GTM ENGINEER

Waseem Raja

Building data-driven ecosystems at the intersection of analytics & engineering.

DEMO.REEL // 2025
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About

I'm a GTM Engineer specializing in robust data collection frameworks, tag management solutions, and analytics ecosystems.

With deep expertise in Google Tag Manager, GA4, and advanced tracking implementations, I bridge the gap between marketing teams and engineering to deliver precise, scalable data infrastructure.

From client-side tracking to server-side architectures, I design systems that capture every meaningful signal — cleanly and reliably.

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Projects
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Years Exp.
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Clients
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Projects

001
Analytics

E-Commerce Tracking Suite

End-to-end GA4 ecommerce implementation with custom dimensions, enhanced measurement, and BigQuery integration for advanced reporting and attribution.

GA4GTMBigQuery
View Case Study →
002
Data Pipeline

Multi-Platform Attribution Model

Unified attribution model connecting Google Ads, Meta, and offline conversions using server-side GTM and Measurement Protocol v2.

sGTMMeasurement ProtocolLooker Studio
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003
Automation

GTM Audit Automation Tool

Custom Node.js script to audit GTM containers via API, identify tracking gaps, duplicate tags, and auto-generate comprehensive audit reports.

JavaScriptGTM APINode.js
View Case Study →
004
Server-Side

Server-Side Tracking Infrastructure

Migrated client-side tracking to server-side GTM on Cloud Run, improving data accuracy by 35% and eliminating ad-blocker data loss.

sGTMCloud RunGA4
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Skills

Tag Management

Google Tag Manager
Server-Side GTM
Tealium iQ

Analytics

Google Analytics 4
BigQuery
Looker Studio

Development

JavaScript
Python
HTML / CSS

Advertising

Google Ads Conversion
Meta Pixel / CAPI
LinkedIn Insight Tag
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Contact