Dharshan Challa

Experience

1. Sr Tableau Developer Admin

   Cisco

   Apr 2022 — Present

   Designed, developed, tested, and maintained Tableau functional reports based on user requirements. • Mastered the ability to design and deploy rich Graphic visualizations with Drill Down and Drop-down menu option and Parameters using Tableau. • Worked closely with business stakeholders to define requirements to support strategic and tactical decision-making. • Involved in creating database objects like tables, views, procedures, triggers, functions using Hana Studio to provide definition, structure and to maintain data efficiently. • Extensively involved in creating graphs by using measures and dimensions data from various databases by using data blending concept. • Created different KPI using calculated key figures and parameters. • Developed Tableau data visualization using Cross tabs, Heat maps, Box and Whisker charts, Scatter Plots, Geographic Map, Pie Charts and Bar Charts and Density Chart. • Worked with Java team to configure reports to the application. • Worked on all type of projects developing dashboard from scratch, enhancing the existing dashboards and migrating reports. • Developed donut charts and implemented complex features in charts like creating bar charts in tooltip. • Streamline multiple performance issues and implement best process distribution for 2+ projects, facilitating power users in Tableau dashboard development. • Worked extensively with Advance analysis Actions, Calculations, Parameters, Background images, Maps, Trend Lines, Statistics and table calculations. • Design and apply KPIs, dashboards and operational metrics using PerformancePoint Server – publishing them via Tableau to enable KPIs tracking in a real-time. • Responsible for creating calculated fields, combine field, bins, sets, geo coding and hierarchies using Tableau Desktop. • Involved in creating a dual-axis bar chart with multiple measures. • Implemented data blending to blend related data from different data sources.