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Java Web Services

Location:
Orlando, FL
Posted:
March 19, 2018

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Resume:

Vaishnavi

203-***-****

ac4uzb@r.postjobfree.com

OBJECTIVE

Around 8 years of strong software experience in different phases of the project like gathering Requirements Analysis, Design, Development, Testing and Deployment of web-based and client-server business applications using OOP, Java/J2EE technologies in domains like Airlines, Banking, Telecom etc. Achieving new heights of success and leaving a mark of excellence in assignments which involves analytical capabilities and professional growth. Effective problem solving skills, outstanding interpersonal skills, good in written and verbal communication. Ability to work independently as well as within a team environment. Driven to meet deadlines. Motivated to produce robust, high-performance software.

PROFESSIONAL EXPERIENCE

Experienced working with different Software methodologies like Agile Scrum, Test Driven Development (TDD) and Waterfall model.

Expertise in creating the pages using HTML5,CSS3, WebPages, layouts and vast knowledge in usability and accessibility concepts.

Expertise in client scripting language and server scripting languages like JavaScript, JQuery, AJAX, JSON, Bootstrap, AngularJS, ReactJS, Backbone.js and Node JS.

Utilized Java 1.8 features like Lambda expressions and Stream API for Bulk data operations, Parallel operations on Collections which would increase the performance of the Application.

Managed Amazon Web Services like EC2, S3 bucket, ELB, Auto-Scaling, SNS, SQS, AMI, IAM, Dynamo DB, Elastic Search, Virtual Private Cloud (VPC) through AWS Console and API Integration.

Excellent in deploying the applications in AWS as EC2 instances and created snapshots for the data that had to be stored in AWS S3.

Created and Configure Micro Service architecture for CDT Directory project and integrated with AngularJS application.

Create and configured the continuous delivery pipelines for deploying Micro Services and Lambda functions using CI server.

Expertise working with different spring modules likeSpring IOC (Dependency Injection), Spring MVC, Spring AOP, Spring web flow, Spring Cloud, Spring Data (JDBC, ORM), Spring XD, Spring Boot and Spring Batch.

Developed web-based applications using Java, J2EE, Servlets, JDBC, Java Persistence API 2, Spring, Struts(Struts Tag Libraries and Struts custom validation rules, Tiles), EJB, Web Services (SOAP and REST), MVC framework (Struts, Spring MVC, JSF), SQL and ORM frameworks like Hibernate, IBatis, MyBatis.

Experienced in implementing Service Oriented Architecture (SOA) with XML based Web Services (SOAP/UDDI/WSDL), AXIS, JAX-WS using Top-Down Approach and Bottom up Approach.

Expertise in developing REST APIs with Resource based URIs and HATEOAS techniques using Jersey and RestEasy implementations of JAX-RS and JAX-B.

Creation of custom components, client libraries, OSGI services, deployments frameworks, querying and connecting to DB using OSGI bundles.

Expertise in XML technologies such as XSL, XSLT, XML schemas, XPath, XForms, XSL-FO and parsers like SAX, DOM.

Experienced in implementation of JMS to exchange information over reliable channel in an asynchronous way by using Active MQ, Rabbit MQ, Kafka as message queue.

Strong knowledge in cross browser compatibility issues and W3C standards maintain the website with defect free. Good Knowledge in using Dojo Components and integrating back-end applications with AJAX driven web front-end using OO JavaScript framework.

Designed and implemented the system leveraging XML and XSLT for defining the rules and a UI to help generate the XML.

Expert in Core Java and implementing concepts like Multi-Threading, Concurrence, Exception Handling, File handling, IO, Generics and Java collections in various projects.

Good Knowledge of Data Access Object (DAO) pattern to introduce an abstraction layer between the Business logic tier (Business object) and the Persistent storage tier (data source).

Experience with J2EE design patterns such as Singleton, Prototype, Business Delegate, Session, Facade, Front Controller and Data Access Object(DAO) pattern. Strong Experience in database design using PL/SQL to write Stored Procedures, Functions, Triggers.

