Chemical Engineer turned GA4 Data Integrity Auditor | Process Control & Zero-Loss Tracking
I don't approach tracking as a marketer; I approach it as a process engineer. Most e-commerce and SaaS teams don't realize their tracking is broken until it has already corrupted weeks of ad spend decisions. I apply Mass Balance and Failure Mode Analysis (FMEA) to analytics infrastructure to find where the pipeline leaks and why.
- GA4 Data Integrity Audits: 47-point diagnostic across Shopify, GTM, and GA4 — scored matrix, dev-ready fix tickets, and QA monitoring dashboard
- Zero-Loss Tracking: Deep-dive GTM container reviews, cross-domain integrity checks, and silent failure detection before it corrupts your ad spend signals
- NL2SQL & Semantic Layer QA: Design of Experiments stress-testing of AI-powered query platforms — diagnosing architectural failures before they reach production
- SaaS Revenue Protection: Dual-method SQL redundancy validation to identify at-risk MRR before it disappears from your model
- GA4 & NL2SQL Architecture Stress-Test — Diagnosed 16 critical failures across 5 bug classes using a 30-query Design of Experiments (DoE). Real client. 5-star review.
- SaaS Revenue Risk Engine — Identified $250K at-risk MRR using engineering redundancy validation and dual-method SQL cross-checks. Random Forest ML + Tableau control panel.
GA4 Google Tag Manager Shopify BigQuery SQL Python Looker Studio Scikit-learn Tableau
- Upwork (Book a GA4 Audit): https://www.upwork.com/freelancers/datacharles
- LinkedIn: http://www.linkedin.com/in/caniji
- Email: charles@aniji.ca