SUMMARY

• Over 8 years SDLC experience in Design, Development, Deployment and testing of Enterprise Applications.
• Worked on new features of Java 8 annotations, Generics, enhanced for loop, Enums and Lambda expressions.
• Experience in developing User Interface using Angular framework, ReactJs, HTML, CSS and JavaScript.
• Experienced working in projects involving Agile, Scrum, Test First, Incremental and Iterative Development.
• Ambitious Go - getter with extensive adaptiveness in web application development using Spring, Hibernate, SOAP, RESTful, AJAX, XML, Drools, HTML5, JavaScript, Angular 7, React Js and Bootstrap.
• Performance Targeted Implementer with substantial experience in Service Oriented Architecture (SOA) using Web Services such as SOAP using Apache CFX, RESTful using Jersey and Jackson.
• Worked on SOA such as Apache Axis web services, SOAP, WSDL. Exposure to JAXB, JAX-WS and JAX-RS.
• Strong experience in working on modern full stack JavaScript environment likeMEAN (Mongo, Express, Angular, Node)
• Quick-witted Competent with skillful ability in using Spring 4.x(Dependency Injection, Spring MVC, Spring Security Spring JDBC, Spring Mobile, Spring REST, Spring Boot) and Object Relational Mapping frameworks (ORM's) like Hibernate with mapping of persistent classes and usage of Hibernate Query Language.
• Converted a monolithic app to microservices architecture using Spring Boot using 12-factor app methodology. Deployed, Scaled, Configured, wrote manifest file for various Microservices in AWS.
• Developed reusable and interoperable Web service modules based on SOA architecture using SOAP, RESTFUL.
• Extensively used different Tag Libraries like JSF Tags, Struts Tags, JSTL, Spring Tags, Spring EL, and Display Tag.
• Experienced in Client-side validation, Client-Server data interaction using Ajax in Nodejs.
• Developed core modules in large cross-platform applications using JAVA, J2EE, Hibernate, JSP, Servlets, JDBC, JavaScript, Ajax, JQuery, XML, and HTML.
• Technically savvy in using multiple RDBMS like IBM DB2, Oracle 9i/10g/11i, SQL Server and MySQL.
• Mission Focused Aspirant with sweeping proficiency in using version controls such as SVN and GIT.
• Experience in working on modern MEAN Stack- MongoDB, Express, Angular and Nodejs.
• Experience in database modeling, design and development of PL/SQL stored procedures, packages in relational databases: Oracle 10g/11g, IBM DB2, MySQL, Sybase, SQL Server 2000, and MongoDB.
• Worked on AWS, High Availability Practices and deploying backup/restore infrastructure
• Developed a serverless application using AWS lambda in integration with API gateway, S3, IAM, EC2 and Code Deploy.
• Expertise in software configuration management using CVS, SVN and IBM Clear Case. Hands on experience with build tools like ANT, Maven and logging tools like Log4J.
• Spearheaded Application Developer conversant with developing applications using various servers including Apache Tomcat, IBM WebSphere, BEA WebLogic and JBoss Application Server.
• Experienced in developing UNIX Shell Scripts for batch processing.

TECHNICAL SKILLS

Programming Languages: C, C++, Java/J2EE, SQL, PL/SQL, Python

Java APIs: J2EE, EJB, Servlets, JSP, JSTL, Custom Tag Libraries, JAX-RPC, JDBC, JNDI, JMS, JAXB, JUnit, Mockito, AWT, Spring MVC, Hibernate, Spring AOP, Spring DAO, Spring Core, Spring Security, Spring REST, Spring Boot, JPA, Log4j, Apache Kafka.

