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Tarun Reddy Narella

@tarunreddynarella

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I build secure, scalable cloud data platforms and pipelines for billions of records and real-time analytics.

United States

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What I'm looking for

I'm looking to build secure, reliable cloud data platforms, improve engineering standards, and solve complex ingestion and orchestration challenges with collaborative technical teams.

At Hexaware Technologies, I build medallion data platforms with Databricks Workflows and Microsoft Fabric for regulated data environments.

I've implemented incremental and change-data-capture ingestion using Delta MERGE and idempotent retries, maintaining controlled updates and consistency across more than 2 billion records. I also integrate REST APIs with OAuth2, secrets management, pagination, rate limiting, and schema-drift handling for unattended production ingestion.

Previously at 9th Networks, I built AWS S3 and Glue pipelines processing more than 10 million utility telemetry records daily, plus Kafka and Amazon MSK streams delivering 5,000+ events per hour. I improved Snowflake ingestion error rates by 30% and reduced deployment time by 40% through Docker and CI/CD standardization.

I bring Python, SQL, PySpark, cloud data engineering, and a practical focus on secure MCP servers, engineering standards, and collaborative technical reviews. At the University of Colorado Denver, I also mentored more than 20 students in Python and supported reproducible research workflows.

Experience

Work history, roles, and key accomplishments

Current

Data Engineer

Current

Hexaware Technologies

Jul 2024 - Present (2 years 2 months)

Implemented medallion architecture using Databricks Workflows and executed incremental and change-data-capture ingestion with Delta MERGE for over 2 billion records. Authored engineering standards and led review sessions to drive adoption of best practices.

Databricks PySpark Python SQL Delta Lake Delta MERGE (Upsert)Medallion Architecture REST APIs OAuth Microsoft Fabric Azure Data Factory Azure Synapse Azure DevOps CI CD Infrastructure as Code MCP Server Development Secrets Management Schema Drift Handling Data Isolation

Graduate Student Assistant

University of Colorado Denver

Jan 2023 - May 2024 (1 year 4 months)

Supported reproducible Python notebooks and developed Python components following MCP server principles. Mentored 20+ students in Python programming and validated experimental model outputs using Python and SQL.

Python SQL Git MCP Server Development Scoping Error Handling Mentorship Research

Data Engineer

9th Networks Inc

Aug 2020 - Aug 2022 (2 years)

Built batch data pipelines using AWS S3 and AWS Glue processing over 10 million utility telemetry records daily. Implemented Snowflake Snowpipe ingestion and developed Apache Kafka streaming pipelines for real-time event delivery.