mani Chowdary

mani Chowdary

Data Analyst

Vijayawada, IndiaData Analytics
5roles
80skills
2education
6credentials

About

Results-driven Data Analyst with 1+ year of hands-on experience in statistical analysis, machine learning, data validation, and business intelligence reporting.

Experience

Data Analytics intern

Innovexis

6 mos

Data Analyst

Neonsoft Technologies

4 mos

Data Analyst

NullClass

5 mos

Data Analyst Intern

ExcelR

Jul 2025 – Dec 2025 · India

Performed exploratory data analysis and quantitative analysis on datasets exceeding 100K records, improving data quality and reporting accuracy by 20%; built supervised machine learning models for anomaly detection and predictive analytics with 85%+ model accuracy; conducted root cause analysis and implemented automated data validation and reconciliation frameworks; designed interactive KPI dashboards in Power BI using DAX and Power Query; collaborated with engineering, product, and finance teams; automated ETL workflows and reporting pipelines using Python, reducing manual processing effort by 35%.

Data Analytics Trainee

Null Class

Aug 2024 – Dec 2024 · India

Executed SQL-based ETL on large relational databases; applied K-Means Clustering for customer segmentation; performed data wrangling and cleaning using Python; supported data reconciliation and compliance reporting workflows, reducing manual errors by 25%; created Power BI and Excel dashboards for non-technical stakeholders.

Education

Nimra college of engineering and technology

Bachelor of Technology, Data science

Oct 2021 - Apr 2025

Nimra College of Engineering and Technology

Bachelor of Technology, Data Science

2022 – 2026 (Expected)

CGPA: 7.86 / 10. Relevant coursework: Statistical Analysis, Data Mining, Database Management Systems, Machine Learning, Business Intelligence, Data Modeling, Probability & Statistics, Data Warehousing.

Skills

Python (Programming Language)SQLMicrosoft ExcelMicrosoft Power BIIBM SPSSPandas (Software)Predictive ModelingData AnalysisNumPyData VisualizationPythonPandasScikit-learnMatplotlibSeabornNLTKJoinsAggregationsSubqueriesCTEsWindow FunctionsRPower BIDAXPower QueryData ModelingVLOOKUPHLOOKUPPivot TablesPower PivotAdvanced FormulasPlotlyIBM SPSS StatisticsDescriptive StatisticsRegressionANOVAFactor AnalysisHypothesis TestingStatistical Process ControlA/B TestingExperimental DesignLinear RegressionLogistic RegressionDecision TreesRandom ForestXGBoostK-Means ClusteringDBSCANNLPSentiment AnalysisTopic ModelingLDAAnomaly DetectionFeature EngineeringHyperparameter TuningCross-ValidationETL ProcessesData CleaningData WranglingData ValidationData ReconciliationData Quality AssuranceData GovernanceData Pipeline DesignMySQLPostgreSQLMicrosoft SQL ServerGoogle BigQueryAzureJupyter NotebookGoogle ColabVS CodeGitGitHubStatistical AnalysisPredictive AnalyticsMachine LearningBusiness IntelligenceKPI ReportingRoot Cause Analysis

Projects

AI-Powered Customer Sentiment & Churn Analytics Dashboard

Engineered an end-to-end NLP pipeline for 50K+ customer reviews using VADER and Transformer-based models with 91% classification accuracy; integrated OpenAI GPT API for complaint summaries; developed XGBoost and Random Forest churn prediction with 88% predictive accuracy; applied LDA topic modeling; designed a real-time Power BI dashboard for churn risk, sentiment trends, and customer segments.

Credit Portfolio Risk Analysis

Performed EDA and statistical analysis using IBM SPSS and Python; built Logistic Regression and Decision Tree classifiers for credit risk scoring; applied K-Means Clustering for borrower segmentation; designed KPI frameworks and Power BI dashboards for portfolio health, default probability, and risk distribution.