Frameworks: Spring, Hibernate, MEAN Stack

Scripting Languages: JavaScript, TypeScript, jQuery

Web Technologies: HTML/HTML5, XML, CSS/CSS3, Bootstrap, JSP, Ajax, NodeJS, Express, ReactJS, AngularJS, Angular 2.0 and above

Web/Application Servers: Apache Tomcat, WebSphere, WebLogic, JBoss

IDE’s: Visual Studio Code, Eclipse, NetBeans, IntelliJ, IBM RAD, WSAD

Databases: Oracle, MySQL, PostgreSQL, DB2, MongoDB, Cassandra

Operating Systems: Windows, MacOS, Unix, Linux (Ubuntu, Red Hat)

Version Control: CVS, Clear Case, SVN, GitHub, Bitbucket

Methodologies: Agile, Waterfall

Other Software Tools: MS Office, Visio, Adobe Photoshop, HPALM, JIRA

Build Tools: Maven, Gradle, Ant

PROFESSIONAL EXPERIENCE

Sr. Java Full Stack Developer

Confidential, Evansville, IN

Responsibilities:

• Worked on complete Agile Development, story grooming, estimations, retrospectives and spring planning.
• Developed KBS flows using ARD from User Stories.
• Developed user interface with HTML5, CSS3, JSON, AJAX, Angular and Type Script.
• Worked on Streams, lambdas and functional interfaces using Java.
• Worked with single page application framework Angular extensively using routing, services, views, directives navigation through the different status and multiple modules.
• Used Angular HTTP Module to make API calls and worked with the observables.
• Used other front-end technologies such as Java 8, JavaScript, JQuery, HTML5, CSS and Bootstrap.
• Designed and Developed REST Web Services based on REST architecture, implemented various HTTP methods, did Error Handling to provided data to the front end Angular in JSON format.
• Developed RESTful service interface using Spring Boot to the underlying Agent Services API.
• Established simulation service with Spring Boot and REST.
• Implemented the Project structure based on Spring MVC pattern using Spring Boot.
• Developed multiple POCs to create an interface between Backend to Frontend by usingMongoDB,ExpressJS,AngularJSandNode.js.
• Created forms to collect and validate data from the user usingAngularJS, jQueryandJavaScript.
• Developed Multi-Threaded Producer and Consumer MQ applications using spring boot.
• Developed RESTful service interface using Spring Boot to the underlying Agent Services API.
• Used Spring Inheritance to develop beans from already developed parent beans.
• Integrated Spring ORM frameworks Hibernate for database operations with ORACLE.
• Used Hibernate Transaction Management, Hibernate Batch Transactions and Cache concepts.
• Used Apache Kafka for building real-time streaming data pipelines (Message Queues) for asynchronous exchange of vital information between multiple business applications.
• Written SQL Scripts and PL/SQL Scripts to extract data from Database and for Testing Purposes.
• Supporting daily loads and work with business users to handle rejected data.
• Developed Interfaces using UNIX Shell Scripts to automate the bulk load & update Processes.
• Executing test scripts to verify actual results against expected results by using Power Connect for source (DB2) validation and Oracle for target validations.
• Supported Change Management Tasks to deploy code in QA Cert Testing and then into Production.
• Utilized AWS Lambda platform to upload data into AWS S3 buckets and to trigger other Lambda functions.
• Installed the application on AWS EC2 instances and configured the storage on S3 buckets.
• Worked on Kubernetes creating and managing containerization of application.
• Worked on creation of custom Docker container images, tagging and pushing the images.
• Performed unit testing for java using JUnit and Jasmine framework for JavaScript testing.

ENVIRONMENT: HTML5, CSS3, AJAX, JSON, SAAS, Type Script, Bootstrap, Java, Spring Boot, Spring MVC, Hibernate, Angular 7.0, REST Web Services, AWS, Soap UI, Docker, Apache Kafka, JUnit, Agile.

Java Full Stack Developer

Confidential, Lake Success, NY

Responsibilities:

• Developed Single Page Applications (SPA) using Angular 5, TypeScript, HTML5, CSS3, and Bootstrap.
• Used Reactive Forms Module with Angular 5 for easy custom validations. Developed reusable custom directives, components, pipes, and services.
• Involved in Requirements gathering, Analysis, Design, Development and Testing of application using AGILE methodology (SCRUM) in a test-driven development (TDD) approach.
• Involved in developing Angular 5 forms like Template Driven Forms and Reactive forms (Dynamic Forms) to perform form validation both on the server side and client side.
• Involved in using new features with Angular 5 like NgIf with Else, Pipes, compare selector and Validators followed by the client requirements.
• Moved existing monolithic architecture to Microservices architecture using Spring Boot.
• Address heavy traffic situation and migrating user-specific data off service instances by using Microservices.
• Design and develop Restful APIs to establish a communication channel between various Microservices.
• Implemented Core Java concepts like Multithreading, Collections, Generics & Exception Handling to solve business challenges.
• Implemented Java 8 features such as lambda expressions & Functional Interfaces, Stream APIs on collections to improve the overall performance.
• Implemented persistence layer using Spring JDBC template to store and retrieve the data in Oracle database.
• Design complex SQL queries using correlated subqueries, joins, recursive queries, PL/SQL stored procedures, Triggers.
• Design and enhance Kafka producers to stream the data from external rest APIs to Kafka topics.
• Design JUnit test cases to perform unit testing and to improve code coverage.
• Execution of Selenium Test cases and Reporting defects.
• Involved in Regression Testing using Selenium.
• Experience in Web application functional testing using Selenium.
• Monitor the Error logs using Log4j and fixed the problems.
• Create Docker containers for managing the life cycle of an application.
• Validate the various REST endpoints across the microservices application using postman.
• Implemented CORS (Cross Origin Resource Sharing) using Node JS and developed REST services using Node
• Implemented OAUTH 2 (Rest service authentication) in our application in order to communicate securely with other protected resources by exchanging access tokens for authentication instead of using user name and passwords.
• Involve in deploying systems on AWS Infrastructure services EC2, S3, SQS, RDS & Cloud Formation.
• Designed and built security architecture using AWS Lambda, AWS API Gateway, AWS Cognito and AWS STS.
• Setup CI/CD pipeline process for the application using the Jenkins tool.
• Apache Maven tool has been used for building and deploying the application.
• Participated in all the scrum ceremonies like scrum meeting, retrospection & sprint planning.
• Used JIRA tool for tracking new requirements, enhancements, bugs and Bitbucket for version control.

Environment: Java 8.0, Spring 4, Hibernate 4.2, Spring Batch, Spring Boot, Spring Cloud, JPA, JMS, HTML5, Agile, Node CSS3, Eclipse, Oracle 11g, Log4j, JIRA, Pure XML, REST, Web Services, Kafka, Microservices, Angular 5, Selenium.

Sr Java Developer

Confidential, Bothell, WA

Responsibilities:

• Designed, coded, implemented, optimization and tested new features and modules for the derivatives system as part of an Agile team and improved automation test suites.
• Utilized Modernizer extensively to build HTML5/CSS3 based page layouts that are cross-browser compatible.
• Utilized create-react-app to launch product to stay update with current Webpack configuration.
• Developed Web API using Node JS and hosted on multiple load balanced API instances.
• Developed Spring Boot to fasten the application for removing boiler plate configurations.
• Used loosely coupled architecture Spring Boot. Developed Micro Services in the application by using Spring Boot.
• Developed Micro Services for service-oriented architecture to build flexible and independently deployable software.
• Developed RESTWeb Services clients to consume those Web Services as well other Enterprise Wide Web Services.
• Worked with Spring AOP module to perform logging operations.
• Developed independent Microservices using Spring Boot Rest Controller model and are deployed on UNIX boxes.
• Employed Spring Boot for initialize and bootstrapping the build configuration for the boot-based web applications.
• Development of cloud hosted web applications and REST APIs using Spring Boot with embedded Tomcat.
• Extensively Used Jenkins as Continuous Integration tools to deploy the Spring Boot Microservices to Pivotal Cloud Foundry (PCF) using build pack. Used Pivotal Cloud Foundry to quickly build, deploy and update the applications.
• Utilized Hibernate for Object Relational Mapping (ORM) purposes for persistence on to the database.
• Developed different join strategies with Hibernate to improve performance while retrieving collection items.
• Used Spring MVC and Hibernate to establish the Connection with Database for Stored Procedures.
• Involved in implementing Queries to the backend MongoDB database using Http service to fetch JSON contract.
• Unstructured data was handled using Mongo DB and used Mongoose Connector for connecting to database.
• Composed and executed MongoDB scripts and queries to fetch and test data from NoSQL databases.
• Responsible for installation & configuration of Jenkins to support various Java builds and Jenkins plugins to automate continuous builds and publishing Docker images to the Nexus repository.
• Used CI/CD tools Jenkins, Git/Gitlab and Docker registry for configuration and automation using Ansible.
• Used Drools as rule engine to categorize salient level rule to every business rules base on the business needs.
• Experienced in working with Babel and Webpack in application build and deployment processes.
• Created plugins to extract data from multiple sources like Apache Kafka, Database and Messaging Queues.
• Ran Log aggregations, website Activity tracking and commit log for distributed system using Apache Kafka.
• Deployed and monitored scalable infrastructure on Amazon web services specifically on AWS EC2.
• Performed UI and front-end testing using Selenium. Developed test case and performed unit testing with Mocha.

