SUMMARY:

• To pursue a challenging and growth - oriented career in a progressive organization and to enhance the level of my technical knowledge and ability to work in-group.
• 8+ years of IT experience in Java/J2EE Application Development Object Oriented Programming Client/Server architecture and Web based environments.
• Strong working experience in SDLC methodologies like Agile, RUP (Rational unified Process).
• Extensive Experience on different frameworks like Struts 2.3/1.2/1.1, Spring 4.0/3.2.5/3.1/2.5 , and Hibernate 4.1.9/3.5.0/3.0/2.0.
• Exposure to Microservices, Cloud Native, 12 Factor App, API First, Serverless architectural style and best practices.
• 2+ Years of experience in design, restructuring and development of micro services using NETFLIX OSS Stack/AWS/Domain Driven Design, spring boot, spring hystrix, spring eureka, spring rest controllers and other spring templating stack.
• Experience in XML related technologies likeJAXP, JAXB, XML, XSLT, XSD, XPATH, DTD, and XML Schemas and Implemented client-side validation using JavaScript.
• Experience in usingDOMandSAXparsers to process, validate, parse and extract data fromXMLfiles.
• Experience with Collections framework is designed around a set of standard interfaces. Several standard implementations such asLinkedList, HashSet,andTreeSet, of these interfaces are provided.
• Extensive experience in implementation of the version control softwareSVN, VSS, CVS.
• Strong System Analysis, de-bugging, documentation and data analyzing skills
• Very strong on core java concepts and J2EE technologies such as servlets, Struts, JDBC, JSP, EJB, JSF, Spring Core, Spring MVC, Spring boot, Spring AOP, Spring Security, Spring ORM, Spring MVC, Hibernate.
• Implemented web security for REST Webservices using spring security annotations such as Enable Web Security.
• Used Spring AOP for dividing business logic with logging in enterprise applications.
• Integrated spring with hibernate using Hibernate Template to perform CRUD operations on database.
• Experience with Physician or Nurse-facing clinical applications
• Working knowledge of HL7, CCD and other healthcare related integration mechanisms
• Experienced in developing Front-End usingJSP, JavaScript’s, JQUERY, HTML and Flash.
• Hands on experience in writing and consuming Webservices such as SOAP and REST.
• Implemented REST Webservices using JAX-RS jersey implementations for both XML and JSON interfaces.
• Implemented Microservices use their own persistent storage area (c.f. sharding) with data consistency maintained using data replication or application level events.
• Developed value object/POJO’s to hold data between Data layer and business layer.
• Used HSM, the crypto processor for the protection of crypto key life cycle.
• Used AES key for the encryption of stored data in the Gateway.
• Worked on different application servers such as JBoss, WebLogic, WebSphere and web server Apache Tomcat.
• Experience in design and development of SOA based projects. Good understanding of micro services architecture. Well versed in building loosely coupled ESB layers. Developed SOAP and Restful Web Services using WAS JAX-WS, Apache Axis2, JAX-RS (Jersey), and Spring WS and CXF web services. Used SOAP UI and Chrome Postman plugin for services testing.
• Good Understanding of JSP, Servlets, JDBC, EJBs3.0, JDBC, JNDI, RMI specifications.
• Experienced in building Enterprise level business components using EJB interfaces, EJB 3 annotations and call back methods.
• Experience working on Dockercomponents Like Docker Engine, Hub, Machine, Compose and Docker Registry.
• Experienced in integrating different applications using Java messaging system (JMS), topics, Queues, messaging brokers like Web sphere MQ and Integration technologies like Mule ESB.
• Experienced in implementing presentation layer using web technologies such as HTML5, JSF, AJAX, JQuery, Angular JS, CSS, CSS3, Java script.
• Wrote JSF back beans for UI components to handle events and implemented custom validators to validate different types of data.
• Experience in building end to end web applications using MEAN stack with Angular1.X, 2.
• Experience with features of Angular 2 such as directives, dependency injection, modules and routing.
• Developed newcross-browser accessibleinterfaces usingBootstrap, JavaScript with ES5,andAngularJS.
• Bootstrap used along with AngularJS in creating the Application..
• Used Jenkins for continuous integration of the application and worked closely with build and release team.
• Hands on UNIX and good knowledge over it in developing the Operating System.
• Hands on experience in using different types of version controls (GIT, Tortoise SVN, CSV).
• Integrated logging frameworks such as Log4J and commons for logging and debugging the application.
• Used ANT, Maven and Gradle scripts for building and deploying the application in web/App servers.
• Experienced working with different software methodologies like waterfall and agile methodologies.
• Experienced working with test driven development (TDD) approach, pair programming, ATDD.

