Java Developer

9 years of total experience with 6 years of experience in design and development of Core Java oriented enterprise-based application with strong understanding of Java and J2EE technologies.

• Strong design/development experience with SDLC including Business modeling, Requirements gathering, Analysis and design, Implementation, Testing, Deployment and Integration. Extensive uses of various design methodologies like OOA OOD, UML and Design Patterns.
• Hands on development experience in Core Java and J2EE Patterns like Factory, Singleton, Command, Proxy, Business Delegate, Service Locator, Session Fa ade, and DAO.
• Proficient in developing advanced web-based applications design and development using Java, J2EE, Servlets, JSP, JSTL, Struts, Spring, Hibernate, XSLT, JDBC and Databases.
• Exposure with databases including Oracle and MySqlinvolving writing Stored Procedures and Triggers.
• Good understanding of J2EE Design Patterns and N-Tier Architecture.
• Experienced in using IDEs like Eclipse and NetBeans for Java programming.
• Experience in XML SAX, DOM .
• Experience in working with build tools like ANT and MAVEN, logging framework log4j to perform unit testing.

Designed, developed and tested core Java applications as the Software development life cycle SDLC process , including multi-threading.

Significant knowledge in J2EE including JSP, Servlets, JMS and spring / Hibernate Framework for building client-server applications.

Knowledge and experience in Glassfish Server for webpage development.

Knowledge and experience in JProbe for performance tuning and JVM memory management.

Designed developed and tested DOM APIs in C for mobile internet browser Involved java specification conversions into C.

Designed, developed and tested device drivers for Windows CE using Platform Builder.

Experience in working with C, MATLAB and HTML. I have experience working on UNIX and LINUX Ubuntu, CentOS .

• Team-player with good communication, interpersonal skills and presentation skills and par excellence work-ethic.
• Strong Technical background, excellent analytical ability, problem solving, decision-making, good communication skills, team player and goal oriented, with a commitment towards excellence.

Technical Skills:

PROFESSIONAL EXPERIENCE

Roles Responsibilities:

• Designed and coded application components in an Agile environment utilizing a test driven development approach.
• Spearheaded project planning sessions with managers, business analysts, and team members to analyze business requirements and outline proposed IT solutions.
• Involved in analysis, design and development of legal research search system developed specs that include use cases, class diagrams, sequence diagrams and activity diagrams.
• Implemented APIs with core java components of collections and multi-threading.
• Involved in developing JSF components for the next generation version of the application.
• Developed the application using IoCSpring framework that leverages model view layer architecture, also configured Dependency Injection.
• Used Hibernate ORM tools which automate the mapping between SQL databases and objects in Java. Integrated the Spring and Hibernate framework.
• Extensively used Hibernate in data access layer to access and update information in the database.
• Extensive experience in implementing J2EE design patterns like, Visitor, Singleton, MVC pattern and Data Access.
• Designed and developed SOAP and REST-fulstyle Web Service layer.
• Created entities and mapped them to the data base using Hibernate.
• Implemented a generic interface to Hibernate criteria API for UI search functionality.
• Developed SQL, PL/SQL, stored procedures database application scripts.
• Deployment of web, enterprise java components and messaging components.
• Developed XML Schemas XSD, DTD for the validation of XML documents.
• Developed UDFs in python for Bigata solutions.
• Led a development team
• Improve the architectural integrity of the application s
• Promoted good implementation practices, design, coding standard, testing, code review, etc
• Estimated implementation duration for projects, features, etc
• Assisted in managing the project.

Environment: Java, J2EE, JSP 2.0, PL/SQL, Spring , EJB , JMS, Jasper, Oracle, XML, DOM, SOAP, Netbeans and Eclipse IDE, WebLogic , Hibernate , JDBC, MS SQL Server 2008, CVS, REST-ful Web service.

