Summary
Overview
Work History
Skills
Timeline
Generic

Rahul Bellapukonda

Summary

Senior Data Engineer with 11+ years of experience designing and delivering scalable ETL pipelines and cloud-based data platforms. Strong expertise in Python, SQL, PySpark, Apache Airflow, AWS, and Snowflake, with a proven ability to transform complex data into reliable, analytics-ready datasets. Collaborative problem-solver with deep experience supporting BI, and data-driven decision-making across enterprise teams.

Overview

12
12
years of professional experience

Work History

Senior Data Engineer

Cigna
Philadelphia
06.2023 - Current
  • Designed and architected scalable ETL/ELT pipelines on AWS and GCP.
  • Built AWS Glue and PySpark jobs to ingest and transform large datasets into Snowflake and Redshift.
  • Developed Python scripts for processing XML, JSON, and CSV data from REST APIs.
  • Implemented Apache Airflow workflows, optimized performance, and built Tableau dashboards for analytics.

Data Engineer

Morgan Stanley
New York
09.2021 - 05.2023
  • Developed complex ETL mappings using Informatica PowerCenter and Spark.
  • Built automated ingestion pipelines using Python, Airflow, AWS EMR, and GCP Dataproc.
  • Migrated on-premise data warehouses to AWS Redshift and GCP BigQuery and optimized SQL performance.

Data Engineer

Truist Financial
Charlotte
10.2019 - 08.2021
  • Designed ETL pipelines using SSIS and AWS services.
  • Migrated Oracle and Greenplum data warehouses to AWS Redshift.
  • Developed Spark and PySpark applications and built Power BI dashboards.

Data Engineer

Best Buy
Richfield
03.2017 - 09.2019
  • Designed ETL strategies using Talend and Hadoop ecosystem.
  • Built Spark jobs for batch processing and analytics and developed Tableau dashboards.

SQL Data Engineer

Best Buy
Richfield
10.2013 - 02.2017
  • Designed relational databases and ETL pipelines using SSIS.
  • Developed complex T-SQL scripts, stored procedures, and supported reporting and analytics.

Skills

Programming & Query Languages
  • Python
  • SQL (T-SQL, PL/SQL)
  • PySpark
Data Engineering & Big Data
  • Apache Spark
  • Spark SQL
  • Apache Airflow
  • Apache Kafka
Cloud & Data Platforms
  • AWS (Glue, S3, EC2, Redshift)
  • Snowflake
ETL & Data Integration
  • Informatica PowerCenter
  • Talend
Databases & Data Warehouses
  • Oracle
  • SQL Server
  • PostgreSQL
  • Amazon Redshift
  • Snowflake
BI & Visualization
  • Tableau
  • Power BI

Timeline

Senior Data Engineer

Cigna
06.2023 - Current

Data Engineer

Morgan Stanley
09.2021 - 05.2023

Data Engineer

Truist Financial
10.2019 - 08.2021

Data Engineer

Best Buy
03.2017 - 09.2019

SQL Data Engineer

Best Buy
10.2013 - 02.2017
Rahul Bellapukonda