Herizo Randriambahiny

Hi, I'm Herizo RANDRIAMBAHINY, and I'm a Data Automation Specialist dedicated to transforming raw data into actionable business intelligence.

With 4+ years of experience in ETL (Extract, Transform, Load) processes, scripting, and BI development, I build robust, scalable data solutions that drive organizational efficiency and clear strategic reporting.

I specialize in integrating data from various sources—especially in digital analytics and e-commerce—and automating the entire process, from retrieval to visualization.

• Automation: I leverage Python (Pandas, NumPy, scripting, API integration) and Google Apps Script (GAS) for code-based solutions, alongside no-code platforms like Zapier, n8n, and AppSheet to create efficient, low-maintenance data flows.
• Data Warehousing & BI: I am proficient in Google BigQuery for data storage and analysis, and I design and manage high-impact, interactive dashboards using Looker Studio (formerly Google Data Studio) and Power BI.
• Key Achievement: At my previous role as Head of Data and Analytics, I developed automated ETL scripts and no-code flows that reduced manual data processing time and created a critical email alert system based on custom performance triggers.

I help businesses gain real-time visibility and operational stability by focusing on:

1. End-to-End ETL Automation: Setting up reliable pipelines to pull data from digital marketing (GTM, GA4, Merchant Center) and e-commerce platforms (Shopify) into a central warehouse like BigQuery.
2. Custom BI Dashboarding: Developing clear, executive-level reporting and visualizations that translate complex data into digestible strategic insights.
3. Process Optimization: Analyzing existing data workflows and implementing improvements that increase reporting accuracy and speed.
4. Performance Monitoring & Alerting: Creating systems for proactive tracking of key metrics (KPI reporting) with automated alerts to ensure immediate response to critical deviations.

Ready to turn your complex data into a clear, automated advantage? Let's discuss how my blend of technical and business intelligence expertise can streamline your data operations.