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oleh_havryshkiv

Oleh Havryshkiv

@oleh_havryshkiv
Ukraine
English, Ukrainian
About me
Web Analyst with 3+ years turning messy marketing and product data into decisions companies can act on. I started in GA4/GTM tracking, but my work has grown into the harder problems most analysts don't touch: server-side tagging, multi-touch attribution modeling etc. What I can do for you: • Set up GA4, GTM, and server-side tagging correctly the first time • Build multi-touch attribution models that reflect reality, not last-click guesswork • Connect Google Ads, Meta, and GA4 data into clean, automated dashboards • Audit existing tracking and tell you exactly what's broken and why... Read more

Skills

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oleh_havryshkiv
Oleh Havryshkiv
Offline • 

See my services

Tracking & Reporting
I will set up google tag manager and ga4 event tracking
From$40 / projectMore details

Portfolio

Work experience

Web Analyst — Buki

Buki • Full-time

Dec 2025 - Present • 7 mos

Built multi-touch attribution models (linear, U-shaped) blending Google Ads, Meta, and GA4 data. Built and maintain 50+ dbt models. Reduced ad-platform/internal data discrepancy from 25%+ to under 10% and shipped automated data-quality alerting.

PDFSimpli

Web Analyst — airSlate

PDFSimpli • Full-time

May 2024 - Dec 2025 • 1 yr 7 mos

Designed ETL pipelines in Apache Airflow integrating Redshift, Google Ads, and S3. Automated Customer Match list and offline conversion uploads via the Google Ads API. Built 20+ reports in Amazon QuickSight and ran behavioral analysis in Hotjar.

Bazzi

Web Analyst — Bazar.club

Bazzi • Full-time

Mar 2023 - May 2024 • 1 yr 2 mos

Led end-to-end analytics setup: GA4 + GTM (200+ tracked events), Firebase for iOS/Android, and 15+ BigQuery-powered Power BI reports across marketing, sales, and SEO.