Adhithiyabala Nallathambi
Data Analyst | SQL | Python | Power BI | Azure Databricks | AWS Redshift | Data Visualization | Turning Data into Business Insights
- Role
- Data Analyst at Tata Consultancy Services
- Location
- Chennai, TN, IN
- LinkedIn followers
- 500 followers
About Adhithiyabala Nallathambi
Data Analyst with 3.8+ years of experience in transforming complex datasets into actionable business insights.Currently working at TCS, where I analyze and process large-scale data using SQL, Python, Azure Databricks, and AWS Redshift. I specialize in building interactive dashboards and reports using Power BI that enable stakeholders and leadership teams to make data-driven decisions.My experience includes:• Data transformation and analysis using SQL and Spark SQL• Data processing and optimization in Azure Databricks• Building interactive dashboards and KPIs in Power BI• Performing exploratory data analysis to identify patterns and trends• Delivering insights to business stakeholdersI enjoy solving business problems with data and continuously improving my skills in advanced analytics and data science.Tools & Technologies:SQL | Python | Power BI | Tableau | Azure Databricks | AWS Redshift | Excel | Git | Data Visualization | Data Cleaning | Exploratory Data AnalysisCurrently expanding my expertise in data science and machine learning.
Experience
Data Analyst
Aug 2022 — Present
Data Analyst – TCSClient: PepsiCo• Consolidated data from multiple source systems into Azure Databricks Delta tables to create a centralized analytics dataset• Optimized Spark SQL queries using partitioning and Delta Lake optimization, improving data retrieval efficiency• Developed interactive Power BI dashboards to track key business metrics and support leadership decision-making• Built custom KPIs and visualizations to present actionable insights to stakeholders• Managed SQL-based data transformation pipelines with version control using GitHub• Collaborated with cross-functional teams in Agile environments and facilitated Scrum calls with vendor teamsClient: Croma• Built interactive Power BI dashboards using AWS Redshift data sources• Conducted exploratory data analysis to identify trends and anomalies in business datasets• Delivered insights and reports for management decision-making
Education
KSR INSTITUTE FOR ENGINEERING AND TECHNOLOGY, NAMAKKAL
Bachelor of Technology - BTech, Information Technology
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