Sergii L.

**Working in EU and US time zones** ⚡ Top 1% on Upwork — Expert-Vetted ⭐ 100% Job Success Score 🚀 Helped 100+ companies improve their tracking, analytics, and conversion performance I’m a Senior Digital Analytics and Tracking Implementation Specialist who helps businesses collect accurate data, connect marketing platforms, and turn analytics into actionable insights. My work goes beyond installing tracking codes. I design reliable measurement systems across websites, advertising platforms, CRMs, payment systems, and data warehouses—so you can trust your numbers and make better decisions. How I can help: • Audit and repair inaccurate or incomplete tracking setups • Implement GA4 and Google Tag Manager from the ground up • Build server-side tracking with server-side GTM • Configure e-commerce and subscription tracking • Implement Meta Conversions API and other server-side integrations • Set up Google Ads enhanced and offline conversions • Connect CRM, payment, and backend data with advertising platforms • Build BigQuery data pipelines and custom reporting tables • Create Looker Studio dashboards and funnel reports • Track leads, purchases, customer status, revenue, margin, and lifetime value • Design measurement plans and technical tracking specifications • Support CRO experiments with reliable event tracking and reporting • Diagnose discrepancies between GA4, ad platforms, Shopify, CRM, and backend data Core expertise: • Google Analytics 4 and GA360 • Google Tag Manager and server-side GTM • BigQuery, SQL, and Dataform • Looker Studio and Tableau • Google Ads conversion tracking • Meta Pixel and Conversions API • LinkedIn, TikTok, and Microsoft Ads tracking • Shopify and Shopify Customer Events • Magento, Webflow, Stripe, and custom applications • Salesforce, Pipedrive, Odoo, Calendly, and other CRM integrations • Consent Mode, cookie consent, and cross-domain tracking • A/B testing, funnel analysis, and conversion rate optimization I can lead the complete analytics implementation process—from requirements and measurement planning to technical implementation, QA, reporting, and communication with developers and stakeholders. You’ll get clear communication, practical recommendations, carefully tested implementations, and documentation your team can continue using after the project is complete. If your analytics numbers don’t match, important conversions are missing, or you need a scalable tracking architecture, send me a message with a brief description of your setup and the problem you’re trying to solve.