Graizelle P.

Senior Data Engineer & BI Specialist| BigQuery | Airflow | Looker

📊 Your data is already telling a story — I make sure you can actually hear it. I turn messy pipelines, scattered spreadsheets, and siloed reports into clean, automated, decision-ready insights. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔹 WHO I AM Senior Data Engineer & BI Specialist with 10+ years building end-to-end data pipelines across BPO, iGaming, finance, and e-commerce — from raw ingestion to executive dashboards. My stack runs on GCP + BigQuery + Apache Airflow (Cloud Composer), with Looker, Looker Studio, and Apache Superset on the reporting layer. I write production-grade Python and SQL — not just scripts, but real DAGs handling millions of rows in live telco and BPO environments. I also bring automation to repetitive ops work via Playwright, Zapier, Google Apps Script, and API integrations — so your team stops doing by hand what code can do on a schedule. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔹 WHAT I DELIVER 📊 Data Pipeline Engineering Airflow DAGs, GCP Cloud Composer, BigQuery ETL — ingestion to warehouse, production-ready and maintainable. 📈 BI Dashboards & Reporting Looker, Looker Studio, Apache Superset, Excel, Google Sheets — automated, stakeholder-ready, always up to date. 🔍 Data Analytics & Insights Cleaning, modeling, and surfacing actionable findings from complex, multi-source datasets. 🤖 Automation & API Integration Playwright scrapers, Zapier flows, Apps Script, REST APIs — eliminate manual, repetitive work. 🔄 Data Migration & Mapping Schema mapping, source-to-target ETL design, and clean data transformation across systems. 💰 Finance & Ops Data Support Billing reconciliation, commission tracking, pay-for-performance models, invoicing automation. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔹 TECH STACK Visualization & BI → Looker · Looker Studio · Apache Superset · Excel · Google Sheets Data & Cloud → GCP · BigQuery · Apache Airflow · Cloud Composer · SharePoint Programming & Query → Python · SQL / BigQuery SQL · LookML · Google Apps Script Automation & Integration → Zapier · Playwright · REST APIs · Web Scraping ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔹 DOMAIN EXPERIENCE BPO / Contact Center · iGaming · Finance · E-Commerce · Telco · Real Estate · Logistics ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Ready to turn your data into a competitive advantage? Drop me a message — let's scope your project and get moving. ⚡ Fast response · Remote-first · Long-term partnerships welcome