PROFESSIONAL SUMMARY:

• 8+ years of professional experience in IT, including 2 years of work experience in Hadoop Eco system, and Big - Data Analytics
• In depth understanding/knowledge of Hadoop Architecture and various components such as HDFS, JobTracker, TaskTracker, NameNode, DataNodeand MapReduce concepts.
• Well versed in installation, configuration, supporting and managing of Big Data and underlying infrastructure of Hadoop Cluster.
• Hands on experience on major components in Hadoop Ecosystem like Hadoop Map Reduce, HDFS, HIVE, PIG, Confidential PDI, HBase, Sqoop, Oozie and Flume.
• Experience wif Oozie Workflow Engine in running workflow jobs wif actions dat run Hadoop Map/Reduce and Pig jobs.
• Experience in managing and reviewing Hadoop Log files.
• Extending Hive and Pig core functionality by writing custom UDFs.
• Experience in Hadoop administration activities such as installation and configuration of clusters using Apache and Cloudera.
• Good Knowledge in Amazon AWS concepts like EMR and EC2 web services which provides fast and efficient processing of Big Data.
• Hands on experience in designing and coding web applications using Core Java and J2EE technologies.
• Experienced the integration of various data sources like Java, RDBMS, Shell Scripting, Spreadsheets, and Text files.
• Experience in Web Services using XML, HTML and SOAP.
• Excellent Java development skills using J2EE, J2SE, Servlets, JUnit, JSP, JDBC.
• Familiarity working wif popular frameworks likes Struts, Hibernate, Spring, MVC and AJAX.
• Extensive experience in developing components using JDBC, Java, Oracle, XML and UNIX Shell Scripting.
• Ability to blend technical expertise wif strong Conceptual, Business and Analytical skills to provide quality solutions and result-oriented problem solving technique and leadership skills.

TECHNICAL SKILLS:

Hadoop Ecosystem: HDFS, Map Reduce Hive, Pig, HBase, Zookeeper, Sqoop, Oozie, Flume, Spark, Strom, Kafka, Confidential and Avro.

Web Technologies: Java, J2EE, Servlets, JSP, JDBC, XML, AJAX, SOAP, WSDL

Methodologies: Agile, UML, Design Patterns (Core Java and J2EE)

Frameworks: Hibernate 2.x/3.x, Spring 2.x/3.x, Struts 1.x/2.x

Programming Languages: Java, XML, Unix Shell scripting, HTML.

Database Systems: Oracle 11g/10g, DB2, MS-SQL Server, MySQL, MS-Access

Web Services: Web Logic, Web Sphere, Apache Tomcat

Monitoring & Reporting tools: Ganglia, Custom Shell scripts

Operating Systems: Windows-XP/2000/NT, UNIX, Linux, and DOS

IDE: Eclipse3.x, NetBeans

PROFESSIONAL EXPERIENCE:

Confidential, Sunnyvale, CA

Sr. Big Data Consultant

Responsibilities:

• Responsible for building Hadoop cluster and integrate wif Confidential Data Integration (PDI) server
• Experienced in creating ETL transformations/Jobs using Spoon
• Experience in developing visual MapReduce Applications using Confidential Spoon
• Data loaded into impala tables after data cleansing
• Established database connection from Confidential to store in MySQL
• Experienced in working wif different Hadoop Ecosystems such as Hive, Impala, Hbase, Pig, Sqoop through Confidential
• Developed various complex Mapper and Reduce transformations for Confidential MapReduce Jobs
• Experience in using MongoDB
• Extensively involved in Hadoop testing where scripts written in Python
• Responsible for analyzing logs generated from various test cases identifying the reasons in case of failures
• Experience in building plugins using Confidential java API
• Involved in various debugging sessions wif team
• Responsible test cases reporting and documenting the test results
• Good Knowledge in Report Designing using Confidential BA suite

Environment: Confidential PDI, Spoon, Java 6, Linux, Hadoop (CDH and Hortonworks), Impala, Hive, Sqoop, Hbase, Pig, MySQL

Confidential, Boston, MA

Hadoop Developer

Responsibilities:

• Installed and configured Hadoop MapReduce, HDFS, Developed multiple MapReduce jobs in java for data cleaning and preprocessing.
• Importing and exporting data into HDFS and Hive using Sqoop.
• Experienced indefining jobflows.
• Experienced in managing andreviewingHadooplog files.
• Extracted files from CouchDB through Sqoop and placed in HDFS and processed.
• Experienced in runningHadoopstreaming jobs to process terabytes of xml format data.
• Load and transform large sets of structured, semi structured and unstructured data.
• Responsible to manage data coming from different sources.
• Got good experience wif 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 wif data and writing Hive queries which will run internally in map reduce way.

