PROFESSIONAL SUMMARY:

• Over 12 years of experience in Information Technology field.
• Over 8 years of professional experience in all phases of SDLC with various Client/Server and web - based Applications using OOP, Java/JEE technologies.
• 4 years of experience in Visual Studio .NET 2003/05/08/10/12 with Framework 1.1/2.0/3.5
• Have worked on Hadoop 1.0.1 and NoSQL Database like HBase and Cassandra with Java for MapReduce.
• Expertise in designing and developing Enterprise Applications in JEE using Core Java, Servlets, JSP, JDBC.
• Hands on Experience in C#, ASP.net, WCF, WPF and SharePoint 2010.
• Hands on Experience in Agile and TDD(Test Driven Development)
• Hands on Experience on Spring Framework 3.0, Struts, Hibernate and logging framework Apache Log4j
• Extensive experience in Integrated Development Environment (IDE) such as Java Build tools using Apache Ant and Maven 3.0.4.
• Strong Implementation understanding on Object Oriented Programming (OOP) and Core Java design patterns.
• Proficient in using JEE Design Patterns like Singleton, DTO, DAO, Factory, Session Façade.
• Expertise in Client Side Designing and Validations using HTML, DHTML, CSS, Java Script, ExtJS, JSP, Struts Tag Library, AJAX.
• Good Hands on experience with Apache Tomcat.
• Well versed in using REST and SOAP UI for Web Services testing.
• Experience in using Axis SOAP Engine, WSDL2Java tool for building Javaproxies and skeletons from WSDL documents.
• Strong technical background, excellent analytical ability, good debugging skills, good communication skills, team player, goal oriented and ability to quickly learn new technologies as required.
• Responsibilities have included leading small teams, coordinating and interacting closely with various teams of interfacing application.
• Hands on Experience in handling critical Business applications Issues and handling failure recoveries.
• Expertise in troubleshooting various pre and post implementation Issues.
• Have good Knowledge of Zookeeper

TECHNICAL SKILLS:

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

Programming Languages: Java 1.7, .NET 3.5, C#, WCF, WPF, SQL, PL/SQL, JSP, JDBC, Servlets, Groovy Grails

Frameworks: Struts1.2, Spring 2.5, Hibernate 3, iText2.0

Application Servers: Apache Tomcat 7.0, IBM Websphere8.0/6.1, Glassfish2.1, iPlanet6, BEA Weblogic8.1, Jboss, IIS7 and SharePoint 2010

Frontend technologies: HTML, Java Script, CSS, Ajax, jQuery, XML, ExtJS4.0

Version control: CVS, PVCS, Subversion.

Operating System: Windows, Unix, Linux

Defect Tracking tool: BMC Remedy and HP Quality Center.

Database: Oracle 8i/9i/11g, Cassandra 2.0.9

Others: TestNG, Junit and Nunit testing.

Distributed Technologies: Web Services, REST, RMI, and JAX-RPC

PROFESSIONAL EXPERIENCE:

Confidential (Alpharetta, GA)

Hadoop Developer

Responsibilities:

• Developed MapReduce programs using java to parse the raw data, populate staging tables and store the processed data in partitioned tables in the EDW.
• Created Hive queries that helped market analysts spot mobile data usage trends by comparing fresh data with EDW tables and historical metrics.
• Using Oozie to automate data loading into the Hadoop Distributed File System and PIG topre-process the data.
• Provided design recommendations and thought leadership to sponsors/stakeholders that Improved review processes and resolved technical problems.
• Managed and reviewed Hadoop log files.
• Tested raw data and executed performance scripts.
• Shared responsibility for administration of Hadoop, Hive and Pig.
• Responsible for developing RESTful web services
• Configuration Management using Zookeeper.
• Used agile method for software development.

Environment: Java 1.7, Cassandra 2.0.9, Zookeeper 3.3.3, PL/SQL, Hadoop 1.0.1, Pig 0.11.0, Hive 0.10.0, Oracle Coherence 3.7.1.10, Linux, Eclipse, TIBCO, Contivo, iLog, Splunk, JMS, SOAP and RESTful Web service, Git, JAXB, Oracle Database, Jenkins and Maven.

Confidential (Alpharetta, GA)

Java /Cassandra Developer

Responsibilities:

• Worked on HLD (High level design) and LLD(Low level design) document
• Responsible for LDAP/AD Integrating with application.
• Responsible for implementing enterprise level Application Authorization Framework (AAF).
• Responsible for implementing business logic using core java 1.7
• Responsible for creating models using Model Driven Architecture (MDA)
• Responsible for Data modeling in Cassandra.
• Responsible for storing and retrieving data from Cassandra(L3 cache) and Oracle Coherence (L1-Cache)
• Schema Integration from different source system.
• Responsible for continuous Integration using Jenkins 1.560
• Configuration Management using Zookeeper.
• Responsible for developing REST API and SOAP Web Methods
• Worked basic Linux commands.
• Used agile method for software development.

Environment: Java 1.7, Cassandra 2.0.9, Zookeeper 3.3.3, Oracle Coherence 3.7.1.10, Linux, Eclipse, SOAP and RESTful Webservice, Git, Jenkins and Maven.

