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Lothar RatsimbaLR

Lothar Ratsimba

Tracking Server-Side & API: Expert 1st Party Data

€250/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Lothar

The advertising tracking ecosystem is undergoing a major transition. Between browser restrictions (ITP), the use of ad blockers, and privacy requirements, traditional "Client-Side" tracking is reaching its limits.

With two years of experience in Google Ads technical support, I now help companies transition to a more robust measurement architecture: Google Tag Manager Server-Side.

My technical approach:

• Data Reliability: Migrating data flows to a dedicated server (Google Cloud) to bypass browser limitations and regain control over the data sent.

• Web Performance: Reducing the weight of scripts on the browser side to optimize Core Web Vitals scores and user experience.

• Conversions API (CAPI): Implementing server-to-server protocols for Google Ads and social platforms, ensuring better ROAS attribution.

• Consent Governance: Deploying Consent Mode V2 to align marketing needs with legal requirements (GDPR).

My goal is to transform often fragmented tracking into a sustainable "First-Party" infrastructure, capable of withstanding market changes while respecting user privacy.
  • French

    Native or bilingual

Can work on-site
Paris (up to 20km)

Experience

  • Google Ads
    Tracking Specialist
    TELECOMMUNICATIONS
    June 2022 - August 2024 (2 years and 2 months)
    Lisbon, Portugal
    Supporting Google Ads clients:
    - Conversion Rate Optimization (CRO)
    - Google Tag Manager
    - Consent Mode V2
    - Data Analysis
    Google Tag Manager Data Analysis GA4 Consent Mode V2
  • FEE2A
    Marketing Manager
    January 2019 - March 2019 (2 months)
    Chelles, France
    Client social media management
    Competitive intelligence
    Research and creation of visuals for websites
    Creation and management of Google Ads campaigns
    Organic referencing management (SEO)
    Creation of marketing plans

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Education

  • Master in Digital Marketing
    Inseec Paris
    2021
    Master 2

Skill set

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