SUMMARY

• Over 8 years of experience in delivering enterprise solutions in multiple domains like Finance, Telecom, Insurance, Health and other related domains. Expertise in conceptualizing, designing and coding technical solutions.
• Experienced in working with various Software Development Life Cycle (SDLC) methodologies based on Agile, Scrum, Waterfall Model, Iteration in developing web applications using Java, J2EE, EJB etc.
• Expertise in design and development of various web and enterprise - level applications using Java/J2EE technologies.
• Worked Extensively with Open Source Technologies like Struts 2.0/1.1, Hibernate 3.0, Spring 2.0, Spring JDBC, Spring MVC, Spring IOC, EJB, JPA, JSF and Servlets 3.x. Exposure to Spring Frame Work API 2.5.
• Strong experience in Spring Framework modules such as Spring MVC, IOC, AOP, JDBC, JTA, IO, Spring Boot, Spring Microservices, Spring REST, Spring Eureka, Spring Ribbon, Spring Netflix, Spring Zuul.
• Extensively used different Tag Libraries like JSF Tags, Struts Tags, JSTL, Spring Tags, Spring EL, Display Tag.
• Experience in implementing SOA and web services such as SOAP and REST using WSDL, CXF2, JAX-WS and JAX-RS.
• Expertise in XML technologies such as DTD/Schemas, DOM, SAX, XSLT, XPATH, Castor.
• Strong understanding of Micro services patterns - Circuit Breaker/Hystrix, DDD, Aggregator, Proxy Chaining.
• Experienced in Distributed Transaction Management system with Spring JTA Based on Atomikos and Bitronix.
• Responsible for support and maintenance of batch jobs, implemented Spring batch for over 1million transactions.
• Experienced in working with Spring JDBC Templates, JMS Templates, Spring EAI, Spring Rest Templates.
• Experienced in Middleware persistence frameworks like Hibernate/JPA Entities for mapping Java classes using Hibernate Query Language (HQL),HSQL Named Queries, Criteria, Projections.
• Developed applications using latest technologies like EJB3.2, Spring 3.x/4.x, Hibernate3.2/4.x, and REST based Web services (Axis2.0, JAX WS 2.0, JAX RS), Rule Engines (Drools4.1, ILOG), JBPM tools.
• Experienced in UI frame works such as JSF, Facelets, Prime faces, JQuery, Ajax, Google Web Toolkit (GWT), JavaScript, Angular js, NodeJS, ReactJs, BackboneJS, Tag Libraries, Custom Tags.
• Experienced in Client-side validations using Ajax in NodeJS, Angular js, dash boards reports using BackboneJS.
• Experienced in Full stack UI technologies using Grunt js, Gulp Server, Yoman generator for Angular.
• Expertise in using inbuilt and custom AngularJS directives and filters to add functionalities to the web page elements.
• Experienced in Database Design, creation, management and developed complex PL/SQL queries, procedures, Triggers, Stored Procedures, Packages and Views in various databases such as Oracle, DB2 and MySQL.
• Experience in NoSQL databases like MongoDB, Cassandra which offers high performance and easy scalability.
• Proficient in ETL (Extract - Transform - Load) using SQL Server Integration Services 2005 (SSIS).
• Proficient in using Amazon Web Services AWS. Extensive experience focusing on services like EC2, VPC, Cloud Watch, Cloud Front, Cloud Formation, IAM, S3, Amazon RDS, ElastiCache, SNS, SQS.
• Configured AWS Identity and Access Management (IAM) Groups and Users for improved login authentication.
• Experience withDocker containers, leveraging Linux Containers and AMI's to create Docker Images/ containers.
• Experience with messaging systems like Kafka, Kafka event sourcing.
• Experience in implementing Java EE design patterns such as MVC, Singleton, Factory, Abstract Factory, Adapter, Service Locator, Session Facade, DAO, DTO, and Business Delegate in the development of Enterprise Applications.
• Experienced in developing UNIX shell scripts for batch processing, Perl and scripts.
• Extensive use of Use case model, use case diagrams, class diagrams and sequence diagrams using MS VISIO, Enterprise Architect and RAD 7.5/8.0for SDLC process of the application.
• Worked in BI/Metadata/Reporting tools iText (PDF), POI-HSSF (Excel).
• Experience in JUnit frame work with Mockito and Easy mock, Spring Junit Runner and Created Test automation framework using Cucumber Selenium web driver and Selenium Grid.
• Experienced in Development, testing and deployment of enterprise applications on Windows & UNIX platforms using IDE's such as Eclipse, Rational Application Developer (RAD), Netbeans, Intellij 14.x/15.x
• Experience with CICD-ANT, MAVEN, GRADLE, JENKINS, HUDSON, CVS, GIT, GITHUB and logging tools like Log4J.
• Experience in configuring and deploying the applications into Tomcat, WebSphere, Weblogic and Jboss Servers.

