Welcome To
Data With Roger
About
Transforming Data into Decisions
I’m Roger Sevilla. Welcome to Data With Roger—my portfolio showcasing expertise in Data Analytics, Data Science, and Big Data. With over 20 years in technology, I specialize in data migrations, system integrations, advanced analytics, and custom dashboards that turn raw data into insights.
Using industry-leading tools like Tableau, Power BI, Python, R, and SQL (Oracle, SQL Server, PostgreSQL, MySQL), I focus on delivering precise, data-driven solutions that generate impactful results.
Let’s unlock the full potential of your data—Explore my projects to see how I can help you drive business growth and innovation.
Services
Transforming Data into Clear Insights
Advanced Data Analytics
Provide strategic guidance in data analytics, helping companies establish effective analytical processes. I also train teams on essential tools like Tableau and Power BI.
Interactive Dashboards & Visualization
Design interactive and visual dashboards that simplify complex metrics. Using tools like Tableau and Power BI, I create visualizations that highlight the essential information for strategic decisions.
ETL (Extract, Transform, Load)
Streamline and optimize data workflows with advanced ETL techniques. From data extraction to loading into analytics platforms, I ensure accuracy and efficiency at every stage.
Database Management
Administer and optimize professional databases in Oracle, SQL Server, PostgreSQL, and MySQL. From initial configuration to ongoing optimization, I ensure your data is secure, efficient, and accessible.
Data Migrations, System Integrations and Custom Implementation
Seamlessly migrate and integrate data across platforms with precision. From secure data transfers to customized implementations, I optimize your infrastructure to ensure smooth communication and efficient data management at every stage.
Turn raw data into actionable insights with advanced analytics, enabling precise, data-driven decisions.
Projects
Navigating the Data Wilderness to Uncover Key Insights

Database Integration
Seamless and secure integration of data between platforms (Oracle, PostgreSQL, SQL Server, MySQL), ensuring efficient communication with no data loss.

Automated ETL
Optimization of data workflows with advanced ETL techniques. From data extraction to loading into analytics platforms, ensuring accuracy and efficiency at every stage.

Interactive Dashboard
Development of interactive dashboards in Tableau and Power BI, enabling the visualization of KPIs and trends, enhancing real-time decision-making.