Confidential (Pittsburgh, PA)

Java Big Data Developer

Responsibilities:

• Developing MapReduce using core java 1.6
• Responsible for Data ingestion in CFS (Cassandra File System)
• Responsible for Data modeling in Cassandra.
• Schema Integration from different source system.
• Data Modeling for Global System
• Used log4j for logging and debugging and TestNG for testing.
• Worked on Spring framework 4.0 to leverage on the tiered structure and the IOC (Dependency Injection).
• Development using eclipse IDE
• Responsible for developing an application using Grooy Grails
• Responsible for deployment using MAVEN 3.0.4 to all the environments using MAVEN 3.0.4 and making sure of ST and UAT testing is signed off.
• Responsible for continuous Integration using Jenkins 1.560
• Having good knowledge in Zookeeper

Environment: Java 1.6, Hadoop 1.0.1, Pig 0.11.0, Hive 0.10.0, Eclipse, Groovy Grails 2.3, ExtJs 4.0, AJAX, Oracle, Maven 3.0.4, Jenkins 1.560, Spring framework 4.0, REST, Cassandra

Confidential (Pittsburgh, PA)

Team Leader

Responsibilities:

• Development/coding using Java, SWING, Spring 2.0, Hibernate.
• IDE used while coding is Eclipse.
• Responsible for deployment using ANT to all the environments using Ant and making sure of ST and UAT testing is signed off
• Responsible to SQL, PL/SQL and Stored Procedures as part of database interaction
• Extensively used Hibernate for Object relational Mapping for data persistence.
• Unit testing, bug fixing in multiple environments (DEV/INT/CERT/PROD) and reproduce bugs for fixing and code review of individual modules in the application.

Environment: Java 1.5, GWT 2.1.0, Swing, Spring 2.0, Hibernate, WebServices, SQL Server2005, XML, COM+, MicrosoftExcel 2003, Microsoft Word 2003.

Confidential

Senior Developer

Responsibilities:

• Development/coding using Java, SWING, Spring, Hibernate.
• Prepared high level and low-level system design documentation for the requirements.
• Resolving technical issues providing product support, identifying and resolving product issues, bug fixing, enhancements, product maintenance, preparing and executing test cases.
• Resolving product issues identified by IT Client services team and reporting the resolved issues.

Environment: Java, SWING, GWT 2.1.0, XML, Eclipse IDE, SQL Server 2005, WebServices, Spring, Hibernate.

Confidential

Senior Analyst

Responsibilities:

• Participated in designing application framework, which provides common business services to be consumed by various clients.
• Developed server side components and deployed using IIS application server.
• Implemented java components using GOF Design Patterns such as command, decorator, facade, singleton, factory, Facade, Service-Locator, Business Delegate, DataAccessObject (DAO) and MVC.
• Written parsers and data handlers to interface with various back-end data sources.
• Participated in code reviews and load testing.
• Monitored performance during the load testing of new APIs.
• Written NUnit test cases providing 80% code coverage.
• Acting as build master for various releases and responsible for moving the code to Dev and QA environments.

Environment: VisualStudio 2005, Windows 2000, C#, Asp.Net, SQL Server 2000, Microsoft Content Management Server, Share Point, WCF and WPF.

Confidential

Senior Developer

Responsibilities:

• Developed functional and technical specifications, pseudo code, test cases and test plans.
• Graphical User Interface Designing. Designing, Coding, Debugging, Testing and Deployment.
• Resolving technical issues providing product support, identifying and resolving product issues, bug fixing, enhancements, product maintenance, preparing and executing test cases.
• Resolving product issues identified by IT Helpdesk team and reporting the resolved issues.
• Developed Custom components to implement business rules.
• Technical Quality Analysis.
• R&D Activities.

Environment: Windows 2000, Java, SWING SQL Server 2000, COMTI, Host Integration Server 2000, WindowsServer2003, SharePoint 2003, Web Services, XML.

Confidential

Developer

Responsibilities:

• Implementation using Core Java, SWING, Spring, Hibernate.
• Used Apache log 4j Logging framework for logging of trace and Auditing.
• Remedy is used as Defect tracking tool.
• Key Mentor for offshore team’s ongoing learning.
• Used Subversion and Perforce as Version Control.
• Tracing requirements throughout development process and verifying all Process Adherence.

Environment:  Core Java, SWING, XML, Eclipse 3.3.2, Oracle, SQL, log4j, Tomcat 5.0, JRun, Spring, Hibernate, HTML, JavaScript, Maven, Apache Ant. TOAD, Remedy, SQL Server, Apache.

Confidential

Developer

Responsibilities:

• Design and Development.
• Used C# and XML.
• Created Ad-Hoc Reports using Crystal Report.
• Worked on Multithreading.
• Testing - unit testing using Nunit & integration testing.
• Other responsibilities include Devolvement, Code Reviews, Nunit Test creation, Validation of the Standards
• My contribution to this project starts from the front end design to the XML schema design.

Environment: Visual Studio 2003, .Net 1.1, C#, Windows XP, XML.

Confidential

Developer

Responsibilities:

• Developed functional and technical specifications, pseudo code, test cases and test plans.
• Graphical User Interface Designing. Designing, Coding, Debugging, Testing and Deployment.
• Technical Quality Analysis
• Peer Reviews
• R&D Activities

Environment: Visual Studio 2003, C#, Python, Windows XP, XML.