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 the 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

Role Hadoop Developer

Responsibilities

• Setup Hadoop cluster on Amazon EC2 using whirr for POC.
• 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 the 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.
• 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 the analysed data to the relational databases using Sqoop for visualization and to generate reports for the 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

Role 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 the business requirements.
• Creating Hive tables and working on them using Hive QL.
• Importing and exporting data into HDFS and Hive using Sqoop.
• Experienced in defining job flows.
• 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.
• This 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

Role Hadoop Developer/Admin

Responsibilities

• Installed and configured Hadoop MapReduce HDFS Developed multiple MapReduce jobs 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 Hadoop log 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 the 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 the analyzed data to the relational databases using Sqoop for visualization and to generate reports for the 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

Role Java/J2EE Developer

Responsibilities

• Involved in Analysis Design Development and Testing of application modules.

Analyzed the 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

Role 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 the project.
• Participated in JAD meetings to gather the requirements and understand the 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 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.
• Developed the 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

Role Java/J2EE developer

Responsibilities

• Designed and developed Struts like MVC 2 Web framework using the front-controller design pattern which is used successfully in a number of production systems.
• Spearheaded the Quick Wins project by working very closely with the business and end users to improve the current website s ranking from being 23rd to 6th in just 3 months.
• Normalized Oracle database conforming to design concepts and best practices.
• Resolved product complications at customer sites and funneled the insights to the 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 the functional requirements from the business perspective.
• Applied design patterns and OO design concepts to improve the 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.