SUMMARY:

• Over 9+ years of professional experience in designing and building web applications using Java/ J2EE .
• Experience in all phases of Software Development Life Cycle ( SDLC ) - Analysis, Design, Implementation, Integration, QA methodologies, Test Strategy. Test metrics and maintenance of applications.
• Strong experience in software development methodologies like Waterfall , Agile, TDD, Scrum, and RAD .
• Participated in Scrum, Sprint review, Retrospection, and Virtual Closure meetings as part of Agile.
• Deep understanding of MVC model-view-control, Client-Server and N-tier Architectures .
• Well versed skill in design, development, and deployment of applications for the J2EE platform using Servlets, Struts, Spring, EJB, JSP, SOA, SOAP, REST, Microservices, ORM, JPA, JMS, JAXP, JAXB, JUnit.
• Hands on experience in Front-End technologies like AngularJS, ReactJS, NodeJS, JavaScript, HTML5, CSS3, Bootstrap, jQuery, Tag Libraries, AJAX used for Responsive web page designing.
• Experience in XML technologies like XML, DTD, XSL, XSLT, XPATH, JAXB, SAX and DOM Parsers.
• Worked with Spring Features like Spring MVC, Spring DAO, Spring Boot, Spring Batch, Spring Heroku.
• Experience in Spring Security, Spring Integration, Spring Zulu, Eureka, Netflix, Hystrix.
• Expertise in developing SOAP, Rest Web Services based on SOAP, WSDL, JAX-WS, JAXB, JAX-RPC, JAX-R S.
• Hands-on experience in developing several Microservices using spring boot, jersey, swagger to communicate through HTTP protocol for implementing SOA approach and web services.
• Proficient in implementation of frameworks like Struts, Spring, Spring Boot, JSF, AJAX and Hibernate ORM .
• Used Hibernate as an ORM mapping tool like JPA Entities for mapping Java classes using HQL .
• Experience in working with messaging systems like Kafka, Event Sourcing, RabbitMQ, and Active MQ.
• Experience in creating rules using Business Rules Engines: Drools, ILOG .
• Experience with Docker , leveraging Linux Containers and AMI's to create Docker Images/ containers .
• Hands-on Experience in Utilized Kubernetes for the run time environment of the CI/CD system to build, test and deploy in an open-source platform and Splunk data flow, components, features and product capability.
• Extensive experience in Amazon Web Services like RDS, IAM, EC2, Redshift, SQS, SNS, Cloud Watch and S3 .
• Experience in working with PCF to deliver applications continuously to every cloud with a single platform.
• Extensive Experience in retrieving and manipulating data from backend using Database SQL queries, PL/SQL - Stored Procedures, Functions, Sequences, Triggers, Views and Packages.
• Hands-on Experience with relational databases Oracle, SQL Server, DB2, My SQL as well as NoSQL databases like MongoDB, Mark Logic, Cassandra, DynamoDB.
• Highly proficient in designing n-tier Enterprise application with J2EE design patterns like IOC, AOP, MVC, Business Delegate, Service Locator, Session Facade, DTO, DAO, Front Controller, Factory and Singleton.
• Hands-on experience in writing ANT , Maven build scripts , providing logging facility using Log4j .
• Worked with Version Control Systems like CVS, SVN (Subversion), GIT, GitHub, Clear case.
• Experience with Tomcat, WebLogic Server, JBoss, and IBM WebSphere .
• Experience in using Design Tools like Rational Rose Enterprise Tool, visual paradigm, MS Visio .
• Good exposure on using IDE'S like Eclipse, Sublime Text, IntelliJ and Net Beans.
• Expertise in Selenium automation using Selenium WebDriver, Selenium Grid, Junit and Maven.
• Solid experience of Defect/Test Management tools like JIRA, Quality Centre/Test Director, Bugzilla .

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, 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

IDEs: Eclipse 3.x, Spring Tool suite 2.x/3.x, IntelliJ

Web technologies: HTML5/HTML5, CSS/CSS3, XHTML5, JavaScript, Ajax, jQuery, AngularJS, Bootstrap, ReactJS, NodeJS, JSON

Web Services: JAX-WS, JAX-RPC, JAX-RS, SOAP, REST, SOAP UI

Methodologies: Agile, Scrum, SDLC

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

Version Control: CVS, SVN, Git, Rational ClearCase.