Strong experience in writing complex queries, using Oracle, IBM DB2, MySQL andPostgre-SQL. And hands on experience in working with the NoSQL Database like MongoDB, Cassandra, Dynamo DB, Cassandra to manage extremely large data sets.

Hands on experience in working with JUnit, Mockito, Selenium, Groovy Spock and TestNG.

Proficient on Automation tools like Selenium WebDriver and Selenium GRID using Java for developing automation scripts in Eclipse IDE with TestNG, Maven and Jenkins for testing Web Based Applications.

Designed and developed online marketplace framework with React, Redux, Node, MongoDB.

Experience in implementation of business applications using BEA WebLogic 10.0, IBM WebSphere8, Portal Server (WAS/WPS), Apache Tomcat 8 and JBoss 7.1.0.

Hands-on experience working with version control tools such as Tortoise Subversion (SVN), CVS, Git and Visual Source Safe.

Implemented a Continuous Delivery pipeline with Docker, Jenkins and GitHub and AWS AMI’s.

Experience on different IDEs such as Eclipse, RAD, Spring Tool Suite, and Intellij.

Have extensive experience working on Windows, Linux and UNIX Operating Systems.

Having experience in JIRA and Firebug to keep track of bugs and to manage the project.

TECHNICAL SKILLS

Languages

C, Java 1.8, SQL, PL/SQL

Enterprise Java

JSP, Servlets, JNDI, JDBC, Log4J, Java security

XML Technologies

XML, XSD, XSL, XSLT, SAX, DOM, JSON,DTD,Xpath,SOAP.

Web Technologies

HTML5, JavaScript, CSS3, Bootstrap, SOAP, REST, Bootstrap, JQuery, AJAX, AngularJS, ReactJS and NodeJS, ExpressJS.

Tools & Framework

Struts, Spring, Hibernate, Spring MVC, Spring Web Flow, Spring HATEOAS, Spring IOC, Spring AOP, Spring Security, Spring Data, Spring Boot, JSF, JUnit, SOAP UI, IBatis, Google Web Toolkit, Jersey, Groovy.

Web services

SOAP, RESTful, UDDI, WSDL, JAX-RS, JAX-RPC, JAX-WS, JAX-B, Micro Services, Apache Axis2, Apache CFX, AWS (Amazon Web services)

Cloud Technologies

Amazon Web Services (EC2, SQS, RDS, IAM, S3), and Spring Cloud.

Web/App Servers

Web Sphere, Apache Tomcat, JBOSS EAP, Web Logic Server and Apache Camel

Database

Oracle, SQL-Server, My SQL server, Mongo DB/ NOSQL, DB2

Modeling/ CASE Tools

Rational Rose, MS Visio Professional

Testing Tools/ Others

JUnit, Mockito, Selenium, SoapUI, TOAD, Rational Clear Quest.

Version Control Tools

CVS, Tortoise SVN, Rational Clearcase.

Build-Automation Tools (CI)/Issue Tracking Tools

Maven, Gradle, Jenkins, ANT, JIRA, FireBug.

IDE Tools

Eclipse, IBM RAD, STS, IntelliJ

OS & Environment

Windows, Mac, UNIX, Linux

PROFESSIONAL EXPERIENCE

Client: Delta Airlines Jan’17 – Till date Location: Atlanta, GA

Role: Full Stack Developer

Description: Delta Air Lines is a major American airline. Delta is the sixth-oldest operating airline by foundation date, and the oldest airline still operating in the United States. This project is intended to replicate the online airline self-service reservation capabilities, where you can select from multiple air travel service providers, dates, times, and select your seat assignment.

Responsibilities:

Involved in the complete SDLC (software development life cycle) of the application from requirement analysis to testing.

Followed Agile Methodology in analyze, define, and document the application, which will support functional and business requirements. Coordinate these efforts with Functional Architects.

Developed the UI using HTML5, CSS3, JSP and JavaScript for inter JMS cross browser functionality and complex user interface.

