Phani
DATA ANALYST/ENGINEER || Graduate Student at George Mason University || Ex-Cognizant
- Role
- Data Engineer at Htms Inc
- Location
- Fairfax, VA, US
- LinkedIn followers
- 500 followers
Experience
Data Engineer
Feb 2025 — Present · Sterling, VA, US
Engineered and optimized 20+ complex SQL queries for AWS Athena, improving query performance by 40% and reducing cloud compute costs by 25%.Mapped and validated 100+ data fields from AWS S3 Data Lake to business logic requirements, ensuring 100% accuracy for analytics and reporting deliverables.Developed a pre-deployment data validation framework, decreasing QA defect rates by 30% and accelerating sprint sign-offs.Automated data ingestion pipelines for large-scale datasets in AWS S3, enhancing data availability timelines by 35% across multiple Agile sprints.Collaborated with QA and Data Analysts to troubleshoot and resolve 50+ failed test cases by debugging joins, addressing schema mismatches, and applying partition pruning.Implemented AWS Athena optimization strategies (Parquet format, compression, bucketing), reducing query scan size by 60% and improving cost efficiency.Coordinated deliverables in a Scrum-based Agile environment, ensuring timely development-to-QA handoffs within the first week of each sprint
Education
Sri Chaitanya College of Education
Intermediate
2015 — 2017
Gitanjali Group of Schools
10 Class
2014 — 2015
Gokaraju Rangaraju Institute of Engineering and Technology
Bachelor of Technology - BTech
2017 — 2021
George Mason University
Master of Science - MS
2023 — 2024
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