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Chethan User

@chethanuser

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I build reliable cloud data pipelines, warehouses, and analytics systems using Python, Spark, dbt, and Airflow.

India

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What I'm looking for

I'm looking to build reliable data pipelines, warehouses, and lakehouse systems while contributing to collaborative teams, open-source workflows, and data-driven problem-solving.

I've built an e-commerce sales warehouse and analytics pipeline with a star schema, 12+ Airflow DAGs, SCD Type 2 loading, and dbt transformations. My work reduced query execution time by 65% and supported KPI dashboards for revenue, customer segmentation, and product performance.

I've also developed a cloud lakehouse using PySpark, dbt, Great Expectations, and Airflow, eliminating roughly 12% duplicate raw records and enforcing 15+ data contracts. Alongside data engineering, I contribute to NASA OSDR research and open-source projects, and have coordinated large-scale tech events for 100+ attendees.

Experience

Work history, roles, and key accomplishments

Data Engineer

Null Point

Coordinated and executed tech events and hackathons end-to-end, managing logistics, schedules, and participant communication for 100+ attendees. Led sponsorship outreach and acquisition, negotiating with external partners to secure funding and resources for multiple large-scale events.

Project Management Event Planning Sponsorship Team Leadership Communication Resources