SUMMARY

• Over 7+ years of professional IT experience which includes experience in Big data ecosystem and Java/J2EE related technologies.
• Excellent Experience in Hadoop architecture and various components such as HDFS, Job Tracker, Task Tracker, NameNode, Data Node and MapReduce programming paradigm.
• Have sound exposure to Retail market including Retail Delivery System.
• Hands on experience in installing, configuring, and using Hadoop ecosystem components like Hadoop MapReduce, HDFS, HBase, Hive, Sqoop, Pig, Zookeeper and Flume.
• Good Exposure on Apache Hadoop Map Reduce programming, PIG Scripting and Distribute Application and HDFS.
• Good Knowledge on Hadoop Cluster architecture and monitoring teh cluster.
• In - depth understanding of Data Structure and Algorithms.
• Experience in managing and reviewing Hadoop log files.
• Excellent understanding and knowledge of NOSQL databases like MongoDB, HBase, Cassandra.
• Implemented in setting up standards and processes for Hadoop based application design and implementation.
• Experience in importing and exporting data using Sqoop from HDFS to Relational Database Systems and vice-versa.
• Experience in Object Oriented Analysis, Design (OOAD) and development of software using UML Methodology, good knowledge of J2EE design patterns and Core Java design patterns.
• Experience in managing Hadoop clusters using Cloudera Manager tool.
• Very good experience in complete project life cycle (design, development, testing and implementation) of Client Server and Web applications.
• Experience in Administering, Installation, configuration, troubleshooting, Security, Backup, Performance Monitoring and Fine-tuning of Linux Redhat.
• Extensive experience working in Oracle, DB2, SQL Server and My SQL database.
• Hands on experience in VPN, Putty, winSCP, VNCviewer, etc.
• Scripting to deploy monitors, checks and critical system admin functions automation.
• Hands on experience in application development using Java, RDBMS, and Linux shell scripting.
• Experience in Java, JSP, Servlets, EJB, WebLogic, WebSphere, Hibernate, Spring, JBoss, JDBC, RMI, Java Script, Ajax, Jquery, XML, and HTML
• Ability to adapt to evolving technology, strong sense of responsibility and accomplishment.

TECHNICAL SKILLS

Big Data Ecosystem: HDFS, HBase, Hadoop MapReduce, Zookeeper, Hive, Pig, Sqoop, Flume, Oozie, Cassandra

Languages: C, C++, Java, PHP, SQL/PLSQL

Methodologies: Agile, V-model.

Database: Oracle 10g, DB2, MySQL, MongoDB, CouchDB, MS SQL server, Amazon EC2

Web Tools: HTML, Java Script, XML, ODBC, JDBC, Java Beans, EJB, MVC, Ajax, JSP, Servlets, Java Mail, Struts, Junit

IDE / Testing Tools: Eclipse.

Operating System: Windows, UNIX, Linux

Scripts: JavaScript, Shell Scripting

PROFESSIONAL EXPERIENCE

Confidential, Chantilly, VA

Hadoop Developer

Responsibilities:

• Worked on analysing Hadoop cluster and different big data analytic tools including Pig, Hbase database and Sqoop
• Responsible for building scalable distributed data solutions using Hadoop
• Installed and configured Flume, Hive, Pig, Sqoop, HBase on teh Hadoop cluster.
• Managing and scheduling Jobs on a Hadoop cluster.
• Implemented nine nodes CDH3 Hadoop cluster on Red hat LINUX.
• Worked on installing cluster, commissioning & decommissioning of datanode, namenode recovery, capacity planning, and slots configuration.
• Setup Hadoop cluster on Amazon EC2 using whirr for POC.
• Resource management of HADOOP Cluster including adding/removing cluster nodes for maintenance and capacity needs
• Involved in loading data from UNIX file system to HDFS.
• Created HBase tables to store variable data formats of PII data coming from different portfolios.
• Implemented best income logic using Pig scripts.
• Implemented test scripts to support test driven development and continuous integration.
• Responsible to manage data coming from different sources.
• 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.
• Experience in managing and reviewing Hadoop log files.
• Exported teh analysed data to teh relational databases using Sqoop for visualization and to generate reports for teh BI team.
• Analysed 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: Hadoop, HDFS, Hive, Flume, HBase, Sqoop, PIG, Java (JDK 1.6), Eclipse, MySQL and Ubuntu, Zookeeper, Amazon EC2, SOLR

Confidential, Richmond VA

Hadoop Developer

Responsibilities:

• Involved in review of functional and non-functional requirements.
• Installed and configured HadoopMapreduce, HDFS, Developed multiple MapReduce jobs in java for data cleaning and preprocessing.
• Installed and configured Pig and also written PigLatin scripts.
• Wrote MapReduce job using Pig Latin.
• Involved in managing and reviewing Hadoop log files.
• Imported data using Sqoop to load data from MySQL to HDFS on regular basis.
• Developing Scripts and Batch Job to schedule various Hadoop Program.
• Written Hive queries for data analysis to meet teh business requirements.
• Creating Hive tables and working on them using Hive QL.
• Importing and exporting data into HDFS and Hive using Sqoop.
• Experienced indefining jobflows.
• Got good experience with NOSQL database SOLR, HBase.
• Involved in creating Hive tables, loading with data and writing hive queries which will run internally in map reduce way.
• Developed a custom FileSystem plug in for Hadoop so it can access files on Data Platform.
• dis plugin allows HadoopMapReduce programs, HBase, Pig and Hive to work unmodified and access files directly.
• Designed and implemented Mapreduce-based large-scale parallel relation-learning system
• Extracted feeds form social media sites such as Facebook, Twitter using Python scripts.
• Setup and benchmarked Hadoop/HBase clusters for internal use

Environment: Hadoop, MapReduce, HDFS, Hive, Java, Hadoop distribution of Horton Works, Cloudera, Pig, HBase, Linux, XML, MySQL, MySQL Workbench, Java 6, Eclipse, Oracle 10g, PL/SQL, SQL*PLUS, Sub Version, Cassandra.

