Sr. Hadoop Developer Resume
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La Jolla, CA
SUMMARY:
- Over 16 years of thorough experience in IT.
- Working on Big Data Hadoop for last 4+ years.
TECHNICAL SKILLS:
- Unix Shell scripting, Sqoop, Hive, Impala with Cloudera distribution (CDH 5.8.2), Spark with Scala, SBT, Java
- Hands on using job scheduling and monitoring tools like Oozie and Tivoli
- Clear understanding on Hadoop Architecture
- Hands on writing custom UDFs in Java for extending Hive and Impala functionality.
- Have good interpersonal, communicational skills, strong problem solving skills, explore/adopt to new technologies with ease and a good team member.
- Strong proficiency in Cloudera Distribution of Apache Hadoop
EXPERIENCE:
Confidential
Sr. Hadoop Developer
- Finished several projects like Small Business Report, bPaid, UK Cards in no time using Jira, Confluence, Bitbucket and agile software development methodology on Cloudera Distribution.
- Led the team in designing the solution along with complete hands - on on Development
- Created UDF in Java to generate Surrogate Key
- Authentication controlled by Kerberos security
- Achived the process of data-acquisition and data pre-processing using Scala (with Spark)
- Achived huge performance gain by converting Hive queries into Spark transformation using Spark RDD and Scala
Confidential, La Jolla, CA
Sr. Hadoop Developer
- Used Sqoop to import e-Scan data (related to medicare and medicaid) into HDFS from RDBMS
- Ran Pig Latin query to quickly transform the data into the PI review reports for Medicare & Medicaid Fraud detection System
- Created workflow/co-ordinator using Oozie for regular jobs
- Created Map Reduce program in Java for data processing
Confidential
Sr. Developer
- During this period, worked in various sector like Retail, Telecom and Medical Sector of industries
- Used Siebel CRM tool as the solution approach integrating with other systems through Webservices, ETL Load (import/export) and customization to the front UI
- Used Java as scripting language for the complex customization like integrating with Chase Paymentech
Confidential
EIM Consultant
- Worked on loading millions of records from interface table into base tables
- Involved in core Java specification
- Used rollback on error to rollback EIM load if any error occurred
- Incorporated session SQL parameter to set for Pre EIM tasks
- Responsible for the complete documentation and requirement gathering of EIM mappings
- Worked exclusively on the EIM Testing team to transfer data from flat files (XLS and .csv files) to Siebel OLTP system for Siebel Call Center
- Carried out remap, add, text change, and delete operations on the data using EIM load
- Loaded data for Accounts, Contacts, Opportunity Category, Product, and Competitor entities for Siebel Call Center application
- Created complete technical document for EIM process and transferred knowledge to Production and IT Support teams
