Roopan David

An Extremely Enthusiastic professional with experience, To establish myself as a successful individual working at responsible position in a reputed company where I can utilize my skills and knowledge to the optimum. Bringing forth the ability to synthesize quantitative information and interact effectively with colleagues and clients.

Tableau Developer at HCL Technologies (2023-08 – Present)

• Attending Scrum daily meeting to get updates and activities.
• Ensure adherence to organizational guidelines, standards, and processes.
• Work on Tableau reporting, including ETL (Extract, Transform, Load) processes.
• Demonstrate strong understanding of managing Tableau groups, projects, workbooks, and data connections.
• Write and optimize SQL and Advanced SQL queries for data analysis and reporting.
• Manage and maintain Tableau Server environments effectively.
• Continuously review dashboards and analyses to identify opportunities for more efficient data gathering, summarization, and analysis techniques.

Tableau Developer at Analytical Wizards (2020-03 – 2023-07)

• Migrated business reports and dashboards from Microsoft Power BI to Tableau Desktop based on user and business requirements.
• Imported and transformed data from multiple source systems using Tableau Prep, ensuring data quality, profiling accuracy, and adherence to ETL and business validation rules.
• Developed efficient data models and established relationships between multiple datasets to support scalable and high-performance dashboard reporting.
• Created customized and interactive dashboards featuring Lollipop Charts, Donut Charts, Bar Graphs, Tree Maps, Pie Charts, and Waterfall Charts for analytical and executive reporting.
• Designed drill-down and drill-through reports with focused visualizations using filters, hierarchies, calculated measures, and parameters to improve user interaction and business analysis.
• Performed report testing and validation with end users, coordinated with cross-functional teams for requirement clarification, and published finalized dashboards to Tableau Server for enterprise-wide access.
• Built and maintained data preparation workflows in Tableau Prep by integrating multiple source systems, cleansing data, applying business rules, and creating relationships between datasets.
• Designed KPI dashboards using visualizations such as Bar Charts, Scatter Plots, Pie Charts, Density Maps, Donut Charts, Tree Maps, and Waterfall Charts to represent business trends and performance metrics.
• Created calculated fields, conditional columns, measures, groups, hierarchies, and sorting techniques to develop dynamic drill-down and drill-through reports based on business requirements.
• Collaborated with clients and internal stakeholders to gather visualization requirements, conduct requirement analysis meetings, validate reports with end users, and implement periodic dashboard enhancements.
• Published and managed reports on Tableau Server while providing secure user access and supporting collaborative analytics across teams.

– Madurai Kamaraj University (2011 – 2014)