Arjun S

Arjun S

Data Analyst
India
Full-time Hybrid

About Me

Results-driven Data Analyst with 4+ years of experience in data extraction, transformation, analysis, visualization, and reporting. Strong hands-on skills in SQL, Power BI, Python, Excel, Tableau, Snowflake, and Azure Da…

Experience

Data Analyst

Avighna Systems Pvt. Ltd. · Chennai , Tamil Nadu , India
Mar 2022 - Present · 4 years 8 months

<p>Develop interactive Power BI and Tableau dashboards and reports to support business decision-making and stakeholder reporting.</p><p> Perform data cleaning, wrangling, transformation, validation, and quality checks across large datasets.</p><p> Build and optimize ETL pipelines using Azure Data Factory and Snowflake for automated data integration and centralized analytics.</p><p> Write complex SQL queries using joins, subqueries, CTEs, aggregations, and window functions for data extraction and analysis.</p><p> Use Python with Pandas and NumPy to automate data preparation and repetitive reporting activities.</p><p> Improve Excel-based reporting through Pivot Tables, VLOOKUP/XLOOKUP, advanced formulas, and automation.</p><p> Conduct descriptive and inferential analysis to identify trends, patterns, and business opportunities.</p><p> Gather requirements from business teams and translate reporting needs into data-driven solutions.</p><p> Create KPI dashboards and performance reports while monitoring data accuracy, consistency, and refresh quality.</p>

PROJECTS

Emblem Health

Healthcare Claims & Member Services Analytics
Duration : 01-Oct-2024 - 12-Oct-2026

<p>Healthcare analytics project focused on claims, member services, provider performance, operational reporting, and healthcare KPIs.</p>

Skills

Power BI Tableau Excel KPI Reporting Data Visualization Trend Analysis Python Pandas NumPy Matplotlib Seaborn MySQL Joins Subqueries CTEs Aggregations Window Functions Data Extraction Azure Data Factory Snowflake ETL Pipelines Data Integration Data Transformation Descriptive Statistics Inferential Statistics Hypothesis Testing Data Cleaning Data Wrangling Data Validation Requirement Gathering Reporting Automation SQL
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