Freelancer profile translated to English.
Back to original languageAbout Bastien
đ +25 satisfied clients.
đ +7 years of experience.
My expertise covers:
đ Tracking & Analytics
đ CRO & Optimization of your customer journey
đ GDPR Compliance & Server-side Tracking.
I support my clients by taking charge of their entire tracking, integration, and use of marketing & analytics tools via GTM.
I collaborate with marketing and UX teams to analyze and optimize customer journeys or landing pages.
đĄ My skills:
đ Web Analysis:
âą Development of tracking plans and implementation via GTM
âą Analytics Audit (Web/App)
âą Advanced tool configuration: GA4, Matomo, Piwik Pro, Piano
âą Custom reporting
đ CRO (Conversion Rate Optimization):
âą CRO and CJO analysis
âą AB Test ideas, QuickWins, and UX recommendations.
âą Creation and management of CRO roadmaps.
âą Implementation of A/B tests via AB Tasty and Kameleoon
đŻ Ads Tracking
đ Tracking & Server-Side:
âą Configuration of server-side solutions via Addingwell and Stape
âą Unified tracking between your CRM & your analytics tools
âą CDP Integration: Segment or Imagino
âą Attribution tool integration: Hyros, Stackadapt
âą Management of your cookie banners (Axeptio, Didomi...)
đ» Tools mastered:
âą Web Analytics: GTM, GA4, Piano Analytics, Matomo, Piwik Pro
âą Product Analytics: Mixpanel, Amplitude, PostHog, Adjust
âą UX/CRO: ContentSquare, Clarity, Plerdy
âą AB Test: AB Tasty, Kameleoon
âą CDP: Segment, RudderStack, Imagino
âą Ads Tracking: Meta Ads, Google Ads, and other ad networks
âą Server-side Tracking: Stape, AddingWell
đ Clients supported:
Sciences PO, La France Mutualiste, La Ligue Nationale de Rugby, SociĂ©tĂ© GĂ©nĂ©rale Assurance, SystĂšme U, Matis.club, Sapians, IRP Auto, Domitys, Center Parc, Ăric Bompard, Maison KitsunĂ©, Besson Chaussure, Prixtel, Mister Menuiserie⊠and many others!
My clients appreciate the quality of my advice, my respect for deadlines, and my methods.
Feel free to contact me!
English
Conversational
French
Native or bilingual
Remote only
Primarily works remotely
Experience
- Loewi
On Malt
Audit & Optimization of Server-Side Tracking (Shopify, Addingwell, GA4, Google Ads, Meta, Clarity...)E-COMMERCEOctober 2025 - December 2025 (2 months) - AMI-HAUTEURComplete Overhaul of Tracking & GDPR Banner â Server-side & Advertising OptimizationE-COMMERCEApril 2025 - Today (1 year and 4 months)Paris, FranceAMI-HAUTEURis an e-commerce player specializing in access and security solutions for heights. In a context of growing their Shopify store, we conducted a strategic intervention on their entire data, advertising & CRO stack to boost campaign performance while respecting legal obligations.Missions performed:đ GDPR Optimization & Improvement of Consent Rate:âą Redesign of the cookie banner with a more engaging and GDPR-compliant designâą Results: acceptance rate increased from 58% to +80%, +23% in orders, +10% in traffic from advertising retargetingđ Complete Tracking & Server-side Shopify Migration:âą Redesign of advertising tracking: Meta, Google Ads, Pinterest, and TikTok Adsâą Implementation of hybrid tracking (server-side + client-side) via GTM to capture all useful data up to checkoutâą Removal of obsolete tools and rationalization of scripts to improve loading performanceđ° Profitability Management through Data:âą Integration of profit data (actual margin) into Google Analytics 4 & Google Ads to manage campaigns based on net ROASđ§Ș Launch of A/B Tests via Intelligems:âą Installation of Intelligems and deployment of the first A/B tests (results under analysis)
- ecodomioTracking, Web Analytics & PostHog IntegrationSOFTWARE PUBLISHINGFebruary 2025 - Today (1 year and 6 months)Paris, FranceEcodomio, a SaaS platform specializing in energy renovation, needed precise and actionable analytical tracking. We implemented a tracking plan and integrated their data viaPostHog**, **Google Tag Manager**, and **SQLto ensure optimal monitoring of performance and user interactions.đ Tracking Implementation and Optimization*Custom Tracking Plan:definition and implementation of key events to track website and SaaS usage.*Google Tag Manager (GTM) & PostHog:integration of tags to centralize data and automate interaction collection.*Data Testing and Validation:verification of event triggers and anomaly correction.đ PostHog Dashboard & Web AnalyticsCreation of an analytical dashboard with strategic KPI monitoring:
- Users & Cumulative Users
- Logins & Registrations
- Monthly Active Users (MAU / WAU)
- Number of downloaded documents (and associated pages)
- Web analytics data: sessions, visitors, bounce rateâŠ
âïž Integration of Commercial Data via SQL (ClickHouse & PostgreSQL)- Connection ofPostgreSQLdatabases to enrich tracking with business insights.
- Implementation ofSQLqueries (ClickHouse) to measure and obtain retention metrics (MAU, WAU) as well as conversion/commercial data in the future.
đ Implementation of a scalable and structured tracking system, facilitating CRO optimization, SaaS performance, and real-time data analysis.
Reviews
A
Aurore
VESTALPHA
Reviewed on 10/22/2024
Bastien quickly grasped our issues, performing thorough and rigorous work within the allotted time.
Audrey
YouLoveWords
Reviewed on 11/4/2021
Excellent work and communication throughout the project, I recommend Bastien's profile for all SXO related issues.
Recommendations
FU
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Education
- HETICMultimedia Project Manager, Development Option2019
- Ăcole MJM Graphic DesignWebdesigner2017
Certifications
- Google Analytics ExpertGoogle
- AB TASTY - ExpertAB Tasty