Used Node JS to run Angular JS on server with mock JSON data and completed the UI development independent of server.

Used Streams and Lambda expressions available as part of Java 1.8 to store and process the data.

Designed, Configured and deployed Amazon Web Services (AWS) for a multitude of applications utilizing the Amazon cloud formation.

Experienced in setting up Amazon EC2 instances, virtual private cloud (VPCs), and security groups. Setting up databases in AWS using RDS, storage using S3 bucket and configuring instance backups to S3 bucket.

Java Persistence API 2 supports allowing custom code conversions between database and object types.

Experience with designing and configuring secure Virtual Private Cloud (VPC) through private and public networks in AWS and create various subnets, routing table, internet gateways for servers.

Designed and developed Micro Services business components using Spring Boot.

Designed and developed the REST based Micro Services using the Spring Boot.

Used Spring MVC module to develop MVC Architecture.

Developed the Controller to handle the requests and responses.

Used Core Java to develop Business Logic as Spring Beans.

Configured Spring Container to implement IOC/DI of the Spring Beans, and to manage the beans life circle.

Secured the API's by implementing OAuth 2.0 token based authentication/authorization scheme using Spring Security.

Designed and developed third-party Payment services to Offer Users Convenient Payment Methods based on OAuth Protocol.

Implemented Spring AOP for declarative transaction management.

Created Docker images and ran the Docker containers in various environments.

Developed POJO objects and used Hibernate as the Object-Relational Mapping (ORM) tool to access the persistent data from SQL Server.

Used RabbitMQ message broker to route messages to the clients across the cloud network.

Stored procedure in the database and used Dynamic SQL to load the data.

Used Jersey to implement Restful Web Service and used XML form to transfer the data.

Used Rest Controllers to replace the existing operations layer, which acts as bridge between business layer and the UI.

Used MongoDB as data storage and utilized aspects like replica sets, sharing and clever document design to make service extensible scale and feature wise.

Responsible for Production support activities like Jobs monitoring, log the load statistics, analysis and resolve in case of any production issues, coordinate with business to fix any source file issues, coordinate with DBA to resolve any table space or file system related issues.

Deployed the Web Application in WebSphere.

Developed processing rules which involved XSLT transformation and routing messages for message formats like XML, SOAP, JSON.

Developed Unit Test Cases. Used JUnit for unit testing of the application.

Created UNIX shell scripting for periodic generation of reports.

Configured pom.xml to deploy the project using Maven.

Used Brackets IDE for UI development and RAD IDE for Server.

Provided Technical support for production environments resolving the issues, analyzing the defects, providing and implementing the solution defects.

Environment: Java 1.8,J2EE, HTML5, CSS3, JavaScript, JQuery, AJAX, AngularJS, NodeJS, Bootstrap, JSON, JSP, JNDI, Java Persistence API, Oracle, Spring AOP, Rabbit MQ, Hibernate, PHP, Spring MVC, Spring JDBC, JDBC, Amazon Web-Services(Elastic Search),SOA (Service-oriented) Architecture, Docker, REST, JAX-RS, Jersey, JUnit, JAX-B, Mongo DB, WebSphere, JIRA, Maven, GIT, RAD, Jenkins, Unix, Agile Methodology.

Client: Wells Fargo Jun’15 –Nov’16

Location: Minneapolis, MN

Role: Full Stack Developer

Description: Wells Fargo is an American international banking and financial services holding company with hub quarters throughout the country. Wells Fargo is one of the world's largest banks by market capitalization. The Community Banking segment includes Regional Banking, Diversified Products, and the Consumer Deposits groups, as well as Wells Fargo Customer Connection. To arrive at a unified set of applications that will be offered to all the customers of bank. Migration of application data from source into existing target is one of the core activities in this initiative.

Responsibilities:

Involved in SDLC requirements gathering, analysis, design, development and testing of application developed using Agile methodology.

Created user-friendly GUI interface and Web pages using HTML5, CSS3, Java Script, JQuery, Angular JS and NodeJS.

