Data Analytics Specialist 7+ Years

Hi, I'm Durga S Tummalapalli

Results-driven Data Analytics Engineer with 7 years of experience in Business Intelligence, Data Engineering, and Cloud Data migration with ETL. I transform complex data into actionable insights for Business impact.

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7+
Years Experience
50+
BI Dashboards
80%
Efficiency Gain
DS

Durga S Tummalapalli

United States

Quantitative Impact

60%

Efficiency Gain

99.5%

Data Accuracy

70%

Reporting Boost

80%

Data Reliability

90%

Sprint Delivery

50%

Time Reduction

Key Achievements

Enterprise BI Migration Excellence

Led Qlik Sense to Microsoft Fabric migration delivering 60% performance improvement while maintaining zero downtime

High-Accuracy Data Pipelines

Achieved 99.5% accuracy across 30+ automated pipelines processing multi-source datasets for finance and operations

Executive Decision Support

Developed 30+ Power BI dashboards enabling KPI-driven executive decisions for quarterly earnings reporting

Process Automation Impact

Automated 50+ SQL workflows reducing manual reporting by 40% and accelerating decision-making cycles

Agile Team Leadership

Delivered 90% on-time sprint completion through effective Agile leadership and cross-functional collaboration

Cloud Architecture Optimization

Architected end-to-end ETL pipelines migrating on-premises data to AWS, improving reliability by 80%

Core Skills

Programming

SQL Python PySpark DAX Pandas

Cloud Platforms

AWS S3 Azure Data Factory Databricks Microsoft Fabric Snowflake

BI & Visualization

Power BI Tableau Qlik Sense

Databases

IBM db2 MS SQL Server MySQL Oracle

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ATS

ATS Resume Scanner

AI-powered resume analysis system that optimizes CVs for Applicant Tracking Systems using NLP and pattern recognition.

NLP Python ML
H1B

H1-B Insight Hub

Data visualization dashboard providing comprehensive insights into H1-B visa trends, statistics, and patterns.

Data Viz Analytics D3.js
SB

Starbucks Sales Prediction

Machine learning model forecasting Starbucks sales using historical data, promotions, and customer demographics.

ML Regression Time Series
BI

Power BI Portfolio

Showcase of interactive dashboards, KPIs, DAX measures, and custom metrics driving business decision-making.

Power BI DAX Analytics
GW

Google AI Data Challenge

Google's Women Techmakers presents She Builds AI

Python_web_Scraping SQL Gemini_Model
MTA

MTA Data Challenge

MTA Data Challenge project analyzes public transit data from the Metropolitan Transportation Authority (MTA) to uncover insights into subway ridership patterns.

Python_Pandas SqLite Power_BI
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Professional Experience

Lead Data Analytics Engineer

Blue Bird Corporation

Jan 2024 - Present
30+

Automated ETL pipelines with 99.5% accuracy

60%

Efficiency gain from Qlik to Fabric migration

70%

Reporting efficiency boost via DAX & SQL

80%

Improved metrics with star schema design

  • Built 30+ Power BI dashboards for executive KPIs and quarterly earnings
  • Architected end-to-end ETL pipelines migrating on-prem data to AWS S3/Athena
  • Reduced report refresh time by 50% through SQL query optimization

Senior Data Engineer

Micron Technology

Dec 2019 - Aug 2022
20+

Tableau dashboards for supply chain KPIs

90%

Improved master data governance

50+

Automated SQL reporting workflows

40%

Faster Snowflake data processing

  • Built scalable ETL pipelines on Snowflake improving data accuracy by 99%
  • Mentored junior engineers boosting team productivity by 65%
  • Optimized ETL workflows reducing daily runtime by 50%

Business Intelligence Developer

Vervint

May 2023 - Oct 2023
15+

Power BI dashboards delivered

70%

Increased data reliability

  • Built 15+ dashboards with advanced DAX reducing ad hoc reporting cycles
  • Streamlined ERP workflows reducing integration effort by 40%

Data Analyst

Exusia, Inc

Jul 2018 - Dec 2019
18%

Cut in non-compliant operations

35%

Boost in cost efficiency

  • Detected cost leakages through SQL analysis saving 18% in operations
  • Built executive Tableau dashboards driving 35% visibility boost