Hasan Santosa

I am a Data Visualization, Data Automation, and CRM Specialist with over 12 years of professional experience helping businesses transform raw data into clear, actionable insights and fully automated systems.

Throughout my career, I have worked with a wide range of clients across different industries including finance, real estate, e-commerce, hospitality, and service-based businesses. My focus is always on building efficient, scalable, and easy-to-use data systems that improve decision-making and operational performance.

📊 What I Do Best

I specialize in turning complex data into simple, powerful business tools such as:

Interactive dashboards (Excel, Google Sheets, Looker Studio)
Data automation systems using formulas, scripts, and workflows
CRM setup and optimization for lead tracking, sales, and customer management
Business reporting systems for profit tracking, inventory, sales, and operations
Integration of data from multiple sources into one centralized system
⚙️ Skills & Tools
Advanced Excel (Power Query, Pivot, VBA)
Google Sheets Automation (Apps Script, formulas, dashboards)
CRM Systems (custom CRM, HubSpot-style tracking, Airtable-based systems)
Apps Script & Workflow Automation
Data Visualization & Business Intelligence (BI dashboards)
API integration & data syncing
Reporting system design for management & clients