Madhu Sainani

Data Analyst @Codebasics

London, GB

Analyzed and cleaned datasets containing 1.5+ million records using SQL, improving data accuracy by 25% and establishing standardized data quality protocols• Developed automated reporting solutions using Power Query, saving approximately 4-5 hours on report generation and resulting in 50% improvement in efficiency.• Built and optimized 25+ SQL queries and stored procedures for business intelligence reporting, leading to 15% enhancement in data retrieval accuracy• Created and maintained data documentation for 5 key processes, improving cross-team collaboration and reducing data-related queries by providing clear and accessible workflows