Technical guides from the field
Patterns, specs, and implementation notes from real fintech analytics projects.
Mastering the DataLayer for E-Commerce
A hands-on guide to understanding how dataLayer pushes drive GA4 and GTM tracking in modern web applications.
Online-to-Offline Attribution: JS Click Tracker to Ad Platform Upload
JS click tracker, PostgreSQL schema, nightly Airflow batch with IIN/phone match key, and platform upload scripts.
S2S Offline Conversion Pipeline: CRM Loan Statuses to Ad Platforms
Feed CRM loan disbursement events back to Google Ads, Meta, and TikTok for value-based bidding. Python + Airflow code included.
GA4 E-Commerce for React SPA via GTM: Single Container, Three Platforms
Single GTM container firing GA4, Meta CAPI, TikTok Events API, and Google Ads simultaneously from a React SPA.
AppsFlyer OneLink Flutter Dev Spec: iOS, Android, and Deep Link QA
iOS Associated Domains, Android App Links, SDK init order, 15+ QA test cases.
Lead Validation via Kazakhstan GovTech API: IIN/Phone Check Before GTM Fire
IIN/phone validation at form submit with Node.js backend proxy, Redis caching, and conditional GTM events on valid leads only.
Core Web Vitals Optimization Spec: TTFB, LCP, and Deferred GTM
Developer-ready spec: TTFB, LCP, deferred GTM, JSON-LD. Every task includes acceptance criteria.