Aparna Sangapola
Power BI Developer
About
Results-driven Power BI Developer with 3+ years of experience designing and delivering enterprise-level dashboards, reports, and business intelligence solutions. Deep expertise in Power BI Desktop, DAX, Power Query (M Language), data modeling, SQL Server, and ETL processes. Adept at building interactive visualizations, KPI scorecards, and Row-Level Security (RLS) implementations. Proven ability to collaborate with business stakeholders, translate requirements into actionable analytical solutions, and drive data-informed decision-making across sales, operations, finance, and customer service domains.
Skills & Expertise (30)
Work Experience
Power BI Developer
WYNBI (Right Angle Solution)
Jan 2023 - Present
Designed, developed, and maintained interactive Power BI dashboards and reports for business stakeholders, enabling data-driven decision-making across sales, operations, finance, and customer service functions. Created and optimized data models using Star Schema and Snowflake Schema principles, establishing relationships between fact and dimension tables to improve report performance and scalability. Developed complex DAX measures, calculated columns, KPIs, and time intelligence calculations (YTD, MTD, QTD, Rolling Periods) to support advanced business analytics requirements. Utilized Power Query (M Language) to perform data extraction, cleansing, transformation, and integration from multiple sources including SQL Server, Excel, SharePoint, CSV files, APIs, and cloud platforms. Implemented Row-Level Security (RLS) and workspace-based access controls to ensure secure data access and compliance with organizational governance policies. Built drill-through reports, bookmarks, dynamic slicers, tooltips, and interactive visualizations to enhance user experience and enable detailed data exploration. Published and managed reports in Power BI Service; configured scheduled refreshes via On-Premises Data Gateway and monitored dataset performance and refresh failures. Integrated Power BI reports with Microsoft Power Platform (Power Apps, Power Automate, Power Pages) to streamline business processes and reporting workflows. Performed report optimization by reducing model size, improving DAX performance, and implementing best practices for data modeling and visualization. Developed executive KPI dashboards tracking key business metrics, improving visibility into operational performance and accelerating strategic decision-making. Supported end-to-end BI lifecycle including requirement gathering, data validation, UAT support, deployment, documentation, and post-production maintenance.
Power BI Developer
Right Angle Solutions
Jan 18 - Present
Developed and maintained business reports using DevExpress Reporting tools, creating tabular, summary, and parameter-driven reports based on stakeholder requirements. Designed and optimized SQL queries, stored procedures, and datasets to support report generation and improve overall report performance. Implemented report parameters, filtering mechanisms, grouping, and drill-down functionality to deliver flexible and user-friendly reporting solutions. Collaborated with business users to gather reporting requirements, validate outputs, and ensure data accuracy across operational and management reports. Performed report enhancements, troubleshooting, and production support activities to ensure timely delivery and high-quality reporting solutions.
Education
Bachelor of Technology – Computer Science & Engineering - Sri Indu Institute of Engineering and Technology, JNTUH
2018 - 2022 · Afghanistan
Certifications
Microsoft Certified Power BI Data Analyst associate
Microsoft · 2027
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Skills (30)
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