Roles Responsibilities:

• Involved in analysis, design and development of e-file payment system as well as account transfer system and developed specs that include use cases, class diagrams, sequence diagrams and activity diagrams.
• Implemented APIs with core java components of collections and multi-threading application development.
• Designed the system according to J2EE specifications. Servlets were used as a Front Controller gateway into the system. Helper classes were used to limit the business logic in the servlet. EJB s were used to talk to the database and JSP along with HTML, XML were used to control the client view.
• Experience in JQuery. Developed cross browser compatible and robust web pages.
• Experience in JQuery HTML and JQuery Traversing.
• Involved in designing the user interfaces using Java Script and HTML5.
• Developed and deployed various Entity EJBs and session EJBs.
• Done the complete requirement/system specifications and test specifications.
• Worked with a variety of issues involving multi-threading, server connectivity and user interface.
• Developed master JMS producer, master JMS consumer, and notification manager to implement existing interfaces and hide JMS details from existing legacy notification producers and consumers.
• Created entities and mapped them to the data base using Hibernate.
• Implemented DAO design pattern for database related activities Add, Delete, Modify etc and to interact with the database using JDBC.
• Generated periodic reports based on the statistical analysis of the data from various time frame and division using SQL Server Reporting Services SSRS .
• Environment:JSP 2.0, PL/SQL, Spring, JMS, JNDI, Java, J2EE, Oracle, XML, DOM, SOAP, Hibernate, JPA, JDBC, MS SQL Server 2008, JQuery, Reporting Services SSRS ,Agile

Roles Responsibilities:

• Involved in developing Object Oriented Design OOD , Object Oriented Analysis OOA , Object Oriented Modeling OOM based on Unified Modeling Language UML architecture.
• Develop the business logic using core java, IoCspring.
• Deployed the application on Server.
• Developed unit test cases using Junit and EasyMock.
• Developed Date Access layer using Hibernate and spring framework.
• Worked in POJO based domain model integrated with Hibernated ORM for persistence aggregation of data based on the summarized data of Supply Chain.
• Developed various operational Drill-through and Drill-down reports using SSRS.
• Configured remote service endpoints coded in Java to provide framework for asynchronous RPC communication between Flex clients and Java services.
• Performed automated browser testing in Selenium.
• Use the Next Generation System Architecture to build and maintain the code in SVN repository.
• Assist the testers develop test cases, fix bugs and trouble shoot any environment issues.
• Used JProbe profiler for performance tuning.
• Involved in fixing bugs, feature enhancements, testing and documentation, and monitored them using Quality Center tool.
• Worked with Maven tool to build, test and implement continuous Integration for multiple modules.

Environment: Java, J2EE, JSP 2.1, AngularJS, PL/SQL, Spring, XML, Eclipse STS 2.8.1, JBoss 4.0.2, Hibernate 3.0, MySQL, AS400, CVS,Jasper Reports, Junit, Selenium, Maven, Weblogic Server

Roles Responsibilities:

• End-to-end design of application components using Java Collections and providing concurrent database access using multithreading.
• Multi-threading and NIO based solutions for concurrency.
• Performance tuned the application to prevent memory leaks and to boost its performance and reliability.
• Developed a programs to notify the operational team on response and connection time of clients on the network
• Developed and maintained various unit tests for APIs.
• Analysis of different database schemas using SQL to gather warehouse metrics/trends and develop business reports.
• Closely worked with data analysis team to discuss business insights and recommend actionable tasks. Insights include identifying fast moving products through correlations to various spatial/temporal factors and minimize unused stock.

Environment: Java, J2EE JDBC, Multi-Threading , Linux, SQL, Statistical analysis

Roles and Responsibilities:

• Understanding the JAVA classes and interfaces for implementing DOM APIs in C.
• Designed and developed DOM APIs.
• Performed Integration, Interoperability and rigorous testing.
• Co-ordinated implementation team to find relevant APIs to make them light-weight by elimination of un-used APIs in application
• Tested the light-weight APIs for mobile devices portability.
• Debugged the code for optimization and memory leaks.
• Weekly meetings with on-site coordinators for improving design, documentation, development and testing various modules for improving speed and portability.

Environment: Microsoft Visual C , Java, PDA's and Mobile devices, Visual Sourcesafe.

Roles and Responsibilities:

• Simple implementation of UART driver using C in Linux.
• Involved in understanding the NDIS architecture for IRDA miniport drivers in Platform Builder for Windows CE using C.
• Involved in development of drivers in polling and interrupt modes.
• Studied and implemented native power management modules provided by Windows CE.
• Participated in design and development of IRDA miniport driver.
• Performed user accessibility testing involving transfer of multi format data transfers across different devices for interoperability. Performed rigorous testing by transferring large files between devices.
• Performed integration test to ensure that the drive is compliant with the internal OS architecture.
• Involved in design and development of FAT 32 file system for ARM-based board.
• Involved in a study project to incorporate wear leveling for NAND-Flash drives.

Environment: Paltform Builder, PXA27X, Lauterbach, Visual Source Safe