TECHNICAL SKILLS

Java/J2EE Technologies: Servlets, JSP, JSTL, JDBC, JMS, JNDI, RMI, EJB, JFC/Swing, AWT, Applets, Multi-threading, Java Networking

Programming Languages: Java JDK 1.4/1.5/1.6/1.8 , C++, C, SQL, PL/SQL

Application/Web Servers: Oracle/BEA Weblogic 8.1/9.1/10.3 , IBM WebSphere 5.1/6.0/6.1/7.0 , Jboss, Tomcat 5.0.28/6.0, Bug tracking, Jenkins.

Frameworks: Struts 2.x/1.x, Spring 3.x/ 2.x, Hibernate 3.x, JSF 1.2/2.0, iBatis

UI Frameworks: JQuery, AngularJS, Bootstrap.

IDEs: Eclipse 3.x, IBM WSAD, IntelliJ, Dream viewer, NetBeans

Web technologies: HTML/HTML5, CSS/CSS3, XHTML,JavaScript, Ajax, JQuery, AngularJS, JSON

Design Tools: Adobe PhotoShop, Adobe After Effect, Dreamweaver

Web Services: JAX-WS, JAX-RPC, JAX-RS, SOAP, REST, SOAP UI, Axis2, Apache CXF, WSDL

XML Tools: JAXB, Apache Axis

Methodologies: Agile, Scrum, RUP, TDD, OOAD, SDLC

Modeling Tools: UML, Rational Rose, Visio

Messaging Tools: JMS, Kafka, Rabbit MQ

Testing technologies/tools: JUnit, JMeter, HtmlUnit, Jasmine, Karma, Protractor, Selenium, Jenkins, Docker

Database Servers: Oracle 8i/9i/10g/11G, DB2, SQL Server 2000/2005/2008 , MySQL

Version Control: CVS, SVN, Git

Build Tools: ANT, Maven, Gradle

Metadata / Reporting Tools: Jakarta POI-HSSF

Platforms: Windows 2000/98/95/NT4.0, UNIX, Windows 7

PROFESSIONAL EXPERIENCE

Confidential, Cincinnati, OH

Sr. Java/J2EE Developer & Full Stack Developer

Responsibilities:

• Responsible for Agile implementation and practices for Scrum meetings.
• Worked with Advanced Java 1.8 features like Lambda for adding functionality processing capability and Stream API to facilitate pipeline processing and method to eliminate elements based on the criteria.
• Involved in developing Thread Safe blocks for multithread access and distributed transaction management.
• Designed and developed the End Points (Controllers), Business Layer, DAO Layer using Hibernate/JDBC template to fetch data from database, using Spring IOC (Dependency Injection).
• Heavily used Spring Inheritance, Auto-wiring, Core Container, Security, AOP, ORM modules as part of migration from EJB to spring, Spring Quartz for scheduling tasks to generate reports and emails to clients.
• Created and injected Spring services, Spring controllers and DAOs to achieve dependency injection.
• Implemented Autowire by Name and by Type in constructor arguments to enable the Spring Bean.
• Implemented SOA to develop Spring Restful/Micro Services and implemented Spring Eureka, Netflix, Ribbon as part of Services Discovery using Apache Axis.
• Used Micro service architecture with Spring Boot based services interacting through a combination of REST and Apache Kafka message brokers and built the Real-Time Data Pipeline using Apache Storm and Spark.
• Used SOAP UI, Postman, Rest Client, Spring Mock MVC, Spring 4Junitfor testing the web services.
• Extensively used Hibernate Relational mappings (One-To-Many, Many-To-Many) in the secondary project.
• Extensively worked on Hibernate Cache, Query, Criteria and Transactions in secondary project.
• Upgraded Spring Rest Controllers and Services classes to support migration to Spring framework.
• Involved in Angular, HTML5 and CSS3 code optimization, DOM loading and cross browser compatibility.
• Upgraded existing UI with HTML5, CSS3, JQuery and Bootstrap with AngularJs interaction.
• Effective use of CSS3 features, such as creating borders and background, etc. and used LESS/SASS Preprocessor.
• Extensively used Angular JS 2 directives, filters, services, bootstrap to support Desktop and mobile versions.
• Created custom Angular JS directives to implement some of the specific functionalities.
• Implemented REST based web services using JAX-RS annotations, Jersey provider and consumed using HTTP services from angular JS modules.
• Developed various generic JavaScript, Angular functions to implement client side validations.
• Developed Application to asses JSON and XML from Restful web service from consumer side using Angular JS.
• Experience in Building Web Service Contracts in SOA Service Manager, Orchestration, performance tuning.
• Implemented Spring Circuit breaker pattern, integratedHystrix dashboard to monitor Spring micro services.
• Developed quality code adhering to Scala coding Standards, Spark scripts by usingScalaShell commands.
• Implemented Authentication & Authorization with Site Minder and Spring security.
• Worked with KafkaCluster using ZooKeeper and maintained shared data with robust techniques.
• Apache Mesos and Kubernetes were used as the best ecosystem to deploy and manage microservices.
• Used PL/SQL stored procedures for applications that needed to execute as part of a scheduling mechanisms.
• Used Toad to interact with oracle data base, performance tuning db execution plans.
• Wrote SQL queries, stored procedures, triggers and enhanced performance by running explain plans.
• Hands on experience with MongoDB Installation, Configuring, Monitoring and Designing Shared Environment.
• Used Amazon Web Services (AWS) like EC2, S3, cloud watch and Elastic Bean Stalk for code deployment.
• Developed Applications using Rule Engines-Jboss Drools 4.x,Work flows, Human tasks to implement Business rules validations and provided Drools Dashboard for Business users.
• Worked on creation of custom Docker container images, tagging, pushing images, integration of Spring boot.
• Created the Docker containers and Docker consoles for managing the application life cycle.
• Worked with the Node package manager(NPM) along with Karma, Jasmine, Grunt and Bower for test and build.
• Used Maven as build and dependency management tool for creating EAR, WAR and JAR file to be deployed in application servers and integrated with SVN, Jenkins, and Jenkins Jobs.
• Resolved bugs/defects in application by coordinating with team members of the project to assure a positive outcome using JIRA and fixed defects identified during QA, UAT and Production.
• Used log4j for logging GIT, SVN as version management, JIRA for defect management system.
• Developed test cases and performed unit testing using Junit and configured Karma test runner for the project and documented test plans and tests cases using Jasmine.
• Nginx isused as reverse proxy server for HTTP, HTTPS and it is also used for server’s load balancing with cache.
• Administered and Deployed the application intoJBoss application server.

Environment: Web Services, Spring 4.x, Hibernate, HTML5, JSP,JavaScript, JQuery, AJAX, GWT,CSS3, Angular JS, SOAP UI, XML, WSDL, Apace Mesos, Kubernetes,Java1.8, J2EE,Scala, Kafka, Eureka, Agile Methodology, JIRA processes, GIT, Design Patterns, PL/SQL, Junit, WebSphere MQ, Maven, Eclipse IDE, CVS and Oracle 11g.

Confidential, Southfield, MI

Sr. Java Full Stack Developer

Responsibilities:

• As a Java developer involved in back-end and front-end developing team. Took part in developing, maintaining, reviewing and supporting quality code and services.
• Involved in Daily SCRUM meetings and weekly SPRINT Meetings.
• Implemented various features of spring framework such as Dependency Injection, IOC, Annotations and Spring integration with Hibernate Framework (Persistence Layer).
• Implemented application architecture of the System is based on Spring MVC and J2EE specifications.
• Used Multithreading for situations to avoid freezing of GUI where one thread can run GUI code while other thread can complete DB or Network job in background without freezing application.
• Configured Swagger-UI registered Micro service with Eureka server to monitor service health check.
• Experienced in Security-System development for Web Applications using Spring Security.
• Involved and developed all phases of security implementation using spring security system against modes of authentications: LDAP authentication, Database authentication and Pre-Authentication.
• Integrated application with Spring Security by using jsp tags to provide UI level spring security.
• Experience in working with Spring Quartz framework and developed various quartz jobs
• Implemented Dynamic job scheduling according to the business need same using Quartz scheduler.
• All the functionality is implemented using Spring IO / Spring Boot and Hibernate ORM.
• Worked with Spring Actuator for configuring Spring Boot application, monitoring and invoking HTTP endpoints.
• Used Spring Hateoas that follows Hateoas principle to create REST representations when working with Spring.
• Implemented Java EE using Spring MVC, Spring IOC, Spring transactions and Spring Security modules.
• Rearchitect monolithic service into micro services based architecture using Pivotal Cloud Foundary (PCF).
• Implementing or exposing the Micro services to base on RESTful API utilizing Spring Boot with Spring MVC.
• Developed Applications using Rule Engines, Drools 4.x, Work Flows, Human tasks and ILOGto implement business rule validations and provided Drools Dashboard for business User Roles.
• Implemented the application using design patterns such as Session Facade, Business Delegate, Bean Factory, Singleton, Data Access Object, and Service Locator.
• Implemented and developed UI components using Angular JS features like dependency Injection, Models, data binding, directives and controllers which eliminated much of the code to be written.
• Developed test cases for Angular JS using karma and grunt as test runners.
• UI design and development using Struts, HTML5, CSS3 JavaScript, AJAX, JSON, JSF, richfaces and myfaces.
• Develop various screens for the front end using Angular JS and used various predefined components from NPM.
• Used Java Messaging Services (JMS) for reliable and asynchronous exchange of important information such as payment status report and implemented Service Oriented Architecture (SOA) using JMS.
• Worked with JAXB, SAXP and XML Schema for exporting data into XML format and importing data from XML format to data base and JAXB in the web service's request response for data marshalling and unmarshalling.
• Used PL/SQL stored procedures for applications that needed to execute as part of a scheduling mechanisms.
• Defined strategic initiatives on Continuous Integration & Delivery (CI/CD) model with Test-driven development, Extreme programming (XP), and build automation, in an AGILE development environment to help, respond quickly to business needs and to ship world class Quality products.
• Utilized Hibernate for Object/Relational Mapping (ORM) purposes for persistence onto the Oracle database.
• Integration of automation batch run job with Jenkins. Worked with Jenkins Continuous Integration tool and wrote ANT Scripts to automate the build and deploy process and used GIT as version management system.
• Used JUnit for unit testing of application, log4j for generating run-time logs and JIRA for defect management.
• Built the package, Administered and deployed applications into JBoss and WebLogic Server.

Environment: Java 7.0, Spring 3, Hibernate 4.2, Spring batch, Spring quartz, Spring security, Spring Jta, Spring Boot, Spring Hateoas, JPA, Java Scripts, AngularJS 1.5, HTML 5.0, CSS3, JMS, JAXP (SAX & DOM), JBoss, Eclipse, Oracle 11g, RESTful, log4j, Junit, XML, Web Services, GIT.

Confidential, WaterLoo, IA

Sr. Java/J2EE Developer

Responsibilities:

• Involved in various phases of Software Development Life Cycle (SDLC) of the application like Requirement gathering, Design, Analysis and Code development.
• Generated Use case diagrams, Class diagrams, and Sequence diagrams using Rational Rose
• The application is designed using J2EE design patterns and technologies based on MVC architecture
• Used J2EE design patterns like Value Object Pattern, Session façade, Singleton, Factory and DAO.
• Spring with Tiles Framework is implemented for a common look in all the presentation views.
• Integrated struts MVC with spring DI and Spring hibernate DAO
• EJB Session Beans were used to process requests from the user interface and CMP entity beans were used to interact with the persistence layer.EJB3.0 annotations are used to synchronize Data base tables through XML.
• Designed applications that execute on various browsers such as Internet Explorer, Mozilla Firefox, Google Chrome, and Opera using various debugging tools like Firebugs/IE Developer Tools.
• Continuous integration services are provided for software development using JENKINS
• Utilized Object Oriented Programming in JavaScript and DOM structure to implement various functionalities.
• Extensively used the JavaScript and JQuery plug-in to fetch and display the data on web pages and create interactive features in the application. Worked with JQuery concepts like selectors, and filters.
• Developed EJB MDB’s and message Queue’s using JMS technology.
• Implemented security for different frontend views based on the access privileges.
• Involved in writing XML validation classes using Struts validation framework.
• Designed the user interfaces using JSPs, AJAX and Struts Tags.
• Used XML Web Services using SOAP to register agents using non-java application.
• Developed services that are reusable and interoperable, based on SOAP, WSDL, JAXWS, JAXRPC Web services.
• Used JMS for the asynchronous exchange of critical data and events among J2EE components. Publisher-Subscriber method was used for data loading and Point-To-Point method of JMS was used for event processing
• Involved in requirements gathering and Capacity planning for Multi-Datacenter (four) and Cassandra Cluster.
• Used Cassandra (CQL) for database and Redis for cache, for storing and fetching the data.
• Used RAD IDE based on Eclipse for writing code for JSP, Action Classes, Struts and spring beans.
• Involved in writing DAO, DTO’s using Hibernate DAO Support.
• Implemented persistence layer using Hibernate that uses the POJOs to represent persistence database tuples.
• Developed JUnit test cases for DAO and Service Layer methods.
• Used SVN for version control of the application and Log4J to capture the log that includes runtime exceptions.
• Developed the ANT scripts for preparing WAR files used to deploy J2EE components.
• Interacted with quality assurance team for requirements gathering and analysis.

Environment: Core Java, J2EE, JSP, Struts, Spring, OOAD, Oracle 10g, Cassandra, Redis, HTML, EJB3, AJAX, JMS,XML, Design Patterns, ANT, Rational Rose, IBM RAD IDE, Weblogic Application Server 10.x, Hibernate 4.0, LOG4J, SVN, TOAD, JUNIT, UML.

Confidential, Wayne, NJ

Sr. Java/J2EE Developer

Responsibilities:

• Involved in all phases of SDLC including Requirements, Collection, Analysis of the Customer Specifications, Development, Handling Change Request, Bug Fixing, Code Review and Customization of the Application.
• Created and deployed web pages using HTML, CSS, JSP, JavaScript and jQuery.
• Developed the Login, Policy and Claims Screens for customers using AJAX, JSP, HTML, CSS3, JavaScript, jQuery.
• Wrote code to fetch data from web services using jQuery AJAX via JSON response and updating the HTML pages.
• Involved in converting the custom tags from Struts to JSF Prime faces.
• Involved in designing of the application following Model-View-Controller (MVC) architecture.
• Implemented MVC architecture using Spring,Hibernate frameworks for database persistence.
• Implemented Java EE components using Spring MVC, Spring IOC, Spring transactions and Spring security modules and also involved in Coding Server pages using JSP.
• Implemented persistence layer using Hibernate that uses the POJOs to represent the database tuples.
• Implemented Hibernate to map all the tables from different data sources to make database updating.
• Involved in writing DAO, DTO’s using Hibernate DAO Support.
• Excellent implementation knowledge of Distributed Web Services/ Enterprise / Web / Client- Server systems using Java,J2EE(JSP,Servlets,JDBC, EJB, JNDI, JMS, JAXP, JAXB, SDO, JPA), XML, SOAWeb services, ESB, JINIand Java Spaces Technology.
• Used Tomcat as Web server to implement the Java JSP,Servlets,JDBC, EJB.
• Used JMS for the asynchronous exchange of critical data and events among J2EE components. Publisher-Subscriber method was used for data loading and Point-To-Point method of JMS was used for event processing.
• Developed Various CRUD operations by using RESTful web services.
• Developed DAO interfaces & implementations for database related operations using Hibernate and JAXB.
• Prepared SQL/PL-SQL scripts and Stored Procedures required to implement design get it fine-tuned from DBAs.
• Used XML Web Services using SOAP to register agents using non-java application.
• Used RAD IDE based on JSP, Action Classes, Struts and Spring beans.
• Used Tomcat Server to deploy the application. Used Log4J to capture the log that includes runtime exceptions.
• Used Maven build tool to build and deploy the application.
• Developed the ANT scripts for preparing WAR files used to deploy J2EE components.
• Used Apache Storm to get delivery responses from end-to-end and also from streaming the transaction process.
• Created various unit test cases and integration tests for the DAO and Service using JUnit.
• Used Junit for testing the application. Developed JUnit test cases for DAO and Service Layer methods.
• Used Windows Azure Service Bus to deploy the build into the cloud by creating multiple instances.
• Designed the data flow for the client-side screens and the object interaction layer for the server-side components using Rational Rose. Used SVN version controller to manage the code versions.
• Interacted with Quality Assurance team for requirements gathering and analysis.