Build Tools: ANT, Maven, Gradle

PROFESSIONAL EXPERIENCE:

Confidential, Bothell, WA

Java Full Stack Developer

Responsibilities:

• Involved in Full Cycle of Software Development from Analysis through Design, Development, Integration and testing phases by following Agile Software Development with Scrum methodology.
• Effectively used Java 8 concepts like Lambda Expressions, Collections and Stream API.
• Implemented unique design patterns such as singleton, business factory and J2EE design patterns.
• Developed User Interface application modules using HTML, CSS, and JavaScript, JSON, jQuery, and AJAX.
• Well Versed of Domain-Driven Approach in Developing the Enterprise level applications.
• Implemented MVC pattern using Spring MVC and integrated with Hibernate ORM.
• Designing and implementing scalable, RESTful and Micro-services-based services for mobile back-end. The back-end written in Java using Spring Boot for simplicity and scalability.
• Developed Microservices with Spring to retrieve API routes for the entire cluster. Using this strategy each Microservice in a cluster can be load balanced and exposed through one API gateway.
• Developed Entity objects and used Hibernate the ORM tool to access persistent data.
• Used Layer7 to provide security for business services. Followed Role-Based Authentication using OAuth2.0.
• Experience using persistence framework like Hibernate, JPA for mapping java classes with Database.
• Developed REST web services as part of a project to achieve Continuous Delivery goal on the highly scalable environment, used Docker coupled with load-balancing tool Nginx.
• Hibernate and Messaging Middleware using JMS and MQ.
• Fully competent in Object-Oriented Programming concepts such as Polymorphism, Inheritance, Encapsulation, Abstraction, Interface and Multi-Threading
• Expertise in client-side design and validations using HTML5, XHTML, CSS3, JavaScript, JSP, jQuery, Angular, AJAX, JSON, and JSTL. experience in Implementing Service Oriented Architecture (SOA) using XML based SOAP and RESTful web services.
• Strong programming skills in XML related technologies like XML, XSL, XSLT, parsers like SAX, DOM, JAXP, schemas like DTD, XSD (XML Schema).
• Development experience on different IDE's like Eclipse, JBoss, RAD and NetBeans for debugging and using java coding standards.
• Experience with MQ Series & JMS to communicate between middleware components.
• Hands-on experience in deploying, configuring and administering application servers like Apache, JBOSS, WebLogic, WebSphere, and Apache Tomcat.
• Experience in relational databases like Oracle, MySQL, MS SQL Server using SQL, PL/SQL programming and NoSQL database MongoDB.
• Experience with Version Control Systems like CVS, SVN, GIT, GitHub, Clear case.
• Experience in Amazon Web Services (AWS) Cloud platform with features EC2, IAM, RDS, S3, Route 53, Elastic Beanstalk.
• Building, Securing, Authentication for REST API was done by Spring MVC. Used Spring MVC annotations for Error Handling in REST API.
• Produced and consumed centralized Spring Restful Web Services for Enterprise and web applications to consume in JSON format and in trusted client-server environment.
• Implemented the business modules integration using Spring and Hibernate data mapping.
• Completed unit testing using Junit and Mockito. And utilized POSTMAN Tool to test the REST Services.
• Used Gradle as a Build Process and used generating Documentation, Reporting, and adding Dependencies.
• Create and update the DB2 database scripts. Also used SQL server as an Archival Database.
• Used JMS Queues and Topics to interact with various External Systems as per the Domain.
• Conduct unit testing and maintain the application to ensure strong functionality and optimization
• Well versed in Deployment procedure using JBoss Server and used Jenkins for Continuous Integration.
• Effectively utilized Chrome inbuilt debugger to resolve and test UI Changes.
• Wrote various Buy-in programs, Medicare Savings Programs and Low Income Subsidy Programs using Progress Corticon Business Rule Management System (BRMS).
• Used Rule Engines to provide Drools Dashboard for Client.
• Used Maintainability Index Tool and Sonar Scanner to check the Maintainability of the Developed Code.
• Used FileZilla to monitor Logs in QA and PROD environments and Resolved Deployment and Build Errors.
• Used various development tools like Eclipse, TFS, Visual Studio, Find Bug, SonarQube, Data Studio.

