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Mritunjay Kumar Tiwari

@mritunjaykumartiwari

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Data Engineer at Ayurs Infotech who migrated 30+ PostgreSQL tables to Snowflake, improving query performance by 40%.

India

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At Ayurs Infotech, I migrated 30+ tables from PostgreSQL on AWS RDS to Snowflake, using S3 as a staging layer and improving query performance by 40%. I also automated historical and incremental ingestion with Snowpipe, reducing manual intervention by 80%.

At Photon Softwares, I built batch ETL pipelines for Pizza Hut’s data normalization platform, encrypting customer PII with AES-256 and loading normalized data into AWS DynamoDB. I also optimized Python and Snowflake pipelines for the KFC team, improving reporting speed by 50%.

Experience

Work history, roles, and key accomplishments

Current

Software Development Engineer (Data Engineering)

Current

Ayurs Infotech

Jan 2025 - Present (1 year 9 months)

Migrated 30+ tables from PostgreSQL to Snowflake, improving query performance by 40%. Automated data ingestion with Snowpipe and built AWS Glue ETL pipelines for marketing data, reducing manual effort by up to 90%.

AWS S3 Glue Lambda Snowflake PostgreSQL Snowpipe ETL Data Migration DynamoDB SQL Server Python Pandas PySpark

Software Development Engineer

Photon Softwares

Jan 2024 - Jan 2025 (1 year)

Built batch ETL pipelines for a Pizza Hut data normalization platform, encrypting customer PII with AES-256 and loading data into AWS DynamoDB. Optimized Python and Snowflake pipelines for KFC, improving reporting speed by 50%.