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anijic/README.md

Hi, I'm Charles Aniji 👋

Chemical Engineer turned GA4 Data Integrity Auditor | Process Control, Mass Balance & First-Party SST

Most e‑commerce and SaaS companies lose 20–40% of their conversion data due to broken tracking and client‑side signal loss. But insights are only as good as the data infrastructure underneath them.

I don't approach tracking as a marketer; I approach it as a process engineer. I apply Mass Balance and Failure Mode Analysis (FMEA) to analytics infrastructure to find where the pipeline leaks and why — and now extend that into first‑party Server‑Side Tagging (SST) on GCP App Engine.

🚀 What I Do

  • GA4 Data Integrity Audits: 47‑point diagnostic across Shopify, GTM, and GA4 — scored matrix, dev‑ready fix tickets, and a QA monitoring dashboard
  • GA4 ↔ Shopify Mass Balance Monitoring: FULL OUTER JOIN reconciliation between GA4 events and Shopify orders, with FMEA leak classification (FM‑01 tracker suppression, FM‑03 phantom purchases, FM‑05 sensor ghosts) and quantified impact
  • First‑Party SST on GCP App Engine: Dual GTM Web + Server containers with custom first‑party endpoints (e.g., collect.aniji.ca) to bypass ITP/ad‑blockers and restore signal integrity, plus app.yaml + GTM JSON exports and a GitHub Pages trigger environment to validate Web → Server → GA4 delivery before production
  • NL2SQL & Semantic Layer QA: Design of Experiments (DoE) stress‑testing of AI‑powered query platforms to diagnose 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

📊 Featured Projects

🛠 Stack

GA4Google Tag ManagerShopifyBigQuerySQLPythonLooker StudioScikit-learnTableauGCP App EngineServer-Side Tagging

📫 Work With Me

Pinned Loading

  1. ga4-data-integrity-auditga4-data-integrity-auditPublic

    GA4 tracking audit delivering a 47-point diagnostic matrix, developer-ready fix tickets, and a Looker Studio QA monitoring dashboard.

  2. shopify-ga4-mass-balance-monitorshopify-ga4-mass-balance-monitorPublic

    Zero-loss GA4 ↔ Shopify reconciliation and first-party Server-Side Tagging (SST) proxy on GCP App Engine — applying Chemical Engineering FMEA and mass-balance principles to detect phantom revenue a…

    Python

  3. saas_churn_predictorsaas_churn_predictorPublic

    Heuristic + ML churn risk engine using the IBM Telco benchmark dataset. SQL safety-factor scoring, Tableau control panel, Random Forest modeling, and $249K modeled monthly revenue exposure.

    Jupyter Notebook 1

  4. nlq_platform_stress_testnlq_platform_stress_testPublic

    30-query DoE stress-test of an enterprise NL2SQL semantic platform. Diagnosed 16 architectural failures across 5 bug classes using BigQuery ground-truth validation.

  5. Retail_Analytics_RepoRetail_Analytics_RepoPublic

    RFM segmentation and market basket analysis on 540K+ transactions identifying £350K revenue opportunity. SQL, R, Tableau.

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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anijic/README.md

Hi, I'm Charles Aniji 👋

Chemical Engineer turned GA4 Data Integrity Auditor | Process Control, Mass Balance & First-Party SST

Most e‑commerce and SaaS companies lose 20–40% of their conversion data due to broken tracking and client‑side signal loss. But insights are only as good as the data infrastructure underneath them.

I don't approach tracking as a marketer; I approach it as a process engineer. I apply Mass Balance and Failure Mode Analysis (FMEA) to analytics infrastructure to find where the pipeline leaks and why — and now extend that into first‑party Server‑Side Tagging (SST) on GCP App Engine.

