SUMMARY;

• Over 8 years of IT experience as a Developer, Designer & quality reviewer with cross platform integration experience using Hadoop, Java, J2EE.
• Hands on experience with Hadoop, HDFS, MapReduce and Hadoop Ecosystem like Pig, Hive, Oozie, Flume and Hbase.
• Hands on experience using Cloudera and Horton work Hadoop Distributions.
• Hands on experience in installing, configuring and using Apache Hadoop ecosystems such as Map Reduce, HIVE, PIG, SQOOP, FLUME and OOZIE.
• Strong understanding of various Hadoop services, MapReduce and YARN architecture.
• Responsible for writing MapReduce programs.
• Experienced in importing - exporting data into HDFS using SQOOP.
• Load log data into HDFS using Flume.
• Experience loadingdata to Hive partitions and creating buckets in Hive
• Logical Implementation and interaction with HBase
• Developed MapReduce jobs to automate transfer the data from HBase.
• Writing Map Reduce programs in Hadoop, pig, Hive and Scala
• Expertise in analysis using PIG, HIVEand Mapreduce.
• Worked in Multiple Environment in installation and configuration.
• Experienced in developing UDFs for Hive using Java.
• Strong understanding of NoSQL databases like HBase, MongoDB & Cassandra.
• Familiar with handling complex data processing workflows using Oozie.
• Scheduling all hadoop/hive/sqoop/Hbase jobs using Oozie.
• Experience in setting cluster in Amazon EC2 & S3 including the automation of setting & extending the clusters in AWS Amazon cloud.
• Developed core modules in large cross-platform applications using JAVA, J2EE, spring, Struts, Hibernate, JAX-WS Web Services, and JMS.
• Worked on debugging tools such as Dtrace, Struss and Top. Expert in setting up SSH, SCP, SFTP connectivity between UNIX hosts.
• Good understanding of Scrum methodologies, Test Driven Development and continuous integration.
• Major strengths are familiarity with multiple software systems, ability to learn quickly new technologies, adapt to new environments, self-motivated, team player, focused adaptive and quick learner with excellent interpersonal, technical and communication skills

TECHNICAL SKILLS:

Hadoop/Big Data: HDFS, MapReduce, Hive, Pig, Sqoop, Flume, Oozie, and ZooKeeper.

No SQL Databases: Hbase,Cassandra, mongoDB

Languages: C, C++, Java, J2EE, PL/SQL, Pig Latin, HiveQL, UNIX shell scripts

Java/J2EE Technologies: Applets, Swing, JDBC, JNDI, JSON, JSTL, RMI, JMS, Java Script, JSP, ServletsEJB, JSF, JQuery

Frameworks: MVC, Struts, Spring, Hibernate

Operating Systems: Sun Solaris, HP-UNIX, RedHat Linux, Ubuntu Linux and Windows XP/Vista/7/8

Web Technologies: HTML, DHTML, XML, AJAX, WSDL, SOAP

Web/Application servers: Apache Tomcat, WebLogic, JBoss

Databases: Oracle 9i/10g/11g, DB2, SQL Server, MySQL, Teradata

Tools: and IDE Eclipse, NetBeans, Toad, Maven, ANT, Hudson, Sonar, JDeveloper, Assent,PMD, DB Visualizer

Network Protocols: TCP/IP, UDP, HTTP, DNS, DHCP

PROFESSIONAL EXPERIENCE;

Confidential, Phoenix, AZ

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.
• 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.
• Implemented test scripts to support test driven development and continuous integration.
• Worked on tuning the performance of Mapreduce Jobs.
• Implemented Map Reduce using Hadoop,Pig,Hive and scala
• Responsible to manage data coming from different sources.
• Load and transform large sets of structured, semi structured and unstructured data
• 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.
• Created Oozie workflows to run multiple MR, Hive and pig jobs.
• Supported in setting up QA environment and updating configurations for implementing scripts with Pig and Sqoop.

Environment: Hadoop, HDFS, Pig, Sqoop, HBase, Shell Scripting, Ubuntu, Linux Red Hat.

