Nicolas Cousin

Tracking & Analytics Expert

Freelance consultant with +8 years of experience.
Server-Side Tracking specialist, TMS & analytics. Former official Tealium & Commanders Act support.

Based in Switzerland · Projects in France & Switzerland · Remote or on-site

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Nicolas Cousin - Freelance TMS Consultant
8+
Years of Experience
12+
Tools Mastered
100%
Satisfied Clients
10+
Recommendations

My Expertise

TMS, analytics, compliance and tools : one-time intervention, fixed-price or staff augmentation

Tag Management

Client-side & server-side implementation. Migration to SST to bypass adblockers, improve data quality and strengthen GDPR compliance. Compatible with Stape, AddingWell, Cloud Run.

Tealium Tealium
Commanders Act Commanders Act
GTM GTM
Adobe Launch Adobe Launch

Analytics

Tracking plan implementation, data validation, request debugging and migrations (e.g. Universal Analytics → GA4). Server-side coverage included.

Piano Analytics Piano
Adobe Analytics Adobe Analytics
Google Analytics Google Analytics
Matomo Matomo

Compliance

CMP audit, detection of cookies dropped before consent, IAB TCF 2.2 signal verification and alignment with GDPR and Swiss LPD.

OneTrust OneTrust
Axeptio Axeptio
TrustCommander TrustCommander
Didomi Didomi
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Tools & AI

Custom Chrome extensions for daily TMS and SST debugging. I also use AI to speed up implementations, analyze logs and generate mapping rules.

Chrome Chrome
SST Inspector SST Inspector
Claude Claude
Learning next Piwik PRO · Usercentrics

Completed Projects

Recent client work

TotalEnergies

New website tagging with Piano Analytics, Tealium implementation, testing and validation of tracking plan.

Piano Analytics Tealium Tracking Plan

BPCE Group

Audit and assessment of the Tealium Server-Side implementation. Data flow analysis, event coverage and compliance review. iOS & Android Webview debugging.

Tealium Adobe Analytics Server-Side Mobile

Club Med & Gaumont

Google Tag Manager optimization and migration to Google Analytics 4.

GTM GA4 Migration

Why Work With Me

As former official Tealium & Commanders Act support, I have deep knowledge of these products. I've handled hundreds of complex incidents.

I have end-to-end expertise in Server-Side Tracking: endpoint detection, coverage audits, client→server migration, real-world debugging using my own tools. I've worked on live SST setups at enterprise clients.

At Converteo, I also managed end-to-end projects: scoping, team coordination, client relations. I combine this project management experience with deep technical expertise in JavaScript and TMS to create custom solutions.

E-commerce Retail Finance & Banking Media SaaS Travel & Transport

Let's Work Together

Need a new tag implemented? A migration to Server-Side Tracking planned? A tracking incident resolved? An audit of your setup? Let's discuss your needs.

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