Environment: Java 6, Eclipse, Linux, Hadoop, HBase, Sqoop, Pig, Hive, Flume.

Confidential, MA

Hadoop Developer

Responsibilities:

• Involved in the Complete Software development life cycle (SDLC) to develop the application.
• Worked on analyzing Hadoop cluster and different big data analytic tools including Pig, Hbase database and Sqoop.
• Involved in loading data from LINUX file system to HDFS.
• Exported the analyzed data to the relational databases using Sqoop for visualization and to generate reports for the BI team.
• Importing and exporting data into HDFS and Hive using Sqoop.
• Implemented test scripts to support test driven development and continuous integration.
• Supported in setting up QA environment and updating configurations for implementing scripts wif Pig and Sqoop.
• Installed and configured Hadoop MapReduce, HDFS, Developed multiple MapReduce jobs in java for data cleaning and preprocessing.
• Created Pig Latin scripts to sort, group, join and filter the enterprise wise data.
• Involved in creating Hive tables, loading wif data and writing hive queries dat will run internally in mapreduce way.
• Supported MapReduce Programs those are running on the cluster.
• Analyzed large data sets by running Hive queries and Pig scripts.
• Worked on tuning the performance Pig queries.
• Mentored analyst and test team for writing Hive Queries.
• Installed Oozie workflow engine to run multiple MapReduce jobs.
• Worked wif application teams to install operating system, Hadoop updates, patches, version upgrades as required.

Environment:Hadoop, HDFS, Map Reduce, Hive, Pig, Sqoop, Linux, Java, Oozie, HBase

Confidential, Atlanta, GA

Hadoop Developer

Responsibilities:

• Responsible for building scalable distributed data solutions using Hadoop
• Installed and configured Hive, Pig, Sqoop, Flume and Oozie on the Hadoop cluster
• Setup and benchmarked Hadoop/HBase clusters for internal use
• Developed Simple to complex Map/reduce Jobs using Hive and Pig
• Optimized Map/Reduce Jobs to use HDFS efficiently by using various compression mechanisms
• Handled importing of data from various data sources, performed transformations using Hive, MapReduce, loaded data into HDFS and Extracted the data from MySQL into HDFS using Sqoop
• Analyzed the data by performing Hive queries and running Pig scripts to study customer behavior
• Used UDF's to implement business logic in Hadoop
• Implemented business logic by writing UDFs in Java and used various UDFs from Piggybanks and other sources.
• Continuous monitoring and managing the Hadoop cluster using Cloudera Manager
• Worked wif application teams to install operating system, Hadoop updates, patches, version upgrades as required
• Installed Oozie workflow engine to run multiple Hive and Pig jobs
• Exported the analyzed data to the relational databases using Sqoop for visualization and to generate reports for the BI team

Environment: Hadoop, MapReduce, HDFS, Hive, Pig, Java, SQL, Cloudera Manager, Sqoop, Flume, Oozie, Java (jdk 1.6), Eclipse.

Confidential, Seattle, WA

Java/J2EE Developer

Responsibilities:

• Involved in various phases of Software Development Life Cycle (SDLC) as design development and unit testing.
• Developed and deployed UI layer logics of sites using JSP, XML, JavaScript, HTML/DHTML, and Ajax.
• CSS and JavaScript were used to build rich internet pages.
• Agile Scrum Methodology been followed for the development process.
• Designed different design specifications for application development dat includes front-end, back-end using design patterns.
• Developed proto-type test screens in HTML and JavaScript.
• Involved in developing JSP for client data presentation and, data validation on the client side wif in the forms.
• Developed the application by using the Spring MVC framework.
• Collection framework used to transfer objects between the different layers of the application.
• Developed data mapping to create a communication bridge between various application interfaces using XML and XSL.
• Spring IOC being used to inject the parameter values for the Dynamic parameters.
• Developed JUnit testing framework for Unit level testing.
• Actively involved in code review and bug fixing for improving the performance.
• Documented application for its functionality and its enhanced features.
• Created connection through JDBC and used JDBC statements to call stored procedures.

