Vishnu Saravanan

Data Analyst with 4.9 years of experience delivering scalable Business Intelligence (BI) solutions across Telecommunications, Insurance, Sales, and Finance domains. Expertise in data modeling, ETL pipelines, and dashboard development using Power BI, advanced DAX, SQL and Excel. Skilled in performance optimization, ETL automation, and implementing secure BI solutions.

Proven ability to translate complex business requirements into intuitive dashboards and actionable insights, enabling data-driven decision-making for enterprise stakeholders and 400+ users.

Data Analyst | Power BI Developer at ACSASS (2021-06 – 2026-03)

• Developed 15+ interactive Power BI dashboards supporting 200+ stakeholders across Telecommunications, Insurance, Sales, and Finance domains, improving decision-making efficiency by 30% and saving 8 hours per week through enhanced data visualization and reporting.
• Automated ETL pipelines using Power Query and SSIS, eliminating 12 hours of manual work weekly and reducing reporting errors by 40% across three data workflows.
• Designed and implemented star-schema data models handling 5+ million records, improving query performance by 45% and reducing report load time from 60 to 33 seconds.
• Developed 25+ advanced DAX measures (Forecast Accuracy, Fill Rate, YoY Growth, Channel Performance Index) to enable tracking and analysis of $50M+ in business KPIs.
• Implemented Row-Level Security (RLS) and data governance practices across 8 dashboards, securely managing data access for 500+ users across 12 departments and 4 regions.
• Optimized Power BI dashboards and data models, reducing report load time by 35%.
• Delivered end-to-end BI solutions with 99% data availability, increasing self-service adoption by 35%.

MCA – University of Madras (2024)

BCA – Thiruthangal Nadar College (2020)