Environment: Core Java, java 1.7 J2EE 1.4, JSP 2.0, JSF, DB2 EJB, struct 1.x, JMS, JSTL JNDI, Spring 3.0, Multithreading, JDBC, Oracle, DHTML, XML, DOM, SAX, ANT, JavaScript, Ajax, HTML, Junit, Apache Storm0.8.2, PL-SQL, SOAP web services, REST Web services, Tomcat server, Servlets, Windows Azure, Rational Rose, JSF, WSAD 5.1.2, jQuery, Hibernate 3.0, LOG4J, CVS, NoSQL.

Confidential, Chicago, IL

Java/J2EE Developer

Responsibilities:

• Designed the application using the J2EE design patterns such as Session Facade, Business Delegate, Service Locator, Value Object, Value List Handler, Singleton.
• Developed Use case diagrams, Object diagrams, Class diagrams, and Sequence diagrams using UML.
• Developed presentation tier as HTML, JSPs using Struts Framework.
• Used Struts Validation Framework for dynamic validation of the user input forms.
• Developed the middle tier using EJBs, Java Servlets and debugged the servlets and EJB with WebSphere Application server and also developed Session, entity beans and message drivenbeans.
• Used Callable objects for implementing multithreading for parallel execution of independent events.
• Created Managed Beans for handling JSF pages and include logic for processing of the data on the page.
• JQuery opinionated about how a CRUD (Create, Read, Update, Delete) application should be built.
• Prepared high and low-level design documents for the business modules for future references and updates.
• Deployed the application on WebSphere application server in development and production environment.
• Undertook the Integration and testing of the different parts of the application.
• Created and written automated regression tests using Jmeter scripts for load testing.
• Developed automated Build files using ANT.
• Used Subversion(SVC) for version control and log4j for logging errors.

Environment: Java/J2EE, Struts 1.2, Tiles, EJB, Multithreading, JMS, Servlets, JSP, JDBC, HTML, CSS, JavaScript, JUnit, Websphere 7.0, Eclipse, SQL Server 2000, log4j, Subversion, Windows NT

Confidential

Java/UI Developer

Responsibilities:

• Designed and developed necessary UML Diagrams like Case, Class, Sequence, State, and Activity diagrams.
• Used Rational Application Developer (RAD) for development.
• UsedCollections, Multithreading, Exception Handling, Generics andJava I/Oto implement business logic.
• Extensively applied various design patterns such as MVC-2, Front Controller, Factory, Singleton, Business Delegate, Session Façade, Service Locator, DAO etc. throughout the application.
• Implemented the project as a multi-tier application using Struts along with JSP for the presentation tier.
• Used XML for the data transfer to the different layers and HTML and JavaScript for the front-end development.
• Used the Struts Validation Framework for validation and Struts Tiles Framework for reusable Presentation components at the presentation tier.
• Developed various Action Classes that route requests to appropriate handlers.
• Developed Session Beans to process user requests and Entity Beans to load and store information from database.
• Used JMS for reliable and asynchronous messaging the different components.
• Used JDBC to retrieve data from the Database and did the inserting and deleting operations in the database.
• Developed Stored Procedures and complicated queries for MySQL.
• Involved in designing unit test plans and developing test cases using Junit during the development phase.
• Extensively used log4j for logging throughout the application.
• Used CVS for efficiently managing the source code versions with the development team.

Environment: Spring 2.5, hibernate, JSP, Core Java, web services, Ajax and Java Script, XML, Oracle 9i & Web logic 9.2, JavaScript, XML, Java J2EE 5, Struts, JUnit, CVS, Log4j, Web Services, RAD, MySQL, JUnit, Log4j, Web sphere Server, HTML, Windows XP, Unix