Implemented the UI using Bootstrap.

Defined new validations through AngularJS for the form field validation implemented through HTML5.

Used Spring MVC, Ajax and Dependency Injection for handling presentation and business logic.

To maintain loose coupling between layers published the business layer as services and injected the necessary dependent components using Spring IOC and published cross cutting concerns like Logging, User Interface exceptions, Transactions using Spring AOP.

Integrated Spring DAO for data access using Hibernate.

Used Spring Security for Authentication and Authorization of the application.

Implemented persistence framework using Hibernate& Handled Transaction Management using the provided data source.

Responsible for designing Hibernate mapping files based on business logic and Object relationships.

Created data model and generated Hibernate mappings and domain objects using Hibernate tools.

Integrated Spring and Hibernate together and worked on developing backend components and services using Hibernate and spring.

Extensively used HQL and SQL for querying databases.

Consumed Web Services to interact with other external interfaces to exchange the data in the form of XML and by using SOAP.

Followed SpringBoot and Spring framework for the development of the project.

Used Rest methodology for the service layer interface and used JSON for the data transformation.

Developed various AJAX and JSON calls for the communication between the server and the UI.

Developed Web Services for produce and consumed the services by making Web Service.

Used Spring JMS module for lookup for the queues and MDBs for the listeners

Established Database Connectivity using JDBC, Hibernate O/R mapping with Spring ORM for MySQL Server.

Create and modify reporting templates on the fly using Jasper API.

Used JavaScript and Struts 2 validation framework for performing front end validations.

Involved in creating the Hibernate POJO Objects and utilizing Hibernate Annotations.

Developed the Mapping Resource Files for the database entities.

Designed and developed application's GUI screens using GWT framework.

Written LINUX shell scripts to identify user login information.

Playback and technical presentations to the clients on acquired knowledge.

Generating reports in PDF using iText Open source and excel file formats.

Used log4J for application logging and notification tracing mechanisms.

Analysis and Bug fixing of the production problems and defects along with enhancements

Used J-Unit Testing and Ant Scripts.

Used JIRA for tracking the Project Stories in AGILE Methodology.

Environment: Java, JDK, J2EE, HTML5, CSS3, Bootstrap, JQuery, AngularJS, NodeJS,XML, JSON, Ajax, Struts2, Hibernate, Spring, SOAP, MVC design patterns, WebSphere Server, MySQL Server, JMS, JNDI, Ant, RMI, Intellij, JIRA, React JS, Tortoise SVN, Maven, LINUX.

Client: T- Mobile May’14 – Apr’15

Location: Seattle, WA

Role: JAVA/J2EE Developer

Description: T-Mobile is one of the largest wireless network carrier in United States. The project I worked was a web based application which is used for maintaining the confidentiality of the business client's documents and deals with the requests made by the customers. The project is mainly about the anti-theft system of the mobile phone and unlocking the applications for the customers. The main aim of this project is to make sure the applications are secure in the mobile.

Responsibilities:

Involved in client requirement gathering, analysis & application design of Extreme Programming using Agile methodology with iterative and incremental software development.

Worked with Onshore team members and participated in work planning team bandwidth and prepared work breakdown Developed service oriented middleware to incorporate two legacy source systems and published them as web-services. Incorporated source system specific business logic in Java code and exposing them as Web Service as per Base profile specifications and WSDL contract.

Involved in the development of the User Interfaces using AngularJS, HTML, JSP, JS, CSS and AJAX.

Used Dependency Injection feature of Spring framework to inject dependency into objects and to wire objects of business classes.

Used Spring framework including Spring core /IOC, Spring Web, Spring Security.

Developed persistence layer Data access objects using DAO pattern, JDBC, Hibernate

Developed costume queries using Hibernate criteria, native SQL and HQL. Developed inheritance domain objects using table per class hierarchy strategy.

Configured EH Cache to load the static tables into secondary storage area.