TECHNICAL SKILLS:

Java/J2EE Technologies: Jdk1.8,J2SE, J2EE, JDBC, JSP, JPA, Servlets, MVC, SOA, REST and SOAP Web Services, Drools, JMS, EJB, Mule ESB, Jenkins

Frameworks: Spring 3, Spring Core, Spring MVC, Spring Security, Spring AOP, Spring Boot, Spring ORM, Spring Stack, Hibernate, Mybatis, Free marker, JSF, Struts, JQuery.

Database: Oracle (SQL & PL/SQL), My SQL, Postgress, ETL.

Methodologies: Agile, Waterfall model, Scrum

Version Control: SVN, CSV, GIT

XML Related and Others: XML, DTD, XSD, XSLT, JAXB, JAXP, XSL, JAXB, SAX, DOM

Web Services: Restful services, WSDL, Angular Js, SOAP, JAVA-WS, CXF, JAX-RS, JERSE, Apigee

Design Patterns: Singleton, MVC, Façade, Factory.

Areas of Knowledge: SOA, NOSQL, RESPONSIVE UI, Continuous Integration, Microservices, TDD, BDD, ATDD

PROFESSIONAL EXPERIENCE:

Confidential -Austin, Tx

Sr. Java Developer

Responsibilities:

• Implemented Struts Model View Controller architecture to develop presentation tier and business layer.
• Configured the struts-config.xml files to create and modify the form beans, Action classes and action mappings
• Used Spring Framework to develop lightweight business components.
• Dealt with Web based security by providing security to websites, web applications and web services. Applied the security specifically to internet and web systems.
• Used Eclipse as the IDE to develop, test and deploy the application.
• Developed Struts Actions that grabs data from the forms, does validation and calls services and data access objects DAO’s.
• Reproduced security issues and the remediation methods for vulnerabilities.
• Used stored procedures & triggers in SQL database
• Identified vulnerabilities and executed the vulnerability remediation methods
• Used XML Gateway to secure, mediate and manage XML traffic
• Worked on preventing Cross site scripting vulnerability in the web applications.
• Implemented Spring Boot Microservices using Netflix OSS stack.
• Implemented NodeJS for the creation of web servers and networking tools using Java Script and collection of modules that handle core functionality.
• Involved in designing the Design Document, including Sequence Diagrams, Class Diagrams and Object Models.
• ImplementedResponsive web design (RWD)and mobile friendly design usingIonic framework; fully utilized itsJavaScript UI library, including navigation, modal, slide box, scroll, action sheet and more andAngularJS.
• Involved in creatingAJAXcalls using AngularJS to handle data operations including ordering and filtering.
• Experience with the features ofAngular2such as directives, modules and routing
• Used Jenkins for continuous integration of the application and worked closely with build and release team.
• Performed Unit testing using JUNIT, System, Regression, and Integration Testing.
• Involved in various internal releases of the application and supported the application modules during testing and pre-production phases.
• Created JUnit test cases and test suites for testing the application
• Used HSM, the crypto processor for the protection of crypto key life cycle.
• Used AES key for the encryption of stored data in the Gateway.
• Used GIT version control for the software development and other version control tasks
• Involved in building the code & deploying on Web Logic application server.

Environment: JDK 1.8, Spring Boot, Netflix OSS, JSF, AJAX, Spring 4.0, Angular JS, Jenkins, AWS Cloud, Bootstrap, Mongo dB, Hibernate, HTML5, Web Logic App server, JMS, JDBC, Eclipse, Log4j, Maven, Jenkins, JUnit, Git, Web Services- WSDL, SOAP, REST, XML, JSON, SVN, SFTP, Ervin, Soap UI, Oracle 11g, REST Client, Linux, Apache Tomcat.

Confidential, Louisville, KY

Sr. Java/J2EE Developer

Responsibilities:

