Freelancer profile translated to English.

Description

A reliable data foundation is the be-all and end-all for any decision-making in digital marketing. I help companies achieve the data quality necessary for their individual use case - technically clean & GDPR compliant. My focus is on Google Analytics 4 (GA4) as well as client-side and server-side Google Tag Manager (sGTM). For visualizing the collected data, I use Looker Studio. For on-site optimization (A/B/n-testing), I mostly use ABlyft or Klaviyo.

I support my clients in the following areas:

- Auditing the existing tracking and reporting setup: Identification of error sources & optimization potential in GA4 / GTM

- Implementation of client-side and server-side tagging solutions via GTM

- GDPR & Consent Management (Basic and Advanced) – for SPAs, websites, webshops

- Consolidation & Debugging of more complex GTM architectures

- Strategic data layer implementations

- Cross-service reporting via Looker Studio

- Conversion optimization (A/B/n-testing), including via ABlyft and Klaviyo

- Strategic digital marketing and e-commerce consulting

As a business information scientist with over ten years of experience as a project and team leader for interdisciplinary online marketing and e-commerce teams, I bring additional experience that helps me in my daily work as a strategic web analytics and tracking expert.

I am happy to be available for a free & non-binding initial consultation - write to me or book a call via:

Industry field of expertise

Languages

German
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Stuttgart (up to 50km)

fabulabs GmbH
Advanced Consent Mode Setup: CMP Consentmanager.net and GTM
HEALTH AND WELLNESS
September 2025 - October 2025 (1 month)
Stuttgart, Germany
Check of the consent handling implementation
Advanced Consent Mode config via Consentmanager.net and GTM
Consulting services for Server Side GTM
Conversion tracking via GTM
Consent Management Server-side tracking Google Tag Manager Google Analytics 4
conference-tv GmbH & Co. KG
Consent Mode v2 Setup with Cookie Borlabs, GTM & GA4
INTERNET OF THINGS (IOT)
September 2025 - September 2025
Stuttgart, Germany
Fix of a redundant consent handling implementation
Reconfiguration of Cookie Borlabs including Data Layer Pushes
Reconfiguration of Google Tag Manager for GDPR-compliant implementation of Google Analytics 4 and Google Ads
Troubleshooting error logs in the console due to faulty Borlabs settings
Setting up a secure, more future-proof data layer architecture
Configuration of Google Tags for Google Analytics 4 and Google Ads
Conversion Tracking Google Tag Manager Google Analytics 4 Cookie Borlabs Wordpress
Modulor GmbH
Tracking Audit - GTM & GA4 Consolidation
E-COMMERCE
July 2025 - July 2025
Berlin, Germany
E-commerce tracking audit for Modulor - an online department store based on a Single Page Application (SPA):

- Migrated from Custom HTML to Tag Templates (Facebook & Microsoft Advertising)
- Standardized naming conventions for Tags, Triggers, and Variables
- Fixed broken Consent Trigger
- Consolidated Triggers by removing over-engineered logic
- Added Google Tag for Google Ads
- Modified Google Analytics 4 Tag to include UTM parameters
- Removed unused (and large) Tags, Triggers, and Variables
- Added soft conversions for Google Ads (add_to_cart / begin_checkout)

Google Analytics 4 Google Tag Manager Consent Management Google Ads Tracking Conversion Tracking

Check out Sascha's experience

Maren

conference tv

Reviewed on 9/8/2025

Sascha Roth helped us quickly, efficiently, and absolutely professionally with a tracking problem (GA4, Tag Manager + Borlabs). His work and the collaboration with him were really great! I am very happy to recommend him!

Daniela

Unternehmensgruppe Kempf

Reviewed on 5/7/2025

Sascha reliably and competently supported us in the upcoming tracking projects for Möbel Kempf and HR Home Shopping. The collaboration was always pleasant, professional, and efficient. We are completely satisfied with his performance and can recommend him without reservation.

Show all 3 reviews