SUMMARY:

• Over 7 years of Experience on Expertising in developing web applications using Servlets, JSP, jQuery, EJB 3.0, spring, Hibernate, SOAP, WSDL.
• Specializes in Java/J2EE technologies with JBoss 5.1, and Tomcat 5.5.
• Solid experience in Designing, implementing, and improving analytic solutions for Big Data on Apache Hadoop.
• Excellent knowledge of Software Development Methodology and OOAD, UMLs, Use Cases, Sequence Diagrams and Class Diagrams
• Good knowledge of developing applications based on architectures like Hibernate, Spring Framework and MVC architecture
• Good knowledge on JAXB.
• Excellent experience working with Oracle9i and DB2 9.0 databases.
• Good Knowledge on Design Patterns such as MVC, Singleton, Session Facade, Business Delegate, Factory Pattern and Data Access Object.
• Excellent experience with Version Control Systems like Git, CVS, SubVersion and IBM Rational Clear Case
• Good Experience on XML related technologies such as XML, XSL, DOM, SAX etc.
• Experienced with various IDEs like My Eclipse, Eclipse.
• In - depth understanding of Data Structure and Algorithms
• Expertise in Agile Software Development methodology.
• Working experience in Map Reduce programming model Big data and Hadoop Distributed File Systems.
• Good experience in writing Sqoop queries for transferring bulk data between ApacheHadoop and structured data stores.
• Good knowledge on Oozie, a workflow scheduler system to manage apache Hadoop jobs.
• Good experience in Pig Latin, a Scripting Language for Hadoop Distributed File system.
• Good Knowledge in Flume, Avro and Zoo Keeper Architecture.
• Working knowledge in Hadoop HDFS Admin Shell commands.
• Good Knowledge in NoSQL databases HBASE (Column family DB).
• Good knowledge on Hadoop MRV1 and Hadoop MRV2 (or) YARN Architecture.
• Extending HIVE and PIG core functionality by using custom User Defined Function's (UDF), User Defined Table-Generating Functions (UDTF) and User Defined Aggregating Functions (UDAF) for Hive and Pig.
• Hands on experience in installing, configuring cloudera Apache Hadoop ecosystem components like Flume, Hbase, Zoo Keeper, Oozie, Hive, Sqoop and Pig.

TECHNICAL SKILLS:

Big Data: Hadoop, HDFS, MapReduce, Hive, Sqoop, Pig, HBase, MongoDB, Flume, Zookeeper, Oozie.

Operating Systems: Windows, Ubuntu, Red Hat Linux, Linux, UNIX

Java Technologies: JDBC, JAVA, SQL, JavaScript, J2EE, C, JDBC, SQL, PL/SQL

Programming or Scripting Languages: Java, SQL, Unix Shell Scripting, C.

Database: MS-SQL, MySQL, Oracle, MS-Access

Middleware: Web Sphere, TIBCO

IDE’s & Utilities: Eclipse and JCreator, NetBeans

Protocols: TCP/IP, HTTP and HTTPS.

Testing: Quality Center, Win Runner, Load Runner, QTP

Frameworks: Hibernate 3.0, Spring 3.x, Servlets, JSP,XML, Struts,EJB 2.x/3.x, JDBC,MVC

PROFESSIONAL EXPERIENCE

Confidential, NC

BigData/Hadoop developer

Responsibilities:

• Developed and Supported Map Reduce Programs those are running on the cluster. Gatheird the business requirements from the Business Partners and Subject Matter Experts.
• Setting up Hadoop cluster and Hadoop eco system environment for different big data analytics project in data centers
• Created Hive tables and working on them using Hive QL.
• Involved in installing Hadoop Ecosystem components.
• Validated Namenode, Data node status in a HDFS cluster.
• Handled 2 TB of data volume and implemented the same in Production.
• Weekly meetings with technical collaborators and active participation in code review sessions with senior and junior developers.
• Used to manage and review the Hadoop log files.
• Responsible to manage data coming from different sources.
• Supported Map Reduce Programs those are running on the cluster.
• Involved in HDFS maintenance and loading of structured and unstructured data.
• Wrote Map Reduce job using Java API.
• Wrote Hive queries for data analysis to meet the business requirements.
• Installed and configured Pig and also written PigLatin scripts.
• Developed UDFs for Pig Data Analysis
• Involved in managing and reviewing Hadoop log files.
• Developed Scripts and Batch Job to schedule various Hadoop Program.
• Utilized Agile Scrum Methodology to halp manage and organize a team of 4 developers with regular code review sessions.
• Used JUnit for unit testing and Continuum for integration testing.
• Worked hands on with ETL process.
• Upgrading the Hadoop Cluster from CDH3 to CDH4 and setup High availability Cluster Integrate the HIVE with existing applications
• Configured Ethernet bonding for all Nodes to double the network bandwidth
• Handled importing of data from various data sources, performed transformations using Hive, MapReduce,
• Analyzed the data by performing Hive queries and running Pig scripts to know user behavior.
• Continuous monitoring and managing the Hadoop cluster through Cloudera Manager.
• Installed Oozie workflow engine to run multiple Hive and Pig jobs.
• Developed Hive queries to process the data and generate the data cubes for visualizing.