Environment: Java 7/8, JavaScript, Spring MVC, Spring AOP, OAuth2.0, DB2, Hibernate, REST, JSON, Eclipse, Gradle, Angular 6, JUnit, Jenkins, Sonar, TFS, Log4J,SQL Server, Docker, JMS, NGINX.

Confidential, Troy, MI

Java Full Stack Developer

Responsibilities:

• Worked in a highly dynamic AGILE environment and participated in scrum and sprint meetings.
• Implemented various J2EE design patterns like Singleton, Factory, Builder, etc.
• Extensively used Java 8 features such as lambda expressions, Parallel operations on collections, multithreading and for effective sorting mechanisms and Streams to store and process the data.
• Implemented Multithreading concept to handle transaction management with isolation and propagation levels.
• Used HTML5, CSS3, JavaScript, Bootstrap, AngularJS and Node.js as frontend building Environment.
• Configure and run gulp tasks in Node.js runtime and handle injection, CSS pre-processing, test running.
• Developed custom directives, Factories, and Services in AngularJS and implemented code as per coding standards.
• Used Spring DI, Annotations and MVC to implement business and navigation of the application.
• Microservices have been built using Spring boot, Spring security and deployed to AWS cloud.
• Integrated Spring with Hibernate using configurations and implemented DAO layer to save entities into database.
• Develop Single Page Application with Angular, Typescript, HTML5, CSS3, Bootstrap.
• Used Angular directives to specify custom and reusable HTML elements and attribute that define data bindings and the behavior of presentation components.
• Created Typescript reusable components and services to consume REST API's using Component based architecture provided by Angular 2/4.
• Processed JSON data from RESTful web service by using AJAX to get resources from the database and populated the data to the client side.
• Coded extensively in jQuery with Bootstrap to make rich internet web pages and created custom date picker on the website.
• Developed RESTful APIs on AWS using Spring Boot for different modules in the project as per the requirement and still working with the other modules.
• Deployed Spring Boot based Microservices Docker container using Amazon EC2 container services and using AWS.
• Used OAuth2 authentication protocol respectively for security and authorization.
• Developed a production Node.JS application with Express module and persisted user information in MongoDB using Mongoose ORM.
• Worked with middleware using Message Driven by POJO after creating Queues on JBOSS server and used JMS template for asynchronous functionality for multiple users.
• Developed JMS components to send messages from one app to another internally.
• Used GIT as version control system to keep track of the changes allowing several developers to collaborate and used Maven as build and configuration tool.
• Used Spring Ribbon along with Spring Boot for load balancing and fault tolerance of the application.
• Spring Quartz for scheduling tasks to generating reports and emails to clients.
• Developed microservices with Spring to retrieve API routes for the entire cluster. Using this strategy each microservice in a cluster can be load balanced and exposed through one API gateway
• Experience in creating RESTful web services using Jersey, SPRING framework and JAX-RS.
• Implemented RESTful web services to retrieve data from client-side and made REST API calls from AngularJS and parsed the data to project client and handled the security and Authorization using Spring Security &OAuth2.
• Created REST-based Web Services by establishing links using HATEOAS from Spring-based Applications.
• Configured Swagger-UI registered Microservice with Eureka server to monitor service from Spring Boot.
• Implemented the business modules integration using Spring and Hibernate data mapping.
• Developed Entity objects and used Hibernate the ORM tool to access persistent data from MySQL.
• Worked on Proof of Concept for developing an application using Node JS with AngularJS and Mongo DB.
• Maintained, structured, and surveyed documents within the NoSQL MongoDB database, ensuring data integrity, correcting anomalies, and increasing the overall maintainability of the database.
• Involved in developing API’s and Rest API proxy using APIGEE edge and for sending mobile notifications.
• Published and consumed a stream of records using Producer and Consumer APIs with Spring for Apache Kafka.
• Developed Rules using Rule Engines- JBoss Drools, Workflows, human tasks to implement Business rules validations and provided Drools Dashboard for Business users.
• Configured the Docker Containers and creating Dockers files for different environments.
• Designed and developed the framework to consume the web services hosted in Amazon EC2 instances.
• Experienced with event-driven and scheduled AWS Lambda functions to trigger various AWS resources.
• Used AWS SDK for connection to Amazon S3 buckets as it is used as the object storage service to store and retrieve the media files related to the application.
• MYSQL was used as the database for the application which was hosted in the cloud using Amazon RDS service.
• Developed and maintained functions, procedures, triggers, indexes using MYSQL database programming.
• Used Jenkins as the integration tool and improved scalability of applications on cross-platforms.
• Used Maven as a Build Process and used generating Documentation, Reporting, and adding Dependencies.
• Developed test scripts in Selenium Web Driver using Java Language. Developed testing using Junit.
• Used JIRA for resolving bugs/defects in the application by coordinated with team members of the project.
• Used Git as a version control system and deployed the application in a Production environment and implemented Log4J for Logging Errors.
• Involved in Production Support and Maintenance of the application and troubleshooting of Issues on JBoss by checking logs, payments, etc.