🚀 What I Do

  • GA4 Data Integrity Audits: 47‑point diagnostic across Shopify, GTM, and GA4 — scored matrix, dev‑ready fix tickets, and a QA monitoring dashboard
  • GA4 ↔ Shopify Mass Balance Monitoring: FULL OUTER JOIN reconciliation between GA4 events and Shopify orders, with FMEA leak classification (FM‑01 tracker suppression, FM‑03 phantom purchases, FM‑05 sensor ghosts) and quantified impact
  • First‑Party SST on GCP App Engine: Dual GTM Web + Server containers with custom first‑party endpoints (e.g., collect.aniji.ca) to bypass ITP/ad‑blockers and restore signal integrity, plus app.yaml + GTM JSON exports and a GitHub Pages trigger environment to validate Web → Server → GA4 delivery before production
  • NL2SQL & Semantic Layer QA: Design of Experiments (DoE) stress‑testing of AI‑powered query platforms to diagnose 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

📊 Featured Projects

🛠 Stack

GA4Google Tag ManagerShopifyBigQuerySQLPythonLooker StudioScikit-learnTableauGCP App EngineServer-Side Tagging

📫 Work With Me

Pinned Loading

  1. ga4-data-integrity-auditga4-data-integrity-auditPublic

    GA4 tracking audit delivering a 47-point diagnostic matrix, developer-ready fix tickets, and a Looker Studio QA monitoring dashboard.

  2. shopify-ga4-mass-balance-monitorshopify-ga4-mass-balance-monitorPublic

    Zero-loss GA4 ↔ Shopify reconciliation and first-party Server-Side Tagging (SST) proxy on GCP App Engine — applying Chemical Engineering FMEA and mass-balance principles to detect phantom revenue a…

    Python

  3. saas_churn_predictorsaas_churn_predictorPublic

    Heuristic + ML churn risk engine using the IBM Telco benchmark dataset. SQL safety-factor scoring, Tableau control panel, Random Forest modeling, and $249K modeled monthly revenue exposure.

    Jupyter Notebook 1

  4. nlq_platform_stress_testnlq_platform_stress_testPublic

    30-query DoE stress-test of an enterprise NL2SQL semantic platform. Diagnosed 16 architectural failures across 5 bug classes using BigQuery ground-truth validation.

  5. Retail_Analytics_RepoRetail_Analytics_RepoPublic

    RFM segmentation and market basket analysis on 540K+ transactions identifying £350K revenue opportunity. SQL, R, Tableau.

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
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anijic/README.md

Hi, I'm Charles Aniji 👋

Chemical Engineer turned GA4 Data Integrity Auditor | Process Control, Mass Balance & First-Party SST

Most e‑commerce and SaaS companies lose 20–40% of their conversion data due to broken tracking and client‑side signal loss. But insights are only as good as the data infrastructure underneath them.

I don't approach tracking as a marketer; I approach it as a process engineer. I apply Mass Balance and Failure Mode Analysis (FMEA) to analytics infrastructure to find where the pipeline leaks and why — and now extend that into first‑party Server‑Side Tagging (SST) on GCP App Engine.

🚀 What I Do

  • GA4 Data Integrity Audits: 47‑point diagnostic across Shopify, GTM, and GA4 — scored matrix, dev‑ready fix tickets, and a QA monitoring dashboard
  • GA4 ↔ Shopify Mass Balance Monitoring: FULL OUTER JOIN reconciliation between GA4 events and Shopify orders, with FMEA leak classification (FM‑01 tracker suppression, FM‑03 phantom purchases, FM‑05 sensor ghosts) and quantified impact
  • First‑Party SST on GCP App Engine: Dual GTM Web + Server containers with custom first‑party endpoints (e.g., collect.aniji.ca) to bypass ITP/ad‑blockers and restore signal integrity, plus app.yaml + GTM JSON exports and a GitHub Pages trigger environment to validate Web → Server → GA4 delivery before production
  • NL2SQL & Semantic Layer QA: Design of Experiments (DoE) stress‑testing of AI‑powered query platforms to diagnose 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

📊 Featured Projects

🛠 Stack

GA4Google Tag ManagerShopifyBigQuerySQLPythonLooker StudioScikit-learnTableauGCP App EngineServer-Side Tagging

📫 Work With Me

Pinned Loading

  1. ga4-data-integrity-auditga4-data-integrity-auditPublic

    GA4 tracking audit delivering a 47-point diagnostic matrix, developer-ready fix tickets, and a Looker Studio QA monitoring dashboard.