Implemented SOA architecture with Web Services using SOAP, WSDL, UDDI and XML using CXF framework tool/Apache Commons.

Developed Stateless session beans to parse (parser frame work) and process the user request into domain object (DAO design pattern) to delegate the business request to the business delegate object

Used SOAP web services and XML data over HTTP.

Developed necessary parsing and XML construction logic using XML parser APIs JAXB.

Developed user interface using JSP, Struts published validation framework to support client side and server side validation.

Used built in store Procedures to reach the requirements from the Client to improve the response times of the services.

Created tables, triggers, stored procedures, SQL queries, joins, integrity constraints and views for multiple databases, Oracle 10g using TOAD tool.

Developed an automated application using JMS for messaging and JNDI to interact with the Server.

Used Rally which is Project Management Software that keeps track of all activities of the project development status.

Used Hibernate as ORM tool to store the persistence data into the Oracle database.

Created Stored Procedures using PL/SQL.

Developed Scripts for the build process and deployed in Web Logic Server.

Developed customized SQL for retrieving the data from the database worked with business and client to reach the performance parameters.

Used Jenkins as build management tool for continuous integration process.

Implemented Log4J for logging errors, tracking using logger’s components.

Developed unit test cases to test business scenarios associated with each use case sequences.

Used GIT for version control tool.

Experienced in writing unit test cases using JUNIT.

Worked on UNIX environment for development.

Actively participated in production support.

Environment: Java, JEE, JSP, HTML,CSS, JavaScript, AngularJS, Spring (dependency injection, AOP), Spring Web, Struts, Hibernate, JMS, Clear case, Web Logic Server, Web- services, SOAP, WSDL, JNDI, UDDI, JAX-RPC, JAXB,Log4j, Oracle, Rally, JUnit, Jenkins, GIT, TOAD,UNIX.

Client: BCBS July’11 – Dec’13

Location: Chattanooga, TN

Role: JAVA/ J2EE Developer

Description: BCBS -a health insurance company that improves the customer's well-being, productivity and health by providing them with benefits, service and expertise. In this project we develop a real-time, fully automated claims processing system for online mediation of disability, medical, vision and dental claims. The timely and efficient management of all the data related to clinical, administrative and finances throughout the organization is done by the application which in turn enables the information sharing between subsystems.

Responsibilities:

Involved in all phases of the Software development life cycle (SDLC) using Agile Methodology.

Developed Use Case Diagrams, Object Diagrams and Class Diagrams in UML using Rational Rose.

Used AJAXAPI for intensive user operations and client-side validations.

Involved in the development of the User Interfaces using HTML, JSP, JS, Dojo Tool Kit, CSS and AJAX.

Developed user interface using JSP, JSP Tag libraries, third party libraries and Java Script to simplify the complexities of the application.

Inserted Dependency Injection between components using Spring (IOC) concept.

Implemented Asynchronous messaging between components using JMS

Used Multithreading (Concurrent) in programming to improve overall performance using Singleton design pattern in Hibernate Utility class.

Involved in writing Spring Configuration XML file that contains declarations and other dependent objects declaration.

Used Spring Security to provide authentication, authorization and access-control features for this application.

Responsible for designing, coding and developed the application in J2EE using Struts MVC

Implemented SOA architecture with Web Services using SOAP, WSDL, UDDI and XML using Apache CXF framework tool/Apache Commons. Worked on parsing the XML files using DOM/SAX parsers.

Designed and developed Hibernate DAO’s using Spring Framework’s Hibernate DAO Support and Hibernate Template.

Involved in creating various Data Access Objects (DAO) for addition, modification and deletion of records using various specification files.

Used MQ series of messaging and queuing purpose in the application

Created tables, triggers, stored procedures, SQL Queries, joins, integrity constraints and views for multiple databases, Oracle using Toad tool.

Wrote client side validations for DOJO and XML files which checks for the valid values for the different events that are being logged.

Involved in developing the Graphical User Interface using HTML, JavaScript, CSS and JSP.

