Freelancer profile translated to English.
Back to original languageAbout Mathieu
Expert SEA & Tracking | Google Ads · GA4 · GTM Server-Side
Since 2018, I've been helping VSEs and SMEs drive their growth without wasting their advertising budget. First as a Web Analyst in a Parisian agency (dozens of Google Ads and Analytics accounts managed), then as an e-commerce entrepreneur, I've been on both sides of the table.
This changes things for you: every euro you invest in advertising, I treat it as if it were my own.
What I do specifically:
- Google Ads, Microsoft Ads & Meta Ads Management (Search, Shopping, PMax)
- Server-Side Tracking: GA4 + GTM, GDPR compliant, resistant to browser blocking
- Full Audit: conversion leaks, budget waste, prioritized action plan
- CookieYes / CMP v2 Implementation
- Clear Looker Studio Reporting, 30 min weekly check-in included
- A/B testing & behavioral analysis (Hotjar, Smartlook)
How I work:
Fixed monthly retainers, no fixed contract duration. No junior taking over your account, I manage it myself, so you always know who you're talking to. Fully remote, anywhere in France.
You stay because you feel well supported, not because a contract forces you to.
👉 First free 30-min call to review your campaigns and tracking.
French
Native or bilingual
Remote only
Primarily works remotely
Experience
- Isyway Consultant SEA & TrackingSEA & Tracking Consultant (GTM / Server-Side)May 2021 - Today (5 years and 1 month)Paris, FranceSupporting companies in their acquisition strategy (SEA) and the reliability of their data (Tracking & Privacy).Advanced Tracking & GTM Server-Side:- Google Tag Manager Expertise: Comprehensive management of Web & Server-Side containers.- Server-Side Infrastructure: Deployment and maintenance via Addingwell (Partner) or GCP.- Conversion API (CAPI): Implementation of Facebook (Meta), Google Ads, TikTok APIs to ensure reliable data feedback and bypass ad blockers.- Offline Conversion Tracking (OCT): Configuration of offline conversion feedback (CRM, Leads, Store Sales) to Google Ads & Microsoft Ads.- Google Analytics 4 (GA4): Technical audit, migration, advanced configuration, and custom data models.- Dashboarding: Creation of automated reports on Looker Studio.GDPR & Privacy Compliance (Consent Mode):- CMP Implementation: Installation and technical configuration of consent management solutions (CookieYes, Axeptio, Sirdata...).- Google Consent Mode v2: Configuration (Basic & Advanced) to comply with Google directives while preserving conversion modeling.- Tag Conditioning (GTM): Configuration of triggers and exceptions to ensure technical blocking of tags before consent is obtained.SEA (Google Ads & Bing Ads):- Acquisition Strategy: Definition of account structures and choice of channels.- Performance Management: Bid management, Quality Score optimization, and ROAS/ROI maximization.- Copywriting: Writing impactful ads and A/B testing.UX & CRO (Conversion Rate Optimization):- Usability Audits: Analysis of purchase funnels and identification of friction points.- Recommendations: Data-driven optimization proposals.
- Isyway e-commerceBusiness OwnerE-COMMERCEJanuary 2020 - December 2025 (5 years and 11 months)Berneuil-en-Bray, FranceE-commerce company selling fine and natural kitchen utensils and accessories.My responsibilities:Company Management:- Accounting and administrative management- Logistics- Customer Service- Negotiation- CMS ManagementEditorial Content:- Instagram & Facebook (creation of posts and stories using Creator Studio & Canva)- YouTube (Creation of video content via Filmora Pro)Marketing:- Emailing with Mailchimp- Product setup on the CMS- Setting up promotional offers- NewslettersSEA:- Campaign creation- Campaign performance monitoring- Ad copywriting- Testing- Optimizations- Account setup (Billing, tracking, configurations...)SEO:- Implementation of an editorial content strategy- Implementation of a keyword strategyAnalysis:- Universal Analytics to GA4 migration- Analysis, Reporting, and decision-making on the most successful channels- Google Analytics account management and optimization- Google Tag Manager account management (Tag deployment, creation of new triggers)- Purchase funnel analysis with Smartlook (UX tool)
- DigitalkeysWeb AnalystDIGITAL AND ITFebruary 2018 - January 2021 (2 years and 11 months)Paris, FranceMy responsibilities:Analysis:- Google Analytics / GTM Account Audits- Google Analytics account management and optimization (Implementation of identified recommendations, optimizations, ...)- Google Tag Manager account management (Tag deployment, creation of new triggers, technical briefs for new variable deployment)- Tagging plan writing (Google Analytics / Google Tag Manager), implementation tracking, testing...- Data Studio: Optimization of existing dashboards, development of new agency dashboards (Import of external data, proposal and creation of new dashboards)SEA:- Campaign creation- Campaign performance monitoring- Structure proposals- Ad copywriting- Testing- Optimizations- Account setup (Billing, tracking, configurations...)UX/Ergonomics:- Ergonomic audits of our clients' websites- Recommendation proposals- Test implementation- Results monitoringProgramming:- Dashboard automation- Scripts to monitor website traffic and improve the efficiency of Google Ads accounts
Reviews
Louis
Actiondesk
Reviewed on 1/26/2023
Fast and high-quality work, thank you Mathieu!
L
LĂ©na
CBK-Interactive
Reviewed on 9/29/2022
Once again, it was a pleasure working with Mathieu. He quickly understood our needs and was efficient in his tasks. He is also a particularly pedagogical and available person!
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Education
- Master 1 (M1), Marketing and CommunicationMBA ESG2016
- Master 2 (M2), E-businessMBA ESG2017