• Migrating existing application into REST based Microservices to provide all the CRUD capabilities using Spring Boot.
• Used Spring Core Annotations for Dependency Injection and Spring Boot for microservices.
• Used java beans, model objects to transfer a package of information among view layer, businessservice layer, data layer and EJBs to execute business logic separately.
• ImplementedJSFframework extensively which involves building the whole user Interface components usingJSFtab panels, Panel groups and data tables. Integrated components like partial triggers, calendar, and action/value change listeners withJSFfor enhancing the front-end GUI layout.
• Designed UI pages using JSF v2.2, Prime faces v5.1, HTML5, Java Script, CSS, AJAX, JQUERY, AngularJS, JSP, JSON and Tag libraries.
• Wrote queries for the modifications to existing database structure.
• Refectories, re-architected, and enhanced an existing AngularJS application to follow strict MVVM/MVC patterns for improved source code maintenance.
• Developed an AngularJS workflow manager leveraging Angular-UI's state router for flexible configuration and management of multi-step user input flows.
• Performed User Interface Design and coding using Java & J2EE, Spring framework and web technologies.
• Used multithreading in programming to improve overall performance.
• Implemented JSF with Managed Beans, Topics, andConnection Factories in some portions of project (Model View Controller) to handle/intercept the user requests and used various controllers to delegate the request flow to the Backend tier of the application.
• Implanted a continuous Delivery pipeline with Docker, Jenkins and GitHub. Whenever a new GitHub branch gets started, Jenkins our continuous Integration server, automatically attempts to build a new Dockercontainer from it.
• Configured Dockercontainer for branching purposes
• Developed the front-end using Flash and JSP.
• Developed EJB classes in the persistence layer for transaction management.
• Performed Unit testing using JUNIT, System, Regression, and Integration Testing.
• Developed the application using agile methodology and followed TDD.
• Clear Case is used for version control systems and source code management.
• Involved in various internal releases of the application and supported the application modules during testing and pre-production phases.
• IBM Doors Product is used to keep the track of the SRS and updating the changes according to the BRD.
• Used Ant for building and deploying the war file into application server
• Involved in migration of Ant to Maven, ClearCase to Git.
• Worked on to create Responsive Web Design with Bootstrap framework.
• Developed single page applications (SPA’s) using Angular JS.
• Extensively worked with Angular JS framework for UI development and developed html components for usage in common modules.
• Implemented multiple high-performance MongoDB replica set.
• Worked with front-end build environment of Grunt, Node JS.
• Built custom UI Widgets and Application logic using Angular JS MVC architecture
• Implemented prototyping of user interfaces relating to JavaScript programs.
• Worked with Eclipse as the IDE to develop, test and deploy the application.
• Created an UML diagram that includes Sequence Diagrams, Class Diagrams & use case diagrams as part of the application design using Micro Soft Visio tool.
• Installation, Configuration and Administration of IBM WebSphere Application Server 7.0, 6.1, 6.0, 5.1 versions on Windows Environments.
• Used WSDL, SOAP, JAX-WS, JAX-RS, CXF technologies to create web services, generate stubs and consuming the existing services.
• Used log4j for logging purpose.
• Used CXF API to generate Restful web services.
• Tested SOAP web services using SOAP UI and REST web services using REST Client.
• Used Apache Ant v1.5 as build tool for the project.
• Used TOAD for internal data storage and retrieval.
• Monitored database performance and developed new AWS solutions.
• Involved in setting up Connection pooling and used JMS for Asynchronous messaging.
• Involved in peer & lead level design and code reviews.
• Involved in building the code & deploying on WebLogic application server.
• QA, UAT & SIT Production issues investigation and supporting business users.

Environment: JDK 1.8, Spring Boot 1.4.1, Spring Hystrix(Spring Cloud), JSF, Prime Faces 5.1, AJAX, Spring, Angular JS, AWS, Docker, Bootstrap, MongoDB, Hibernate, HTML5, Web Logic App server, JMS, JDBC, Eclipse, Log4j, Maven, Jenkins, JUnit, Git, Oracle, Web Services- WSDL, SOAP, REST, XML, JSON, SVN, SFTP, Ervin, Soap UI, REST Client, Flash, Tomcat, MS Visio, Rapid SQL 8.1.

Confidential, Denver, Colorado

Sr. Java/J2EE Developer

Responsibilities:

• Responsible for system analysis, design and development using J2EE architecture.
• End to End Project management, including customization of product based on customer’s requirement, meeting delivery deadlines on development, testing, implementation phases of the system.
• Used Spring Framework to develop lightweight business components.
• Used Spring IOC for dependency injection and Spring AOP for cross cutting concerns like logging, security and transaction management.
• Designed, developed, and maintained the data layer using Hibernate and used Spring ORM to integrate with Hibernate.
• Used XML for the data exchange and used SAX and DOM parser to extract and read the required information from the XML.
• Writing Docker files with best practices along with dockerlinting,Dockercontainer management along with volumes, container-based DB and services,DockerArtifactory (Jfrog) configuration and setup.
• Responsible for designing and developing new back-end services, maintaining and expanding AWS infrastructure, and providing to others on my team.
• Implemented the persistence layer using Hibernate ORM and Developed Web Services using REST, WSDL and XML.
• Designed and developed the front-end using Flash and HTML.
• Developed the helper classes for better data exchange between the MVC layers.
• Developed session beans for the business logic.
• Designed and developed NoSQL solutions for all users.
• Currently working onDockercontainer implementation for the Enterprise build system.
• Implemented client-based pages using Web Services and MongoDB.
• Used Log4j to capture the log that includes runtime exception and for logging info and are helpful in debugging the issues.
• Developed the Hibernate mapping files and involved in writing JUnit test cases and suits using Eclipse IDE.
• Configured and deployed the application in WebLogic Application Server.