Environment: Java 7/8, HTML5, CSS3, JavaScript, AngularJS 1.5/1.6, NodeJS, Spring, Spring Boot, Spring MVC, Spring Ribbon, Spring Quartz, Spring Security, Jersey, JAX-RS, OAuth2, HATEOAS, Apache Kafka, Swagger-UI, Eureka server, APIGEE, MySQL, Mongo DB, AWS, Hibernate, Drools, Dockers, REST, JSON, Eclipse, Maven, JUnit, Selenium, Jenkins, JIRA, Git, Log4J, JBoss.

Confidential, Chicago, IL

Java Full Stack Developer

Responsibilities:

• Well versed with complete Life Cycle Development process that includes requirement analysis, design, implementation, testing, maintenance and followed Agile methodology.
• Involved in implementing different J2EE design patterns like Service Locator, Business Delegate, and DAO.
• Implemented Core Java concepts like Multithreading, Concurrency, Exception Handling, and Collections.
• Developed presentation layer using HTML5, CSS3 and client validation using JavaScript, DOM, JSON.
• Used React JS for creating components and to render views and to update the DOM dynamically.
• Used Bootstrap, ReactJS to create Controllers to handle events triggered by clients and send a request to the server.
• With the concept of ReactJs Worked on usage metrics and an end to end events tracing for analysis purpose.
• Used Node.js for building web applications with client-server architecture, where both can initiate communication in two-way connections and allow them to exchange data.
• Worked on development of MVC Architectural pattern using Spring Framework, Spring DI and Annotations.
• Designed and integrated the full-scale Spring / Hibernate persistence solution with the application architecture.
• Involved in implementing the Micro Services based on RESTful API utilizing Spring Boot with Spring MVC.
• Worked on RESTful services for transferring and retrieving XML and JSON data between different applications.
• Developed the DAO layer for the application using Spring Hibernate template support. Used Hibernate for the persistence layer and used HQL for query purpose.
• Used RabbitMQ message broker to route messages to the clients across the cloud network.
• Wrote Docker files for creating Docker images for microservices and Docker containers for the environment. Used Kubernetes to deploy Docker containers.
• Used Eureka service registry of PCF configured for each service to enable communication via the cloud.
• Used in-built marketplace services of PCF for RabbitMQ config.
• Used config-server options of PCF for maintaining application properties pertaining to each environment and User-Provided-Config-Server (cf cups) option for Syslog and Oracle DB connectivity.
• Used NoSQL database Cassandra for proof of concept and having experience in creating a Stored Procedures and having experience in Remote Procedure Call (RPC).
• Worked on large datasets to generate insights by using Splunk.
• Converted and automated builds using Maven. Scheduled automated nightly builds using Jenkins and maintained Continuous integration effort with Jenkins along with scheduled builds.
• Worked on High level and low-level system design, planning, estimation, and implementation.
• Experience in writing Unit Tests using JUnit , Mockito .
• Helping application teams in on-boarding Splunk and creating dashboards, alerts, reports etc.
• Experience in using JUnit and build tools such as Maven. Worked on Log4j for logging errors, messages and performance logs, and SVN for version control.
• Deployed and tested the application in UNIX on IBM Web Logic Application Server.

Environment: Java, J2EE, HTML5, CSS3, JavaScript, ReactJS, Node.js, Micro Services, Spring, Hibernate, SOA, REST, RabbitMQ, PCF, Oracle 11g, Cassandra, Docker, Kubernetes, Maven, Jenkins, Junit, Mockito, Log4J, SVN, Web Logic 12c, Unix.