Environment: Java Hadoop, MapReduce, HDFS, Hive, Pig, Linux, Big data, XML,Eclipse, Cloudera CDH3/4 Distribution, Informatica 9.1

Confidential, Eden Prairie, MN

Hadoop Developer

Responsibilities:

• Replaced default Derby metadata storage system for Hive with MySQL system.
• Executed queries using Hive and developed Map-Reduce jobs to analyze data.
• Developed Pig Latin scripts to extract the data from the web server output files to load into HDFS.
• Developed the Pig UDF’s to preprocess the data for analysis.
• Developed Hive queries for the analysts.
• Utilized Apache Hadoop environment by Hortonworks.
• Developed presentation layer using JSP, HTML, DHTML, CSS, AJAX, JavaScript, and JSTL Taglibs.
• Involved in loading data from LINUX and UNIX file system to HDFS.
• Supported in setting up QA environment and updating configurations for implementing scripts with Pig.
• Involved in loading and storing objects using Hibernate.
• Involved in configuring Hibernate mapping file.
• Used version one to work on agile development.

Environment: Core Java, Apache Hadoop (Horton works), HDFS, Pig, Hive, Cassandra, Shell Scripting, My Sql, LINUX, UNIX

Confidential, Vienna, VA

Hadoop Developer

Responsibilities:

• Worked on analyzing Hadoop cluster and different big data analytic tools including Pig, Hbase NoSQL database and Sqoop.
• Importing and exporting data in HDFS and Hive using Sqoop.
• Extracted files from MongoDB through Sqoop and placed in HDFS and processed.
• Experience with NoSQL databases.
• Written Hive UDFS to extract data from staging tables.
• Involved in creating Hive tables, loading with data and writing hive queries which will run internally in map reduce way.
• Familiarized with job scheduling using Fair Scheduler so that CPU time is well distributed amongst all the jobs.
• Synchronized different configuration files of hadoop cluster nodes across the system.
• Configured the MapReduce property to make sure local temporary storage is using large disk partitions.
• Involved in the regular Hadoop Cluster maintenance such as patching security holes and updating system packages.
• Managed Hadoop log files.
• Analyzed the web log data using the HiveQL.

Environment: Java 6, Eclipse, Hadoop, Hive, Hbase, MangoDB,Linux, Map Reduce, HDFS, Shell Scripting, Mysql

Confidential

Software Developer

Responsibilities:

• Created browser-based application that provides flexibility for sales force to create and edit presentations while maintaining control over the appearance.
• Design and integration of Struts, Flash, XML, XSL, Tomcat, Web Services, JSP, JUnit, and MySql, Oracle 9i, PostgreSQL 7.1
• Development of J2EE EJBs, Servlets, JSP, Applets, and Java Beans for financial internet/intranet application running on Weblogic 7.1 application server and Oracle 9i.
• Project initiated with Enterprise Architect for UML object design.
• Oracle 9i schema design, creation of table spaces, accounts, synonyms and data import/exports.
• Developed Web services for financial extranet, that generate real time portfolio reports, using Perl, Java, XSL and WAP.
• Development of Swing Jlist, Jtable, and Jtree beans for data manipulation and presentation.
• Created hierarchical listener for all Swing gui business objects to minimize database roundtrip synchronization.
• Weblogic 7.1 (Integration) workflow applications design and development.
• System administration programs written in Python - Web site migration, backups.

Environment: Java, Weblogic, Struts, JSP, JSTL, Linux, Servlets, Applets, Apache Axis, Python, Perl,Tomcat, Apache, MySQL, PostgreSQL 7.1, Oracle 9i, CVS