Confidential, Salem, NH

Hadoop Developer

Responsibilities:

• Installed and configured Hadoop MapReduce, HDFS and developed multiple MapReduce jobs in Java for data cleansing and preprocessing.
• Involved in setting up Multi Node cluster in Amazon Cloud by creating instances on Amazon EC2.
• Created MapReduce Jobs on Amazon Elastic Map Reduce (Amazon EMR).
• Involved in loading data from UNIX file system to HDFS.
• Installed and configured Hive and also written Hive UDFs.
• Evaluated business requirements and prepared detailed specifications that follow project guidelines required to develop written programs.
• Devised procedures that solve complex business problems with due considerations for hardware/software capacity and limitations, operating times and desired results.
• Analyzed large amounts of data sets to determine optimal way to aggregate and report on it.
• Provided quick response to ad hoc internal and external client requests for data and experienced in creating ad hoc reports.
• 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, manage and review Hadoop log files.
• Worked hands on with ETL process.
• Handled importing of data from various data sources, performed transformations using Hive, MapReduce, and loaded data into HDFS.
• Extracted the data from Teradata into HDFS using Sqoop.
• Analyzed the data by performing Hive queries and running Pig scripts to know user behavior like shopping enthusiasts, travelers, music lovers etc.
• Exported the patterns analyzed back into Teradata using Sqoop.
• Continuous monitoring and managing the Hadoop cluster through Cloudera Manager.
• Installed Oozie workflow engine to run multiple Hive.
• Developed Hive queries to process the data and generate the data cubes for visualizing.

Environment: Hadoop, MapReduce, HDFS, Hive, Ooozie, Java (jdk1.6), Cloudera, NoSQL, Oracle 11g, 10g, PL SQL, SQL*PLUS, Toad 9.6, Windows NT, UNIX Shell Scripting.

Confidential, San Jose, CA

Java/J2EE Developer

Responsibilities:

• Created design documents and reviewed with team in addition to assisting the business analyst / project manager in explanations to line of business.
• Responsible for understanding the scope of the project and requirement gathering.
• Involved in analysis, design, construction and testing of the online banking application
• Developed the web tier using JSP, Struts MVC to show account details and summary.
• Used Struts Tiles Framework in the presentation tier.
• Designed and developed the UI using Struts view component, JSP, HTML, CSS and JavaScript.
• Used AJAX for asynchronous communication with server
• Utilized Hibernate for Object/Relational Mapping purposes for transparent persistence onto the SQL Server database.
• Used Spring Core for dependency injection/Inversion of control (IOC), and integrated frameworks like Struts and Hibernate.
• Involved in writing Spring Configuration XML files that contains declarations and other dependent objects declaration.
• Used Tomcat web server for development purpose.
• Involved in creation running of Test Cases for JUnit Testing.
• Used Oracle as Database and used Toadfor queries execution and also involved in writing SQL scripts, PL/SQL code for procedures and functions.
• Used CVS for version controlling.
• Developed application using Eclipse and used build and deploy tool as Maven.
• Used Log4J to print the logging, debugging, warning, info on the server console.

Environment: Java, J2EE Servlet, JSP, JUnit, AJAX, XML, JavaScript, Spring, Struts, Hibernate, Log4j, CVS, Maven, Eclipse, Apache Tomcat, and Oracle.

Confidential

Java Developer

Responsibilities:

• Extensively involved in the design of JSP screens for the Public Provident Fund and Bond modules.
• Developed the user interface screens for the above modules.
• Worked with the front-end applications using HRML, XML.
• Developed the business components (in core Java) used in the JSP screens.
• Implemented Delegate, Façade, DAO patterns for building the application.
• Written Ant scripts for build, unit testing, deployment, check styles etc.
• Used JUnit for unit testing.
• I was part of all testing phases. Provided UAT support.
• Created war files and deployed in Web Logic and Websphere Application Server.
• Created tables, stored procedure, fulfills the requirements and accommodate the business rules in Oracle 8i database.
• Delivered Zero defects in UAT.

Environment: Java, JSP, XML, HTML, Servlets, SQL, PL-SQL, JDK JDBC, Web Logic 6.1, Websphere, EJB, JNDI, Eclipse, Ant.