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Mahesh TanniruMT
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Mahesh Tanniru

@maheshtanniru

Data Engineer at PTC building Snowflake ELT pipelines with 99%+ reliability.

United States
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What I'm looking for

I am looking for a full-time Data Analyst or Data Engineer opportunity where I can apply my 4+ years of experience in SQL, Python, Snowflake, AWS, Azure, ETL/ELT, and Power BI. I am interested in working on challenging data projects, building reliable data solutions, improving business insights, and growing my technical skills while contributing to a collaborative team.

At PTC, I designed cloud-native ELT pipelines using Snowflake, Airflow, dbt, Python, and AWS to bring together manufacturing and enterprise data. My Airflow workflows included monitoring, alerting, and recovery mechanisms, achieving 99%+ pipeline reliability.

At Johnson & Johnson, I built data pipelines integrating clinical, commercial, and supply chain datasets, and helped modernize legacy ETL into modular ELT architectures. I also developed automated data validation and quality monitoring for healthcare datasets.

At Magna Infotech, I developed ELT pipelines for operational, retail, and e-commerce data in Amazon Redshift. In my capstone projects, I built a healthcare data lake platform for claims records and developed a Kafka-driven streaming analytics solution for near real-time reporting.

Experience

Work history, roles, and key accomplishments

PTC logoPT
Current

Data Engineer

Jan 2026 - Present (9 months)

Designed and implemented cloud-native ELT pipelines using Snowflake, Airflow, dbt, Python, and AWS to integrate product lifecycle management, manufacturing, and enterprise operational datasets. Developed scalable ingestion frameworks and automated testing, reducing manual data processing efforts by over 40%.

Johnson & Johnson logoJJ

Data Engineer Intern

Feb 2025 - Dec 2025 (10 months)

Built enterprise-scale data pipelines using Snowflake, Airflow, dbt, Python, and AWS integrating clinical, commercial, and supply chain datasets. Modernized legacy ETL processes into modular ELT architectures and developed automated data validation frameworks.

MI

Data Engineer

Magna Infotech

Apr 2020 - Dec 2022 (2 years 8 months)

Developed ELT pipelines integrating operational, retail, and e-commerce data into Amazon Redshift supporting enterprise reporting and executive dashboards. Implemented Airflow orchestration workflows with automated alerting and monitoring.

Education

Degrees, certifications, and relevant coursework

George Mason University logoGU

George Mason University

Master of Science, Data Analytics and Engineering

2023 - 2024

Pursued a Master of Science in Data Analytics and Engineering, focusing on data engineering, analytics, and cloud technologies.

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