Vishnu Vijayan Email and Phone Number

•Created pipelines to seamlessly ingest over 10 billion records of customer and transaction data from multiple sources, storing them in HDFS.•Worked on the clean room solutions provided by Google (ADH) and Facebook (Advanced Analytics) and Ads manager•Scheduling the jobs using Airflow and Hadoop (on-prem HDFS), hive being used as storage andwarehouse.•Worked with 3 different 3rd parties for data movement between Lowe’s and respective 3rd parties.•Migration from on-prem to… Show more •Created pipelines to seamlessly ingest over 10 billion records of customer and transaction data from multiple sources, storing them in HDFS.•Worked on the clean room solutions provided by Google (ADH) and Facebook (Advanced Analytics) and Ads manager•Scheduling the jobs using Airflow and Hadoop (on-prem HDFS), hive being used as storage andwarehouse.•Worked with 3 different 3rd parties for data movement between Lowe’s and respective 3rd parties.•Migration from on-prem to GCP where airflow jobs migrated to Google composer, Spark codemigrated to Data proc, instead of Hive we used Google Big Query as warehouse Show less

•Analysed user requirements and crafted comprehensive low and high-level design documents, as well as unit test scripts for batch programs.•Played a key role in requirement gathering and analysis, ensuring a thorough understanding of project objectives and stakeholder needs.•Led database migration project within AIRS system, transitioning from File Maxx to DB2, mitigating reliance on unsupported technology and leveraging COBOL, JCL, and DB2.•Led core development activities… Show more •Analysed user requirements and crafted comprehensive low and high-level design documents, as well as unit test scripts for batch programs.•Played a key role in requirement gathering and analysis, ensuring a thorough understanding of project objectives and stakeholder needs.•Led database migration project within AIRS system, transitioning from File Maxx to DB2, mitigating reliance on unsupported technology and leveraging COBOL, JCL, and DB2.•Led core development activities, including module development and System Integration Testing (SIT), utilizing COBOL, JCL, DB2, and tools such as File-Aid and XPeditor to ensure seamless integration and functionality.•Collaborated closely with stakeholders to validate User Acceptance Testing (UAT) results, promptly addressing any defects to uphold product quality. Show less