Confidential, Des Moines, IA

Jr. Java Developer

Responsibilities:

• Generated Use case diagrams, Class diagrams, and Sequence diagrams using Rational Rose.
• Extensive experience in designing professional UI web applications using front-end technologies and Java Script
• Frameworks like HTML, DHTML, CSS, JavaScript, XML, DHTML, XHTML, jQuery, AJAX, JSON, Bootstrap.
• Involved in writing application level code to interact with RESTful Web APIs, using AJAX, JSON, XML and jQuery.
• Worked on AJAX functionality for dynamic data binding for data grid, accordion, Ajax driven menu tabs using back end service calls and consumed both JSON and XML data in UI Side.
• Used Spring Framework AOP Module to implement logging in the application to know the application status.
• Developed the whole application using Spring MVC Framework IOC (Inversion of Control) design pattern to separate the application configuration and dependency specification from the actual application code.
• Used distributed Transactions Management system with Spring JTA.
• Used Spring Batch as spring batch jobs can meet the requirements of reliability, robustness and traceability which are essential for automatic processing of enormous amounts of data.
• Developed SOAP web services using Apache-CXF which would be available for other local osgi bundles.
• Used hibernate core interfaces like configuration, session factory and criteria interfaces.
• Involved in designing and developing the End points (controllers), Business Layer, DAO layer using Hibernate.
• Used Core Java features such Collections, and Exception handling to efficiently process high volume transactions
• Implemented complex back-end component to get the count in no time against large size MySQL database
• MQ was used to provide a single unifying transport that reduces cost and maintenance efforts, including support for HTTP, REST and JMS. WSDL was used for publishing Web Service interfaces.
• Followed Test Driven Development and wrote server-side test cases using JUnit 4.12.
• Hands on Eclipse as the integration environment for developing, debugging, and maintaining project code files.

Environment: HTML, CSS2, JavaScript, JQuery, AJAX, JSON, DHTML, JAXB, XSLT, XML, Spring MVC, Spring-CORE, SpringBatch, Spring Security, Spring AOP, Spring JTA, REST Service, Hibernate, MySQL, JMS, WSDL, Junit, Apache CXF,Eclipse.

Confidential

Jr. Java Developer

Responsibilities:

• Analyze the requirements based on business data and user requirements.
• Created user-friendly GUI interface and Web pages using HTML, jQuery, and JavaScript.
• Implemented the modules using the Model-View-Controller (MVC) design pattern.
• Developed multiple Angular Services such as for Authentication and inventory retrieval to communicate and request specific data from server
• Coded extensively in jQuery with Bootstrap to make rich internet web pages and created custom date picker on the website.
• Implemented AJAX framework for asynchronous data transfer between browser/server.
• Developed Microservices as Spring Boot app compatible with Pivotal Cloud Foundry.
• Responsible for maintaining and expanding our AWS infrastructure using AWS EC2, manage documents in S3, providing IAM access to S3 buckets.
• Implemented Microservices based Cloud Architecture on AWS Platform and Cloud Foundry.
• Used Jira as ticketing system for logging and monitoring tickets.
• Worked with Maven and XML to load dependencies and perform necessary Spring application configuration.
• Performed Spring Security configuration in order to secure application data from attack.
• Worked with Oracle database for writing complex queries and PL/SQL for Stored Procedures, Triggers, Events, and generating important responses for the application.
• Worked on Log4j for logging errors, messages and performance logs and SVN for version control.
• Used JMS for messaging, configured queues and topics on the WebLogic Application Server and used them for messaging.
• Develop GUI related changes using JSP, HTML and client validations using JavaScript.
• Developed Java beans, helper classes and Servlets for interacting with UI written in JSP.
• Wrote a controller Servlet that dispatched requests to appropriate classes.
• Developed Dispatch Action classes to define several business methods.
• Involved coding SQL Queries, Stored Procedures, and Triggers.
• Involved in Designing the Database Schema and writing the complex SQL queries using Oracle.
• Created java classes to communicate with the database using JDBC.
• Accessed stored procedures and functions using JDBC Callable statements.
• Deployed Applications on Apache Tomcat Server.
• Involved in unit testing, troubleshooting and debugging. Modifying existing programs with enhancements.
• Involved in fixing bugs the bugs or defects in the application.
• Used Log4J for any logging purposes during the development of the application.

Environment: JDK 1.6, HTML, jQuery, JAVASCRIPT, Servlets, JSP, XML, XSLT, Oracle10g, SQL, PL/SQL, MS Visio, Eclipse, JDBC, Log4J, Apache Tomcat Server.