SUMMARY:

• 8 years of experience in Software analysis/Design/Development/Debugging/Implementation which includes 3+ years in Big Data ecosystem related technologies.
• In depth knowledge of Hadooparchitecture, HDFS, JobTracker, Task Tracker, Name Node, Data Node and Map Reduce programming paradigm.
• Experience in installing, configuring, and usingHadoopecosystem components like Hadoop Map Reduce, HDFS, HBase, Oozie, Hive, Sqoop, Pig, and Flume and Impala.
• Experience in managing and reviewingHadooplog files and analyzing data using Pig Latin, HiveQL HBase and custom MapReduce programs in Java.
• Extending Hive and Pig core functionality by writing custom UDFs.
• Experience in designing, developing and implementing connectivity products that allow efficient exchange of data between our core database engine and theHadoopecosystem.
• Experience in importing and exporting data using Sqoop from HDFS to Relational Database Systems.
• Expertise in Oracle, NoSQL, My SQL, MS SQL Server, SQLite, Crypto API, HTML, DHTML, and other Internet Technologies.
• Strong knowledge of Mahout Machine learning, Mongo DB Experience working with geographically dispersed teams.
• TCP/IP, Sockets, Multithreaded Programming, and IPC based client server programming using C/C++.
• Proficient in using OOPs Concepts (Polymorphism, Inheritance, Encapsulation) etc.
• Used Design Patterns like MVC (Model - View-Controller) and Singleton, Factory etc.
• Experience using XML, XML parser
• A good team player with strong ability to lead and adapt new skills, and make efforts to do the work at hand effectively.

TECHNICAL SKILLS:

Programming Languages: Java 1.4, C++, C, SQL, PIG, and PL/SQL.

Java Technologies: JDBC

Frame Works: Jakarta Struts 1.1, JUnit and JTest, LDAP.

Databases: Oracle8i/9i, NOSQL (HBase), MY SQL, MS SQL server.

IDE’s & Utilities: Eclipse, JCreator, NetBeans

Web Dev. Technologies: HTML, XML.

Protocols: TCP/IP, HTTP and HTTPS.

Operating Systems: Linux, Mac OS, WINDOWS 98/00/NT/XP.

Hadoop ecosystem: Hadoop and MapReduce, Sqoop, Hive, PIG, HBASE, HDFS, Zookeeper, Lucene, Sun Grid Engine Administration

WORK EXPERIENCE:

Confidential, Cupertino, CA

Hadoop Developer

Responsibilities

• Worked on analyzing Hadoop cluster and different big data analytic tools including Pig, Hbase database and Sqoop.
• Responsible for building scalable distributed data solutions using Hadoop.
• Implemented nine nodes CDH3 Hadoop cluster on Red hat LINUX.
• Involved in loading data from LINUX file system to HDFS.
• Worked on installing cluster, commissioning & decommissioning of datanode, namenode recovery, capacity planning, and slots configuration.
• Created HBase tables to store variable data formats of PII data coming from different portfolios.
• Implemented a script to transmit sysprin information from Oracle to Hbase using Sqoop.
• Implemented best income logic using Pig scripts and UDFs.
• Implemented test scripts to support test driven development and continuous integration.
• Worked on tuning the performance Pig queries.
• Worked with application teams to install operating system, Hadoop updates, patches, version upgrades as required.
• Responsible to manage data coming from different sources.
• Involved in loading data from UNIX file system to HDFS.
• Load and transform large sets of structured, semi structured and unstructured data
• Cluster coordination services through Zookeeper.
• Experience in managing and reviewing Hadoop log files.
• Job management using Fair scheduler.
• Exported the analyzed data to the relational databases using Sqoop for visualization and to generate reports for the BI team.
• Responsible for cluster maintenance, adding and removing cluster nodes, cluster monitoring and troubleshooting, manage and review data backups, manage and review Hadoop log files.
• Installed Oozie workflow engine to run multiple Hive and pig jobs.
• Analyzed large amounts of data sets to determine optimal way to aggregate and report on it.
• Supported in setting up QA environment and updating configurations for implementing scripts with Pig and Sqoop.