Environment: J2EE, Eclipse 4.2, JSP 2.1, Spring 4.0, Hibernate 4.1.9, Docker, MongoDB, Servlets 3.1, Oracle11g, Rational Rose, Rational Clear case, JMS 1.1, JavaScript 1.8.5, AWS, ANT 1.7, Log4j, JUnit 4.0, Flash, REST, Tomcat, WSDL, XML 1.1, WebLogic Sever 11g.

Confidential

Java/J2EE Developer

Responsibilities:

• Involved in the design and implementation of well-integrated products.
• Involved in the modifications of the presentation layer using JSPs and CSS as the UI to place an order.
• Implemented Struts Model View Controller architecture to develop presentation tier and business layer.
• Developed and execute unit tests and test suites for product components using JUnit Testing.
• Responsible for client-side UI Validation and implementing Business logic based on user selection using JQuery, UI and AngularJS.
• Used Ant Build tool to deploy the application in web sphere. Ant scripts used for automating build process.
• Implemented the project with agile methodologies.
• Used DOM and SAX parser for accessing objects in JavaScript.
• Developed Struts Actions that grabs data from the forms, does validation and calls services and data access objects DAO’s.
• Modified the Business Delegate and connector classes
• Used web service calls for exchanging data with the other gaming applications.
• Hibernate is used to maintain the persistence records in the Database as a persistence layer based on ORM
• Developed DAO’s Interfaces and their implementation for accessing the POJO’s and updating the database.
• Developed and modified the stored procedures, the DAO (Data Access Objects) and VO (value Object) classes for separating the Data Access logic and business logic
• Spring Framework is used to provide IOC and Dependency Injection features which provides a sophisticated implementation of the factory pattern.
• Managed and administered all NoSQL database systems.
• JBoss application servers running in some parts of the system enabled the use of EJB 3.0 in those parts and dependency injection supported by EJB 3.0 allowed spring bean factories to be injected in the EJBs and Used version control systems like SVN, CVS check-in, check out.

Environment: Java, J2EE, AngularJS, JDK, Struts 2.3, Spring 3.2.5, Hibernate 3.5.0, SOA, SOAP 1.2, SVN, CVS, Web services, Tomcat, WebSphere 7, Ant 1.7, HTML4, CSS 2.0, JSP 2.1, RAD 7.5, Oracle 10g.

Confidential

Java/J2EE Developer

Responsibilities:

• Involved in the Development and Analysis of this Enquiry module.
• Prepared and documented Use Case Specification, Use Case Diagrams, Class Diagrams, and Collaboration Diagrams UML.
• Along with the documentation, also worked on Asynchronous / Synchronous communication patterns.
• Worked on different tools such as Component, SOA Composite and OBER.
• Developed Oracle SOA services in an agile development environment, Considering the SOA Governance & Best Practices - for managing business assets such as WSDL, XSD’s and Process.
• Worked on SOA Design Patterns for building middleware systems.
• Worked on a multi-tier web-based environment using J2EE technologies: JSP, EJB and Java Servlets.
• Developed components using Session Beans.
• Developed JSP and Servlets
• Developed the business logic using EJB
• Developed the Internationalization to the Application
• Validating the views using Validator plug-in in Struts Frame Work
• Designed and coded JSP for presentation layer.
• Performed routine checks on the Linux servers of the firm.
• Manage and deliver all system and software migrations like Java version upgrade, OS migration from UNIX to Linux involving organizational standard.
• Developed Java Beans for business logic required by the JSP’s.
• Developed Webpages using XML.
• Used JDBC Thin Driver extensively for invoking complex query on database.
• Developed Test Plans using JUnit.
• Responsible for Deploying, Implementing the application at Client site using Ant build tool
• Wrote reusable functions for xml transformation in Java Server Pages.
• Designed the solutions for top existing components and within the constraints particularly specified by the project.
• Development and Analysis of the Client Data Bank module of the Life Insurance product.
• Done the complete requirement/system specifications and test specifications.

Environment: JDK1.4, JDBC 3.0, HTML 4.0, EJB’s, Servlets 2.0, JSP’s, XML 1.0, JUnit 3.4, Struts 1.1, Ant 1.6, JavaBeans, Oracle Service Bus, Oracle 9i, Oracle SOA Suite 11g,HP-Unix, Linux, Win98/ 2000, WebLogic 8.0, Eclipse 3.3.