Developed User friendly interface to seamlessly combine the new module with existing login system using AngularJS.

Developed Java server Pages using JSP Tags, Spring–tags, minimal Scriplets, HTML for client side validation and errors to ease troubleshooting.

Involved in Unit Testing of various modules by generating the Test Cases.

Performed configurations and day to day activities using JBOSS.

Involved in day to day handling of JIRA issues (production issues at time) that involved data inconsistencies that required to be solved in very less time.

Involved in Bug fixing of various modules that were raised by the testing teams in the application during the Integration testing phase.

Implemented PL/SQL procedures and views in Oracle Database using Altova Database Spy.

Implemented Log4J for Logging Errors, debugging and tracking using logger’s components.

Performed deployment of applications on JBoss Application Server.

Worked on UNIX environment for development.

Used GIT Version controller.

Environment: Java, J2EE, XMI, Hibernate, Spring, Spring Boot, Oracle, Struts MVC, JMS, MQ Series, JavaScript, HTML, XHTML, XMI, IDAM, CSS, Bootstrap, SQL, PL/SQL, Log4j, JQuery, Angular JS, JBoss Application Server, Spring Security, JIRA, GIT, UNIX.

Client: Mega Soft Ltd Aug’10 – July’11

Location: Hyderabad, India

Role: JAVA Developer

Description: The main object of this project is to provide a frame work for evaluating the entire life cycle cost for a product, including warranty claims. The project aim is to provide warranty analysis by evaluating warranty claims data to spot trends and incorporate feedback into the next product version.

Responsibilities:

Developed the application using Struts Framework that leverages classical Model View Controller (MVC) architecture.

Developed UI pages using HTML, Java script, JSP& Tag libraries

Designed the user interfaces using JSPs, developed custom tags, and used JSTL Taglib.

Developed various java business classes for handling different functions.

Developed controller classes using Struts and tiles API

Involved in Documentation and Use case design using UML modeling include development of Class diagrams, Sequence diagrams, and Use Case Transaction diagrams.

Implemented Business processes such as user authentication, Transfer of Service using Session EJBs

Backend application layer is implemented using EJB in JBoss environment

Developed PL/SQL queries, Triggers and Stored Procedures to check the integrity of the data and actively involved in tuning SQL queries

Used AJAX for dynamically updating the content

Participated in design and code reviews

Developed JUnit test cases for all the developed modules. Used SVN as version control

Environment: Java, J2EE, JSP, Struts, JNDI, HTML, CSS, EJB, Web Sphere Application Server, Hibernate, XML, DOM, SAX, ANT, AJAX, Rational Rose, Eclipse Indigo, Apache Tomcat, Oracle, LOG4J, SVN.

Client: Singularity Software India Private Ltd May’09 – Aug’10

Location: Hyderabad, India

Role: JAVA Programmer

Description: The objective of this project is to implement a web based front end system which can be used by the employees, managers and higher level management having specific role permissions for effective processing of day to day business activities in the company like leave management, project management and resource management etc.

Responsibilities:

Technical responsibilities included high level architecture and rapid development

Design architecture following J2EE MVC framework

Developed interfaces using HTML, JSP pages and Struts -Presentation View

Developed and implemented Servlets running under JBoss

Designed the user interfaces using JSPs, developed custom tags, and used JSTL Taglib

Developed various java business classes for handling different functions

Developed controller classes using Struts and tiles API

Used J2EE design patterns and Data Access Object (DAO) for the business tier and integration Tier layer of the project

Designed and developed Message driven beans that consumed the messages from the Java message queue

Implemented CMP entity beans for persistence of business logic implementation

Development of database interaction code to JDBC API making extensive use of SQL Query Statements and advanced prepared statement

Inspection/Review of quality deliverables such as Design Documents

Wrote SQL Scripts, Stored procedures and SQL Loader to load reference data

Environment: Java, J2EE (Java Servlets, JSP, Struts), MVC Framework, Apache Tomcat, JBoss, Oracle, SQL,HTML, JDBC, EJB.



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