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Atul Sawai

@atulsawai

Senior Data Engineer at HD Supply improving Snowflake and dbt supply chain analytics, including 25% faster query performance.

India

Message

At HD Supply, I engineer and optimize Snowflake and dbt models for OTIF, supply chain, and commercial analytics. These improvements raised query performance by 25%.

I also designed and maintained end-to-end OTIF pipelines using Python, SQL, dbt, and Snowflake. CDC-based incremental processing reduced processing time by about 30%.

At GIST Impact, I built data pipelines and an ESG ingestion and analytics framework using Python, Snowflake, and AWS services. I also developed automated data quality checks and optimized Snowflake workloads and Tableau dashboards and APIs.

At SAAMA Technology, I developed commercial pharmaceutical pipelines integrating sales, CRM, and product data. In the EcoBot++ project, I built an ESG-focused RAG/LLM application to extract and query insights from sustainability reports.

Experience

Work history, roles, and key accomplishments

Current

Sr. Data Engineer

Current

HD Supply

Sep 2025 - Present (1 year 2 months)

Engineered and optimized Snowflake and dbt data models supporting OTIF, supply chain, and commercial analytics, improving query performance by 25%. Designed and maintained end-to-end ETL/ELT pipelines for OTIF using Python, SQL, dbt, and Snowflake, including CDC-based incremental data processing, reducing processing time by ~30%.

DBT Snowflake Administration Data Modeling Python Azure Tableau Data Analysis ETL ELT CDC SQL

Data Engineer (SDE-2)

GIST Impact

Sep 2022 - Sep 2025 (3 years)

Built end-to-end data pipelines using Snowflake, Python, AWS Glue, Lambda, DMS, and Tableau for scalable analytics and reporting. Led Snowflake administration, including RBAC, warehouse optimization, Snowpipe, Streams, Tasks, monitoring, and data sharing.

Python Snowflake MySQL PostgreSQL AWS Glue Lambda AWS DMS S3 Airflow PySpark Snowflake Administration RBAC Snowpipe Streaming Task Data Sharing ETL ELT CDC Tableau

Associate Data Engineer

SAAMA Technology

Jan 2021 - Sep 2022 (1 year 8 months)

Delivered advanced data engineering solutions to support commercial pharma analytics, enabling business users to monitor territory performance, optimize sales strategies, and reduce operational overheads. Developed commercial pharmaceutical data pipelines using Matillion, Python, and Snowflake, integrating sales, CRM, and product data for commercial analytics.