Siva Kumar Mallemula
Associate IT Consultant at ITC Infotech | Microsoft Certified Power BI Developer | EX-Wipro | Python | Sql | Power BI | Etl | Data Modeling | Adf | Excel | Dax |
- Role
- Data Analyst at Wipro
- Location
- Bengaluru, KA, IN
- LinkedIn followers
- 500 followers
About Siva Kumar Mallemula
Experienced Data Analyst with 3.6 years of hands-on work in creative interactive dashboards and clear data visualizations. Skilled in Power BI Desktop, DAX, Power Query, SQL and data modeling to deliver actionable business insights. Known for turning complex information into simple that help teams make smart decisions. Skilled in collaborating with Cross-functional teams and end users to deliver impactful, data driven solutions in fast-paced environments.
Experience
Data Analyst
Apr 2022 — Present · IN
Designed and deployed Interactive Power BI dashboards for sales and finance teams improving decision efficiency by 30%.• Extracted, transformed, and loaded data from multiple sources including flat files, Excel and SQL server using Power Queryensuring clean and reliable datasets.• Crafted custom visualizations (bar, pie, card, funnel, table charts) with hierarchical drill-down capabilities and dynamic slicers,enhancing data exploration and stakeholder insights.• Built optimized Star-schema data models with precise relationships and advanced calculated/measures using DAX, improvingreport performance and clarity.• Implemented Row-Level-Security (RLS) and role-based access controls to restrict data visibility by user role ensuring data privacy• Utilized DAX functions for business logic implementation, improving reporting accuracy and reducing data discrepancies by 20%• Published and managed reports in Power B I Service, maintaining data governance, access control, and refresh schedules.• Optimized complex SQL 40+ queries using various Joins and Stored Procedures to improving query execution performance by anaverage of 30% and enhancing overall database query performance.• Experienced in writing SQL queries to retrieve and manipulate data from relational databases. Strong understanding of SQLfunctions, joins, Views, Window functions, Stored procedures and Subqueries.• Collaborated with Cross-functional teams to gather business requirements and deliver actionable insights for management reports.
Education
NBKR Institute of Science and Technology
Bachelor of Technology, Civil Engineering
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