Senior Bigdata Engineer
Current• Perform structural modifications using MapReduce, Hive and analyze data using visualization/reporting tools (Tableau).• Extending support to Oracle, Hadoop, & MongoDB along with DB2 to embrace multi DBMS support concept, and emb paradigm of management for Open Source Software, &Commodity Hardware to reduce costs.• Converting old oracle SQL/PL- SQL, Microsoft SQL server/ T- SQL written SQL to run on big data platforms using PYSPARK, SPARKSOL and HIVE with SAS and Python as programming platforms.• Was responsible for creating on-demand tables on S3 files using Lambda Functions and AWS Glue using Python.• Worked on the database migration from Netezza to AWS Redshift. Worked closely with the vendor on the plan and scripts needed to migrate the data.• Implemented e mappings using Normalizer and other transformations to process data from COBOL VSAM files by preparing respective Informatica Copybook for each and every file and then propagating data into Teradata warehouse.• Coordinated with IBM,Oracle, BEA, RedHat vendors to resolve issues related with middleware products.• Converting old oracle SQL/PL- SQL, Microsoft SQL server/ T- SQL written SQL to run on big data platforms using PYSPARK, SPARKSOL and HIVE with SAS and Python as programming platforms.