Environment:Spring MVC, Oracle 11g J2EE, Java, JDBC, Servlets, JSP, XML, Design Patterns, CSS, HTML, JavaScript 1.2, JUnit, Apache Tomcat, My SQL.

Confidential, TN

Java/J2EE Developer

Responsibilities:

• Played an active role in the team by interacting wif welfare business analyst/program specialists and converted business requirements into system requirements.
• Developed analysis level documentation such as Use Case, Business Domain Model, Activity & Sequence and Class Diagrams.
• Conducted Design reviews and Technical reviews wif other project stakeholders.
• Implemented Services using Core Java.
• Developed and deployed UI layer logics of sites using JSP.
• Struts (MVC) is used for implementation of business model logic.
• Worked wif Struts MVC objects like Action Servlet, Controllers, and validators, Web Application Context, Handler Mapping, Message Resource Bundles and JNDI for look-up for J2EE components.
• Developed dynamic JSP pages wif Struts.
• Used built-in/custom Interceptors and Validators of Struts.
• Developed the XML data object to generate the PDF documents and other reports.
• Used Hibernate, DAO, and JDBC for data retrieval and medications from database.
• Messaging and interaction of Web Services is done using SOAP.
• Developed JUnit Test cases for Unit Test cases and as well as System and User test scenarios
• Involved in Unit Testing, User Acceptance Testing and Bug Fixing.
• Implemented mid-tier business services to integrate UI requests to DAO layer commands.

Environment:J2EE, JDBC, Java 1.4, Servlets, JSP, Struts, Hibernate, Web services, SOAP, WSDL, Design Patterns, MVC, HTML, JavaScript 1.2,WebLogic 8.0, XML, JUnit, Oracle 10g, My Eclipse

Confidential . Somerset, NJ

Java Developer

Responsibilities:

• Actively participated in requirements gathering, analysis, design, and testing phases.
• Designed use case diagrams, class diagrams, and sequence diagrams as a part of Design Phase.
• Developed the entire application implementing MVC Architecture integrating JSF wif Hibernate and Spring frameworks.
• Developed the Enterprise Java Beans (Stateless Session beans) to handle different transactions such as online funds transfer, bill payments to the service providers.
• Implemented Service Oriented Architecture (SOA) using JMS for sending and receiving messages while creating web services.
• Developed XML documents and generated XSL files for Payment Transaction and Reserve Transaction systems.
• Developed Web Services for data transfer from client to server and vice versa using Apache Axis and SOAP.
• Used JUnit Framework for the unit testing of all the java classes.
• Implemented various J2EE Design patterns like Singleton, Service Locator, DAO, and SOA.
• Worked on AJAX to develop an interactive Web Application and JavaScript for Data Validations.

Environment: J2EE, JDBC, Java 1.4, Servlets, JSP, Struts, Hibernate, Web services, SOAP, Design Patterns, MVC, HTML, JavaScript 1.2,WebLogic 8.0, XML, JUnit, Oracle 10g, Web Sphere, My Eclipse

Java Developer

Responsibilities:

• Worked on AJAX to develop an interactive Web Application and JavaScript for Data Validations.
• Developed the application under JEE architecture, developed Designed dynamic and browser compatible user interfaces using JSP, Custom Tags, HTML, CSS, and JavaScript.
• Deployed & maintained the JSP, Servlets components on Web logic 8.0
• Developed Application Servers persistence layer using, JDBC, SQL, Hibernate.
• Used JDBC to connect the web applications to Data Bases.
• Implemented Test First unit testing framework driven using JUnit.
• Developed and utilized J2EE Services and JMS components for messaging communication in Web Logic.
• End to End designing of Critical Core Java Components using Java Collections and Multithreading.
• Analysis of different database schemas Transaction and Data warehouse to build extensive reports to Business using SQL & Joins.
• Development of multiple reports to business in quick turn-around time, which halped business to save considerable operational costs.
• Created one of the best programs to notify the operational team on Downtime of one of 250 pharmacies on AP network in a few seconds.
• Created an interface using JSP, Servlet and MVC Struts architecture for pharmacy team to resolve stuck orders in different pharmacies.
• Performance tuned the IMS report to memory leaks and best practices in java to boost the performance and reliability of the application.

Environment: Java 1.4, J2EE (JSP, Servlets, Java Beans, JDBC, Multi-Threading), LINUX (Shell & Perl Scripting), and SQL.