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Jeraj Jain

@jerajjain

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I build scalable ETL pipelines, data migrations, and Snowflake warehouses that improve reliable analytics.

India

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What I'm looking for

I'm looking to optimize data engineering and ETL processes, strengthen migration strategies, and build robust data warehousing solutions that drive analytics and integration.

I've delivered ETL development, migration, and data warehousing solutions at NTT DATA for Solar Turbines, Salesforce CIO Dashboard, Blue Cross Blue Shield Rhode Island, and Caterpillar. I build and optimize Matillion and Snowflake pipelines, write SQL and Python, and support reliable reporting from Qlik through Tableau.

I've reduced ETL job failures by 40% through monitoring and debugging, migrated 1,000 DataStage jobs to Matillion with 30% lower complexity, and migrated 100+ jobs to reduce operational costs by 20%. I also bring earlier DWH/BI development experience at Amdocs on AT&T, including Teradata, Unix scripting, SQL Server, SSIS, and production scheduling.

Experience

Work history, roles, and key accomplishments

Current

Data Senior Engineer

Current

NTT DATA

Jul 2021 - Present (5 years 2 months)

Working as a Data Architect and engineer, delivering high-quality ETL job development and enhancements. Experienced in Matillion and Snowflake, designing and optimizing data pipelines, and reducing ETL job failures by 40%.

Matillion Snowflake SQL Python Azure DevOps Kanban Tableau Teradata DBT Incident Management Root Cause Analysis Code Review

Data Engineer

NTT DATA

May 2024 - May 2025 (1 year)

Spearheaded design and implementation of data transformation processes within Salesforce Data Cloud, ensuring seamless data ingestion and management. Developed and optimized SQL queries for data transformation, analysis, and validation.

Salesforce Data Cloud SQL data transformation Data Ingestion Data Modeling Knowledge transfer

Data Engineer (Lead)

NTT DATA

Sep 2023 - May 2024 (8 months)

Implemented ETL solutions for health insurance domain, ensuring optimized data flows. Led end-to-end migration of ETL jobs from DataStage to Matillion, reducing complexity by 30%.

ETL DataStage Matillion Snowflake Azure Blob Storage Data Governance Data Quality Unit Testing Documentation Client Engagement

ETL Developer

NTT DATA

Jul 2021 - Sep 2023 (2 years 2 months)

Proposed new ETL solutions for financial domain, managing migration of 100+ ETL jobs from DataStage to Matillion, reducing operational costs by 20%. Created extracts, orchestration, and transformation processes to fetch data from Oracle and S3 buckets.

ETL DataStage Matillion Oracle S3 Salesforce Unit Testing Documentation

DWH/BI Developer

Amdocs

Jul 2019 - Jul 2021 (2 years)

Gained experience in Teradata scripting, utilities, and Unix scripting. Collaborated with Data Warehousing Test Engineer to prepare documentation and analyze business data.