  2. shopify-ga4-mass-balance-monitorshopify-ga4-mass-balance-monitorPublic

    Zero-loss GA4 ↔ Shopify reconciliation and first-party Server-Side Tagging (SST) proxy on GCP App Engine — applying Chemical Engineering FMEA and mass-balance principles to detect phantom revenue a…

    Python

  3. saas_churn_predictorsaas_churn_predictorPublic

    Heuristic + ML churn risk engine using the IBM Telco benchmark dataset. SQL safety-factor scoring, Tableau control panel, Random Forest modeling, and $249K modeled monthly revenue exposure.

    Jupyter Notebook 1

  4. nlq_platform_stress_testnlq_platform_stress_testPublic

    30-query DoE stress-test of an enterprise NL2SQL semantic platform. Diagnosed 16 architectural failures across 5 bug classes using BigQuery ground-truth validation.

  5. Retail_Analytics_RepoRetail_Analytics_RepoPublic

    RFM segmentation and market basket analysis on 540K+ transactions identifying £350K revenue opportunity. SQL, R, Tableau.

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content
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Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
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anijic/README.md

Hi, I'm Charles Aniji 👋

Chemical Engineer turned GA4 Data Integrity Auditor | Process Control, Mass Balance & First-Party SST

Most e‑commerce and SaaS companies lose 20–40% of their conversion data due to broken tracking and client‑side signal loss. But insights are only as good as the data infrastructure underneath them.

I don't approach tracking as a marketer; I approach it as a process engineer. I apply Mass Balance and Failure Mode Analysis (FMEA) to analytics infrastructure to find where the pipeline leaks and why — and now extend that into first‑party Server‑Side Tagging (SST) on GCP App Engine.

🚀 What I Do

  • GA4 Data Integrity Audits: 47‑point diagnostic across Shopify, GTM, and GA4 — scored matrix, dev‑ready fix tickets, and a QA monitoring dashboard
  • GA4 ↔ Shopify Mass Balance Monitoring: FULL OUTER JOIN reconciliation between GA4 events and Shopify orders, with FMEA leak classification (FM‑01 tracker suppression, FM‑03 phantom purchases, FM‑05 sensor ghosts) and quantified impact
  • First‑Party SST on GCP App Engine: Dual GTM Web + Server containers with custom first‑party endpoints (e.g., collect.aniji.ca) to bypass ITP/ad‑blockers and restore signal integrity, plus app.yaml + GTM JSON exports and a GitHub Pages trigger environment to validate Web → Server → GA4 delivery before production
  • NL2SQL & Semantic Layer QA: Design of Experiments (DoE) stress‑testing of AI‑powered query platforms to diagnose 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

📊 Featured Projects

🛠 Stack

GA4Google Tag ManagerShopifyBigQuerySQLPythonLooker StudioScikit-learnTableauGCP App EngineServer-Side Tagging

📫 Work With Me

Pinned Loading

  1. ga4-data-integrity-auditga4-data-integrity-auditPublic

    GA4 tracking audit delivering a 47-point diagnostic matrix, developer-ready fix tickets, and a Looker Studio QA monitoring dashboard.

  2. shopify-ga4-mass-balance-monitorshopify-ga4-mass-balance-monitorPublic

    Zero-loss GA4 ↔ Shopify reconciliation and first-party Server-Side Tagging (SST) proxy on GCP App Engine — applying Chemical Engineering FMEA and mass-balance principles to detect phantom revenue a…

    Python

  3. saas_churn_predictorsaas_churn_predictorPublic

    Heuristic + ML churn risk engine using the IBM Telco benchmark dataset. SQL safety-factor scoring, Tableau control panel, Random Forest modeling, and $249K modeled monthly revenue exposure.

    Jupyter Notebook 1

  4. nlq_platform_stress_testnlq_platform_stress_testPublic

    30-query DoE stress-test of an enterprise NL2SQL semantic platform. Diagnosed 16 architectural failures across 5 bug classes using BigQuery ground-truth validation.

  5. Retail_Analytics_RepoRetail_Analytics_RepoPublic

    RFM segmentation and market basket analysis on 540K+ transactions identifying £350K revenue opportunity. SQL, R, Tableau.

