I help small businesses uncover the hidden stories in their data and processes.

I'm María Elsa Fariñas Farrera, an economist turned data analyst and virtual assistant. After years working in administrative areas, I discovered a constant pattern: too much data, little analysis, and decisions made in the dark. In 2020, I decided to change that. I specialized in data analysis with Power BI, and since then I've been helping small businesses and entrepreneurs transform confusion into clarity. I design simple, visual and actionable dashboards that show what really matters: what works, what doesn't and where the bottleneck is. I don't believe in reports that impress, but in tools that drive smart decisions. At dataMEFF, I combine data analysis, automation and executive support so you can focus on growing, not on organizing files. I'm passionate about turning chaotic data into clear strategies, integrating AI and organization to free up time and reveal opportunities. And when I'm not between graphs and metrics, I'm probably with a coffee in hand, exploring the latest trends in artificial intelligence and business analytics. If you have data but no clarity, maybe I can help you connect the dots.

Where data meets coffee ☕ — Because the best insights are brewed with patience, precision, and passion.




















Tailored solutions for your business needs
Automate repetitive tasks and streamline your workflows with custom automation solutions.
Deep dive into your business processes to identify bottlenecks and optimization opportunities.
Interactive dashboards that transform complex data into clear, actionable insights.
Strategic guidance on data strategy, BI implementation, and analytics best practices.
Recent projects and success stories

Interactive dashboard for ticket monitoring, response times and technical support metrics.

Detailed sales analysis, team performance, trends and revenue forecasts.

Comprehensive sports product sales report with category and regional segmentation.
Insights, tips, and data stories
Learn the fundamentals of Power BI and how to create your first interactive dashboard.
Discover the most common mistakes analysts make and how to avoid them.
How to use Python to automate report generation and save hours of work.
Templates, guides, and tools to help you get started