Open to opportunities

SAI VISHNU VARDHAN

@saivishnuvardhan

Senior Data Analyst specializing in healthcare and retail analytics to automate reporting and drive data-backed decisions.

United States

Message

What I'm looking for

I’m looking for a role where I can automate reporting, build executive dashboards, and use SQL, Python, and ETL/ELT to uncover trends and improve data quality—while partnering closely with stakeholders to drive measurable operational efficiency.

I’m a Senior Data Analyst with 5+ years of experience working with large-scale healthcare and retail data to uncover utilization trends, care gaps, and cost drivers. I build executive-facing Power BI dashboards, optimize SQL queries and transformation processes, and improve data quality to strengthen reporting accuracy and operational decision-making.

At Humana, I automated recurring SQL-based reporting workflows, reducing report preparation time by 50% and improving report performance by 35%. Earlier, at Cognizant Technology Solutions, I analyzed 5M+ retail transactions daily, designed scalable ETL pipelines, and developed forecasting/regression and customer segmentation models that improved inventory planning accuracy by 15% and boosted targeted engagement by 18%, while also reducing manual dashboard effort by 40%.

Experience

Work history, roles, and key accomplishments

Current

Sr. Data Analyst

Current

Humana

Jun 2025 - Present (1 year 1 month)

Used SQL and Python to analyze healthcare claims, member, and provider data and uncover utilization trends, care gaps, and cost drivers. Built executive Power BI dashboards, automated recurring SQL reporting, and improved data quality, query performance, and reporting accuracy.

SQL Python Power BI Data Quality Management Healthcare Claims Data Dashboard Development ETL data transformation Query Optimization

Teaching Assistant - Data Analytics

University of Houston Clear Lake

Jun 2024 - Dec 2025 (1 year 6 months)

Facilitated hands-on instruction in Python, SQL, machine learning, and data analytics for graduate students. Guided coursework across data cleaning, EDA, feature engineering, and predictive modeling using Pandas, scikit-learn, and PostgreSQL.

Python SQL Machine Learning Pandas scikit learn PostgreSQL Data Cleaning Feature Engineering predictive modeling Data Analytics

Data Analyst

Cognizant Technology Solutions India

Jan 2021 - Jan 2024 (3 years)

Analyzed large-scale retail transaction and customer records to uncover purchasing patterns and support merchandising and inventory planning. Built and maintained ETL pipelines, developed forecasting/regression models and customer segmentation/clustering models, and delivered interactive dashboards in Power BI and Looker.

S3 SQL Python PySpark AWS ETL Data Integration Data Validation Forecasting Regression Modeling Predictive Analytics Customer Segmentation Clustering Power BI Looker Amazon Redshift Amazon Athena AWS Glue Data Warehouse

Data Analyst

BitCare Solutions India

Jan 2020 - Nov 2020 (10 months)

Analyzed healthcare operational datasets to identify reporting gaps and improvement opportunities. Built SQL- and Spark-based ETL pipelines, automated dashboards and KPI reports, and performed data cleansing, validation, and transformation to improve accuracy and efficiency.