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
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Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
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anijic/README.md

Hi, I'm Charles Aniji 👋

Chemical Engineer turned GA4 Data Integrity Auditor | Process Control, Mass Balance & First-Party SST

Most e‑commerce and SaaS companies lose 20–40% of their conversion data due to broken tracking and client‑side signal loss. But insights are only as good as the data infrastructure underneath them.

I don't approach tracking as a marketer; I approach it as a process engineer. I apply Mass Balance and Failure Mode Analysis (FMEA) to analytics infrastructure to find where the pipeline leaks and why — and now extend that into first‑party Server‑Side Tagging (SST) on GCP App Engine.

🚀 What I Do

  • GA4 Data Integrity Audits: 47‑point diagnostic across Shopify, GTM, and GA4 — scored matrix, dev‑ready fix tickets, and a QA monitoring dashboard
  • GA4 ↔ Shopify Mass Balance Monitoring: FULL OUTER JOIN reconciliation between GA4 events and Shopify orders, with FMEA leak classification (FM‑01 tracker suppression, FM‑03 phantom purchases, FM‑05 sensor ghosts) and quantified impact
  • First‑Party SST on GCP App Engine: Dual GTM Web + Server containers with custom first‑party endpoints (e.g., collect.aniji.ca) to bypass ITP/ad‑blockers and restore signal integrity, plus app.yaml + GTM JSON exports and a GitHub Pages trigger environment to validate Web → Server → GA4 delivery before production
  • NL2SQL & Semantic Layer QA: Design of Experiments (DoE) stress‑testing of AI‑powered query platforms to diagnose 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

📊 Featured Projects

🛠 Stack

GA4Google Tag ManagerShopifyBigQuerySQLPythonLooker StudioScikit-learnTableauGCP App EngineServer-Side Tagging

📫 Work With Me

Pinned Loading

  1. ga4-data-integrity-auditga4-data-integrity-auditPublic

    GA4 tracking audit delivering a 47-point diagnostic matrix, developer-ready fix tickets, and a Looker Studio QA monitoring dashboard.

  2. shopify-ga4-mass-balance-monitorshopify-ga4-mass-balance-monitorPublic

    Zero-loss GA4 ↔ Shopify reconciliation and first-party Server-Side Tagging (SST) proxy on GCP App Engine — applying Chemical Engineering FMEA and mass-balance principles to detect phantom revenue a…

    Python

  3. saas_churn_predictorsaas_churn_predictorPublic

    Heuristic + ML churn risk engine using the IBM Telco benchmark dataset. SQL safety-factor scoring, Tableau control panel, Random Forest modeling, and $249K modeled monthly revenue exposure.

    Jupyter Notebook 1

  4. nlq_platform_stress_testnlq_platform_stress_testPublic

    30-query DoE stress-test of an enterprise NL2SQL semantic platform. Diagnosed 16 architectural failures across 5 bug classes using BigQuery ground-truth validation.

  5. Retail_Analytics_RepoRetail_Analytics_RepoPublic

    RFM segmentation and market basket analysis on 540K+ transactions identifying £350K revenue opportunity. SQL, R, Tableau.

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content
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Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

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Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
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anijic/README.md

Hi, I'm Charles Aniji 👋

Chemical Engineer turned GA4 Data Integrity Auditor | Process Control, Mass Balance & First-Party SST

Most e‑commerce and SaaS companies lose 20–40% of their conversion data due to broken tracking and client‑side signal loss. But insights are only as good as the data infrastructure underneath them.

I don't approach tracking as a marketer; I approach it as a process engineer. I apply Mass Balance and Failure Mode Analysis (FMEA) to analytics infrastructure to find where the pipeline leaks and why — and now extend that into first‑party Server‑Side Tagging (SST) on GCP App Engine.

