetics DNVB Shopify, €2.4M in revenue. Meta EMQ at 4/10, a 38% gap between Shopify and Business Manager conversions.
In 9 days: GTM Server-Side on Stape (first-party subdomain), Meta CAPI enriched with backend data (value, user ID, hashed email), GA4 refactoring, Looker Studio CAC/ROAS dashboard.
Result: +34% of Meta conversions reported, EMQ at 8/10, and identified 40% over-investment in Google Ads.
Expertise
Server-side: GTM SS on Google Cloud or Stape, custom subdomain, SSL, architecture optimized for performance.
Conversion APIs: Meta CAPI, Google Ads Enhanced Conversions, TikTok and Pinterest CAPI, with systematic server-side enrichment (event_id deduplication, SHA256, backend value).
GA4 and BigQuery: tailor-made tagging plan, BigQuery export, SQL for advanced reporting and LTV cohorts.
Consent Mode V2: Advanced Mode with Axeptio or Didomi, real GDPR compliance without sacrificing signal.
Looker Studio: CAC, LTV, ROAS dashboards by channel, readable by non-tech teams.
Method
Free 30-min flash audit to define needs and identify signal leaks. If the mission makes sense, a fixed lump-sum proposal, with no hourly billing. Deployment in 5 to 10 business days, with documentation and training for your team.
To get started
Send me a message with your CMS, your monthly volumes, and your main ad platforms. I'll get back to you within 24 hours with an initial assessment and, if it's a good fit, a proposal for a flash audit.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- saasData Analyst Freelance — B2B SaaS (lead generation) - Data StructuringJuly 2025 - February 2026 (7 months)Early-stage post-seed SaaS, need to reliable lead tracking to manage acquisition.Complete refactoring of the dataLayer to track lead → demo → SQL funnelGA4 + GTM setup with custom events (form_submit, demo_booked, qualified_lead)GA4 ↔ HubSpot connection for lead-to-customer attributionLooker Studio dashboard for the growth team (CAC by channel, SQL rate, pipeline velocity)Complete tracking documentation for the internal team
- marketingData Analyst Freelance — Digital Marketing AgencyNovember 2024 - May 2025 (6 months)Subcontracting tracking & reporting for 4 e-commerce clients of the agency (fashion, decor, beauty).Web GTM setup and maintenance on 4 sites (Shopify, WooCommerce)Server-side tracking implementation for 2 priority clientsCreation of white-label Looker Studio dashboards for monthly client reportingRecurring monthly reporting: acquisition performance, attribution, budget recommendationsOccasional Consent Mode v2 audits + fixing broken GA4 tracking
- suits shirtData Analyst / Tracking Specialist Freelance — Fashion E-commerceJanuary 2023 - September 2024 (1 year and 8 months)Initial tracking audit: 41% of Meta conversions not reportedDeployment of GTM Server via Stape.io with first-party subdomainMeta CAPI configuration with event_id deduplication and user_data SHA256 hashingClean GA4 migration with enhanced e-commerce events (view_item, add_to_cart, purchase)Consent Mode v2 compliance with AxeptioMonthly Looker Studio dashboard for management (Revenue, ROAS by channel, LTV cohorts)
Reviews
Recommendations
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Computer Science Master's DegreeParis VI2023