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Jaseena Mannarattil

@jaseenamannarattil

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Azure data engineer specializing in scalable ETL, PySpark, and cloud migrations.

India

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What I'm looking for

I seek roles where I can lead cloud data migrations, build scalable ETL pipelines on Azure, mentor teams, and deliver high-quality, performant data platforms.

I am an Azure-focused data engineer with over 4 years of experience building and optimizing scalable data solutions, migrating legacy ETL to cloud architectures, and improving data processing efficiency.

I have led end-to-end migrations from Informatica PowerCenter and BDM ETL workflows to Azure Databricks, authored PySpark notebooks for dimension and fact transformations, and designed ELT pipelines using Azure Data Factory and Databricks into Azure Synapse Analytics.

I emphasize data accuracy and performance—ensuring zero data loss and 100% post-migration accuracy—while mentoring teams, implementing CI/CD with Harness and Azure DevOps, and working in Agile environments to deliver reliable, production-ready data platforms.

Experience

Work history, roles, and key accomplishments

Current

Azure Data Engineer

Current

Cognizant Technology Solutions

Oct 2021 - Present (4 years 2 months)

Led end-to-end migration of Informatica PowerCenter ETL workflows to Azure Databricks and designed ADF/Databricks ELT pipelines into Azure Synapse, ensuring zero data loss and 100% post-migration accuracy while improving processing performance.

Databricks Azure Data Factory Informatica Pyspark SQL Azure DevOps CI CD ETL Performance Optimization

Education

Degrees, certifications, and relevant coursework

Government Engineering College Thrissur

Bachelor of Technology, Electrical and Electronics

2017 - 2021

Grade: 8.3/10 GPA

Bachelor of Technology in Electrical and Electronics completed with a 8.3/10 GPA, focused on foundational engineering principles and practical coursework.