🚀 What I Do

  • GA4 Data Integrity Audits: 47‑point diagnostic across Shopify, GTM, and GA4 — scored matrix, dev‑ready fix tickets, and a QA monitoring dashboard
  • GA4 ↔ Shopify Mass Balance Monitoring: FULL OUTER JOIN reconciliation between GA4 events and Shopify orders, with FMEA leak classification (FM‑01 tracker suppression, FM‑03 phantom purchases, FM‑05 sensor ghosts) and quantified impact
  • First‑Party SST on GCP App Engine: Dual GTM Web + Server containers with custom first‑party endpoints (e.g., collect.aniji.ca) to bypass ITP/ad‑blockers and restore signal integrity, plus app.yaml + GTM JSON exports and a GitHub Pages trigger environment to validate Web → Server → GA4 delivery before production
  • NL2SQL & Semantic Layer QA: Design of Experiments (DoE) stress‑testing of AI‑powered query platforms to diagnose 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

📊 Featured Projects

🛠 Stack

GA4Google Tag ManagerShopifyBigQuerySQLPythonLooker StudioScikit-learnTableauGCP App EngineServer-Side Tagging

📫 Work With Me

Pinned Loading

  1. ga4-data-integrity-auditga4-data-integrity-auditPublic

    GA4 tracking audit delivering a 47-point diagnostic matrix, developer-ready fix tickets, and a Looker Studio QA monitoring dashboard.

  2. shopify-ga4-mass-balance-monitorshopify-ga4-mass-balance-monitorPublic

    Zero-loss GA4 ↔ Shopify reconciliation and first-party Server-Side Tagging (SST) proxy on GCP App Engine — applying Chemical Engineering FMEA and mass-balance principles to detect phantom revenue a…

    Python

  3. saas_churn_predictorsaas_churn_predictorPublic

    Heuristic + ML churn risk engine using the IBM Telco benchmark dataset. SQL safety-factor scoring, Tableau control panel, Random Forest modeling, and $249K modeled monthly revenue exposure.

    Jupyter Notebook 1

  4. nlq_platform_stress_testnlq_platform_stress_testPublic

    30-query DoE stress-test of an enterprise NL2SQL semantic platform. Diagnosed 16 architectural failures across 5 bug classes using BigQuery ground-truth validation.

  5. Retail_Analytics_RepoRetail_Analytics_RepoPublic

    RFM segmentation and market basket analysis on 540K+ transactions identifying £350K revenue opportunity. SQL, R, Tableau.

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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anijic/README.md

Hi, I'm Charles Aniji 👋

Chemical Engineer turned GA4 Data Integrity Auditor | Process Control, Mass Balance & First-Party SST

Most e‑commerce and SaaS companies lose 20–40% of their conversion data due to broken tracking and client‑side signal loss. But insights are only as good as the data infrastructure underneath them.

I don't approach tracking as a marketer; I approach it as a process engineer. I apply Mass Balance and Failure Mode Analysis (FMEA) to analytics infrastructure to find where the pipeline leaks and why — and now extend that into first‑party Server‑Side Tagging (SST) on GCP App Engine.

🚀 What I Do

  • GA4 Data Integrity Audits: 47‑point diagnostic across Shopify, GTM, and GA4 — scored matrix, dev‑ready fix tickets, and a QA monitoring dashboard
  • GA4 ↔ Shopify Mass Balance Monitoring: FULL OUTER JOIN reconciliation between GA4 events and Shopify orders, with FMEA leak classification (FM‑01 tracker suppression, FM‑03 phantom purchases, FM‑05 sensor ghosts) and quantified impact
  • First‑Party SST on GCP App Engine: Dual GTM Web + Server containers with custom first‑party endpoints (e.g., collect.aniji.ca) to bypass ITP/ad‑blockers and restore signal integrity, plus app.yaml + GTM JSON exports and a GitHub Pages trigger environment to validate Web → Server → GA4 delivery before production
  • NL2SQL & Semantic Layer QA: Design of Experiments (DoE) stress‑testing of AI‑powered query platforms to diagnose 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

📊 Featured Projects

🛠 Stack

GA4Google Tag ManagerShopifyBigQuerySQLPythonLooker StudioScikit-learnTableauGCP App EngineServer-Side Tagging

📫 Work With Me

Pinned Loading

  1. ga4-data-integrity-auditga4-data-integrity-auditPublic

    GA4 tracking audit delivering a 47-point diagnostic matrix, developer-ready fix tickets, and a Looker Studio QA monitoring dashboard.