Environment: Java, J2EE, Ruby on Rails, Android, IOS, Hadoop, HBase, Hive, Sqoop, MySQL, HTML5, Android, NDK.

Confidential, San Francisco, CA

HadoopDeveloper

Responsibilities:

• Built scalable distributed data solutions usingHadoop
• Worked on analyzingHadoopcluster and different big data analytic tools including Pig, Hbase database and Sqoop.
• Installed and configured Flume, Hive, Pig, Sqoop, and HBase on theHadoopcluster.
• Managing and scheduling Jobs on aHadoopcluster.
• Implemented nine nodes CDH3Hadoopcluster on Red hat LINUX.
• Worked on installing cluster, commissioning & decommissioning of datanode, namenode recovery, capacity planning, and slots configuration.
• SetupHadoopcluster on Amazon EC2 using whirr for POC.
• Resource management ofHADOOPCluster including adding/removing cluster nodes for maintenance and capacity needs.
• Installed and configured Hive and also written Hive UDFs.
• Experienced on loading and transforming of large sets of structured, semi structured and unstructured data.
• Cluster coordination services through Zookeeper.

Environment:Hadoop, HDFS, Hive, Flume, HBase, Sqoop, PIG, Java (JDK 1.6), Eclipse, MySQL and Ubuntu, Zookeeper, Amazon EC2

Confidential, Atlanta, GA

Senior Core Java/J2ee Developer

Responsibilities:

• Installation of Web Logic Software.
• Developed Modules using Casper Framework
• Customized GEPS Energy application Enhancements.
• Web based interfaces Java and JSP.
• Create Database.
• Running DB Scripts like Functions, Procedures and SQL Queries.
• Designed and developed the system using Java, MVC, XML,and GUI designing.
• Designed the XML format to exchange Data back and forth between front end, middleware and Backend. DTD was written to define XML data.
• Developed algorithms and coded programs in Core Java.
• Fixing system test defects. Involved in setting up integration and testing environments.

Environment: Core java, Struts2, Polymorphism, Threads and Multi-Threading, Operator/Function Overloading, STL's, Virtual Functions, XSLT, XML, Oracle, SQL/ PL SQL.

Confidential, Atlanta, GA

Senior Core Java/J2ee Developer

Responsibilities:

• Involved in requirement gathering, functional and technical specifications.
• Monitoring and fine tuning IDM performance
• Enhancements in the self-registration process.
• Fixing the existing bugs in various releases
• Global deployment of the application and co-ordination between the client, development team and the end users.
• Setting up of the users by reconciliations, bulk load and bulk link in all the environments.
• Wrote requirements and detailed design documents, designed architecture for data collection.
• Developed OMSA UI using MVC architecture, Core Java, Java Collections, JSP, JDBC, Servlets, ANT and XML within a Windows and UNIX environment.
• Used Java Collection Classes like Array List, Vectors, Hash Map and Hash Table.
• Used Design Patterns MVC, Singleton, Factory, Abstract Factory.

Environment: Core java, Struts2, Waveset Lighthouse 6.x (Sun IDM), Polymorphism, Threads and Multi-Threading, Operator/Function Overloading, STL's, Virtual Functions, Rational Rose, Design Patterns, Oracle, SQL/ PL SQL.

Confidential

Java/J2EE Interface Developer

Responsibilities:

• Created Use case, Sequence diagrams, functional specifications and User Interface diagrams using Star UML.
• Developed user interfaces using JSP, HTML, XML and JavaScript.
• Generated XML Schemas and used XML Beans to parse XML files.
• Created Stored Procedures & Functions. Used JDBC to process database calls for DB2/AS400 and SQL Server databases.
• Developed the code which will create XML files and Flat files with the data retrieved from Databases and XML files.
• Created Data sources and Helper classes which will be utilized by all the interfaces to access the data and manipulate the data.
• Developed web application called iHUB (integration hub) to initiate all the interface processes using Struts Framework, JSP and HTML.

Environment: Java 1.3, Servlets, JSPs, Java Mail API, Java Script, HTML, MySQL 2.1, Rational Rose, RedHat Linux