PROFESSIONAL OVERVIEW

• Experienced in Web Application design and development using Model View Controller Architecture with JBOSS Seam, STRUTS, JSF, Spring and Hibernate Frame Works.
• Expertise in building and deployment of J2EE applications using Oracle Web logic 12c/11g/10g, Web Sphere 6.1/5.0 and JBoss 5.1.3.
• Experienced in working with AJAX, XML, XSL, XSLT, DTD, XML Schema, DOM&SAX Parsers, HTML, DHTML, JavaScript and JQuery.
• Experienced in developing technical stratagey for Reports customization using the Jasper, Docx4J, Itext and Dynamic Reports.
• Experienced in code quality and analysis using Java Code Review Tool SonarQube for troubleshooting the existing application.
• Experienced in Oracle Database Design, analyze data requirements, writing PL/SQL Stored Procedures, Packages, Functions, Triggers, DDL, DML SQL queries
• Experienced in developing J2EE components on Application Servers like IBM Web Sphere, Oracle Web Logic, JBoss and Web Servers like Apache Tomcat.
• Highly experienced in writing Maven and ANT Scripts to build the WAR, JAR and EAR files for the enterprise application.
• Experienced in using Configuration Management tools like SVN, VSS and CVS.
• Experienced in unit testing frameworks and tools like JMeter, Selenium and Junit Test Cases.
• Highly motivated, committed and a natural team player with capability to work independently. Strong analytical ability coupled with excellent written and verbal communication skills.

TECHNICAL SKILLS

Languages: Java, C, C++, OOAD and UML

Java / J2ee: Core Java, Multithreading, Swing, JavaFX, Collections, Servlets, JSP, JNDI, JDBC, JSF, Struts, Web Services, Spring and Hibernate

Web: JavaScript, XHTML, XML, XSLT, DOM, DHTML, CSS and JQuery

Open Source: Tomcat, Ant, log4J, JUnit, Maven, MySQL, Jmeter and SonarQube

App Servers: Oracle WebLogic10g/11g, JBoss, WebSphere 5.x/6.x, Tomcat 5/6

Database: Oracle9i/10g/11g, DB2, SQLServer, MSAccess.

IDE Tools: JBoss Studio, Eclipse, IntellijIdea, Net Beans, WSAD and Toad.

Reports: Jasper, Docx4J, Itext and Dynamic Reports.

Version Controls: SVN, CVS, PVCS, Visual Source Safe and Clear Case

Operating Systems: Windows 7/10, UNIX, Linux

WORK EXPERIENCE

Confidential, NJ

Hadoop Developer

Responsibilities:

• Installed/Configured/Maintained Apache Hadoop clusters for application development and Hadoop tools like Hive, Pig, HBase, Zookeeper and Sqoop.
• Involved in analyzing system failures, identifying root causes, and recommended course of actions.
• Wrote the shell scripts to monitor the health check of Hadoop daemon services and respond accordingly to any warning or failure conditions.
• Managing and scheduling Jobs on a Hadoop cluster.
• Designed a data warehouse using Hive.
• Developed Pig Latin scripts to extract the data from the web server output files to load into HDFS.
• Developed the Pig UDF’S to pre - process the data for analysis.
• Develop Hive queries for the analysts.
• Developed workflow in Oozie to automate the tasks of loading the data into HDFS and pre-processing with Pig.
• Worked on Python to have better performance.
• Cluster co-ordination services through ZooKeeper.
• Collected the logs data from web servers and integrated in to HDFS using Flume.
• Implemented Fair schedulers on the Job tracker to share the resources of the Cluster for the Map Reduce jobs given by the users.
• Responsible to manage data coming from different sources and involved in loading data from UNIX file system to HDFS.
• Managed and reviewed Hadoop log files.
• Use Spark to analyze point-of-sale data and coupon usage.
• Used Apache Kafka for large-scale data processing, handling real-time analytics and real streaming of data.
• Used Scala for integration Spark into Hadoop.
• Exported the analyzed data to the relational databases using Sqoop for visualization and to generate reports.
• Worked with highly engaged Informatics, Scientific Information Management and enterprise IT teams.

Environment: Hadoop, Hbase, HDFS, Hive, Java (jdk1.6), Pig, Zookeeper, Oozie, Kafka, Spark Flume.

Confidential - Carson City, NV

Hadoop Developer

Responsibilities:

• Responsible for building scalable distributed data solutions using Hadoop.
• Responsible for Cluster maintenance, adding and removing cluster nodes, Cluster Monitoring and Troubleshooting, Manage and review data backups and log files.
• Analyzed data using Hadoop components Hive and Pig.
• Created partitioned tables in Hive.
• Worked hands on with ETL process.
• Experience in Extraction, Transformation, and Loading (ETL) of data from multiple sources like Flat files, XML files, and Databases.
• Used Informatica for ETL processing based on business needs and extensively used Oozie workflow engine to run multiple Hive and Pig jobs.
• Involved in loading data from LINUX file system to HDFS using Sqoop and exported the analyzed data to the relational databases using Sqoop for visualization and to generate reports for the Business intelligence(BI) team.
• Responsible for running Hadoop streaming jobs to process terabytes of xml's data.
• Load and transform large sets of structured, semi structured and unstructured data using Hadoop/Big Data concepts.
• Involved in loading data from UNIX file system to HDFS.
• Installed and configured Flume, Hive, Pig, Sqoop and Oozie on the Hadoop cluster.
• Responsible for creating Hive tables loading data and writing hive queries.
• Handled importing data from various data sources, performed transformations using Hive, Map Reduce and loaded data into HDFS.
• Performed Map Reduce programs on log data to transform into structured way to find user location, age group, spending time.
• Extracted the data from Teradata into HDFS using the Sqoop.
• Exported the patterns analyzed back to Teradata using Sqoop.
• Installed Oozie workflow engine to run multiple Hive and Pig jobs which run independently with time and data availability.
• Managed and reviewed Hadoop log files.

Environment: Hadoop Cluster, HDFS, Hive, Pig, Sqoop, Linux, Hadoop Map Reduce, Hbase, ETL and UNIX Shell Scripting.

Confidential, OH

J2EE Developer

Responsibilities:

• Connectivity with Databases MySQL and Oracle.
• Involved in writing the database integration code.
• Developed various User Controls to use it across the application.
• Worked on Presentation Layer using spring, JSPs and Servlets.
• Development of Parser classes to parse the data received from the Front tier to pass it to back end.
• Development of Servlets in web application.
• Worked with J2EE and core java concept like Oops, GUI, Networking in java
• Created quality working J2EE code to design, schedule and cost to implement use cases.
• Development of web-pages and Applets.
• Responsible for Oracle 10i logical and physical databases design, implementation, and maintenance.
• Implemented Service Oriented Architecture (SOA) using JMS for sending and receiving messages while creating web services.
• Used Hibernate framework to persist the employee work hours to the database.
• Used Hibernate ORM framework with Spring framework for data persistence and transaction management
• Developed controllers and actions encapsulating the business logic.
• Developed classes to interface with underlying web services layer.
• Prepared the design document based on requirements and sending project status report on weekly basis.

Environment: Java, J2EE 1.4, JSP, Servlets 3.0, MySQL 5.1, Oracle 10g, Apache Tomcat 6.0.