  2. shopify-ga4-mass-balance-monitorshopify-ga4-mass-balance-monitorPublic

    Zero-loss GA4 ↔ Shopify reconciliation and first-party Server-Side Tagging (SST) proxy on GCP App Engine — applying Chemical Engineering FMEA and mass-balance principles to detect phantom revenue a…

    Python

  3. saas_churn_predictorsaas_churn_predictorPublic

    Heuristic + ML churn risk engine using the IBM Telco benchmark dataset. SQL safety-factor scoring, Tableau control panel, Random Forest modeling, and $249K modeled monthly revenue exposure.

    Jupyter Notebook 1

  4. nlq_platform_stress_testnlq_platform_stress_testPublic

    30-query DoE stress-test of an enterprise NL2SQL semantic platform. Diagnosed 16 architectural failures across 5 bug classes using BigQuery ground-truth validation.

  5. Retail_Analytics_RepoRetail_Analytics_RepoPublic

    RFM segmentation and market basket analysis on 540K+ transactions identifying £350K revenue opportunity. SQL, R, Tableau.

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
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anijic/README.md

Hi, I'm Charles Aniji 👋

Chemical Engineer turned GA4 Data Integrity Auditor | Process Control, Mass Balance & First-Party SST

Most e‑commerce and SaaS companies lose 20–40% of their conversion data due to broken tracking and client‑side signal loss. But insights are only as good as the data infrastructure underneath them.

I don't approach tracking as a marketer; I approach it as a process engineer. I apply Mass Balance and Failure Mode Analysis (FMEA) to analytics infrastructure to find where the pipeline leaks and why — and now extend that into first‑party Server‑Side Tagging (SST) on GCP App Engine.

🚀 What I Do

  • GA4 Data Integrity Audits: 47‑point diagnostic across Shopify, GTM, and GA4 — scored matrix, dev‑ready fix tickets, and a QA monitoring dashboard
  • GA4 ↔ Shopify Mass Balance Monitoring: FULL OUTER JOIN reconciliation between GA4 events and Shopify orders, with FMEA leak classification (FM‑01 tracker suppression, FM‑03 phantom purchases, FM‑05 sensor ghosts) and quantified impact
  • First‑Party SST on GCP App Engine: Dual GTM Web + Server containers with custom first‑party endpoints (e.g., collect.aniji.ca) to bypass ITP/ad‑blockers and restore signal integrity, plus app.yaml + GTM JSON exports and a GitHub Pages trigger environment to validate Web → Server → GA4 delivery before production
  • NL2SQL & Semantic Layer QA: Design of Experiments (DoE) stress‑testing of AI‑powered query platforms to diagnose 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

📊 Featured Projects

🛠 Stack

GA4Google Tag ManagerShopifyBigQuerySQLPythonLooker StudioScikit-learnTableauGCP App EngineServer-Side Tagging

📫 Work With Me

Pinned Loading

  1. ga4-data-integrity-auditga4-data-integrity-auditPublic

    GA4 tracking audit delivering a 47-point diagnostic matrix, developer-ready fix tickets, and a Looker Studio QA monitoring dashboard.

  2. shopify-ga4-mass-balance-monitorshopify-ga4-mass-balance-monitorPublic

    Zero-loss GA4 ↔ Shopify reconciliation and first-party Server-Side Tagging (SST) proxy on GCP App Engine — applying Chemical Engineering FMEA and mass-balance principles to detect phantom revenue a…

    Python

  3. saas_churn_predictorsaas_churn_predictorPublic

    Heuristic + ML churn risk engine using the IBM Telco benchmark dataset. SQL safety-factor scoring, Tableau control panel, Random Forest modeling, and $249K modeled monthly revenue exposure.

    Jupyter Notebook 1

  4. nlq_platform_stress_testnlq_platform_stress_testPublic

    30-query DoE stress-test of an enterprise NL2SQL semantic platform. Diagnosed 16 architectural failures across 5 bug classes using BigQuery ground-truth validation.

  5. Retail_Analytics_RepoRetail_Analytics_RepoPublic

    RFM segmentation and market basket analysis on 540K+ transactions identifying £350K revenue opportunity. SQL, R, Tableau.