Confidential, San Francisco, CA

Hadoop Developer/Admin

Responsibilities:

• Installed and configured Hadoop MapReduce, HDFS, Developed multiple MapReducejobs in java for data cleaning and preprocessing.
• Experience in installing, configuring and using Hadoop ecosystem components.
• Experience in administration, installing, upgrading and managing CDH3, Pig, Hive & Hbase
• Importing and exporting data into HDFS and Hive using Sqoop.
• Experienced in defining job flows.
• Knowledge in performance troubleshooting and tuning Hadoop clusters.
• Experienced in managing and reviewing Hadooplog files.
• Participated in development/implementation of Cloudera Hadoop environment.
• Load and transform large sets of structured, semi structured and unstructured data.
• Responsible to manage data coming from different sources.
• Got good experience with NOSQL database.
• Supported Map Reduce Programs those are running on teh cluster.
• Involved in loading data from UNIX file system to HDFS.
• Installed and configured Hive and also written Hive UDFs.
• Involved in creating Hive tables, loading with data and writing hive queries which will run internally in map reduce way.
• Implemented CDH3 Hadoop cluster on CentOS.
• 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 best income logic using Pig scripts.
• Load and transform large sets of structured, semi structured and unstructured data
• Cluster coordination services through Zookeeper.
• Exported teh analyzed data to teh relational databases using Sqoop for visualization and to generate reports for teh BI team.
• Supported in setting up QA environment and updating configurations for implementing scripts with Pig and Sqoop.

Environment: Hadoop, MapReduce, HDFS, Hive, Java, SQL, Datameter, PIG, Zookeeper, Sqoop, CentOS, SOLR.

Confidential, Johnston, IA

Java/J2EE Developer

Responsibilities:

• Involved in Analysis, Design, Development and Testing of application modules.
• Analyzed teh complex relationship of system and improve performances of various screens.
• Developed various user interface screens using struts framework.
• Worked with spring framework for dependency injection.
• Developed JSP pages, using Java Script, Jquery, AJAX for client side validation and CSS for data formatting.
• Written domain, mapper and DTO classes and hbm.xml files to access data from DB2 tables.
• Developed various reports using Adobe APIs and Web services.
• Wrote test cases using Junit and coordinated with testing team for integration tests
• Fixed bugs, improved performance using root cause analysis in production support

Environment: JDK 1.4.2, Swings, EJB 1.3, XML, XML Spy, SQL, WinSQL, StarTeam, DB2, WSAD 5.1.2, Apache ant, Windows XP/7, Web services, Junit, Hyperion 8/9.3, Citrix, Mainframes, CVS, JNDI

Confidential, Lansing, MI

Java/J2EE Interface Developer

Responsibilities:

• Created Use case, Sequence diagrams, functional specifications and User Interface diagrams using Star UML.
• Involved in complete requirement analysis, design, coding and testing phases of teh project.
• Participated in JAD meetings to gather teh requirements and understand teh End Users System.
• 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 teh code which will create XML files and Flat files with teh data retrieved from Databases and XML files.
• Created Data sources and Helper classes which will be utilized by all teh interfaces to access teh data and manipulate teh data.
• Developed web application called iHUB (integration hub) to initiate all teh interface processes using Struts Framework, JSP and HTML.
• Developed teh interfaces using Eclipse 3.1.1 and JBoss 4.1 Involved in integrated testing, Bug fixing and in Production Support

Environment: Java 1.3, Servlets, JSPs, Java Mail API, Java Script, HTML, Spring Batch XML Processing, MySQL 2.1, Swing, Java Web Server 2.0, JBoss 2.0, RMI, Rational Rose, Red Hat Linux 7.1.

Confidential

Java/J2EE developer

Responsibilities:

• DesignedanddevelopedStruts like MVC 2 Webframework using teh front-controller design pattern, which is used successfully in a number of production systems.
• Spearheadedthe “Quick Wins” project by working very closely with teh business and end users to improve teh current website’s ranking from being 23rdto 6thin just 3 months.
• Normalized Oracle database, conforming to design concepts and best practices.
• Resolvedproduct complications at customer sites and funneled teh insights to teh development and deployment teams to adopt long term product development strategy with minimal roadblocks.
• Convinced business users and analysts with alternative solutions that are more robust and simpler to implement from technical perspective while satisfying teh functional requirements from teh business perspective.
• Applied design patterns and OO design conceptsto improve teh existing Java/JEE based code base.
• Identified and fixed transactional issues due to incorrect exception handling and concurrency issues due to unsynchronized block of code.

Environment: Java 1.2/1.3, Swing, Applet, Servlet, JSP, custom tags, JNDI, JDBC, XML, XSL, DTD, HTML, CSS, Java Script, Oracle, DB2, PL/SQL, Weblogic, JUnit, Log4J and CVS.