ENVIRONMENT: Java 8.0, Spring 4, Hibernate 4.2, Spring Batch, Spring Boot, Spring Cloud, JPA, JMS, HTML5, Node CSS3, Eclipse, Oracle 11g, Log4j, JIRA, Pure XML, REST, Web Services, Kafka, Microservices

Java Developer

Confidential, Urbandale, Iowa

Responsibilities:

• Focused on Test Driven Development thereby creating detailed JUnit tests for every single piece of functionality.
• Developed and designed User Interface using JavaScript, HTML, CSS, DOM, XHTML, AJAX, Bootstrap, and Angular JS.
• Developed the J2EE application based on the Service Oriented Architecture.
• Developed User Interface with technologies like HTML, Angular JS and JQuery.
• Used Angular two-way binding and implemented the search functionality using Angular JS.
• Used Angular JS Directives like ng-app, ng-model, ng-repeat, ng-show, ng-hide, ng-controller, ng-route.
• Involved in configuring mapping files and POJO objects and used Singleton Design Pattern for web application.
• Implemented logging using log4j and implemented various cross-project functionalities using Spring AOP.
• Developed web applications using Spring MVC to maintain loose coupling between the layers.
• Used Spring ORM module to integrate with Hibernate.
• Used Apache Maven for project management and building the application.
• Used Log4j utility to generate run-time logs and CVS was used for project management and version management.
• Performed Regression testing on new builds, every modification in the application using Selenium Web driver.
• Deployed the application onto WebLogic application server and developed Functional Requirement Document for Beans Binding and seamless integration with spring framework and for routing unit test by Apache Camel.
• Used Pivotal Cloud Foundry to quickly build, deploy and update the applications
• Used ANT and Jenkins for Build process and continuous integration.
• Utilized Grunt and Node for templating and build, component-based Angular architecture and SASS preprocessing
• Implemented core java Multithreading, Collections, Exception handling and used generics.
• Developed test driven development code using JUnit.
• Involved in requirements gathering and Capacity planning for Multi-Datacenter and Cassandra Cluster.
• Used Karma Test runner and Jasmine Testing frameworks.

ENVIRONMENT: Cassandra, J2EE, Java 1.6, Spring framework, Spring MVC, Spring AOP, Spring ORM, Hibernate, JSP 2.0, Angular JS, Web services, XML, AWS, Pivotal Cloud Foundry, JQuery, Log4j, JavaScript, Oracle 10g, WebLogic, Apache Maven, HTML 5, karma, Jasmine, JUnit, Jenkins.

Java App Developer

Confidential

Responsibilities:

• Designed and coded application components in an Agile environment.
• Implemented Model View Controller (MVC-2) Architecture using Jakarta Struts framework at presentation tier.
• Used Struts frameworks and MVC design patterns to complete several projects on complex areas of development including user interface design, batch processing, stored procedure development, XML, data exchange and integration.
• Extensive use of Struts Framework for Controller components and view components.
• Implemented Spring IOC for inter connection between modules in our application.
• Designed and Developed UI using JSP by following MVC architecture.
• Developed the application using Struts framework. The views are programmed using JSP pages with the struts tag library, Model is the combination of EJB's and Java classes and web implementation controllers are Servlets.
• The Java Message Service (JMS) API used to allow application components to create, send, receive, and read messages.
• Expertise in coding optimized SQL queries on databases like Oracle.
• Developed back-end PL/SQL packages, UNIX shell scripts for data migration and batch processing.
• Created and customized UNIX shell scripts for automating regular maintenance and batch jobs.
• Involved in performing Unit and Integration testing Junit.

ENVIRONMENT: Core Java, J2EE 1.3, JSP 1.2, Structs, Spring IOC, EJB 2.0, Struts 1.1, JDBC 2.1, Oracle 8i, UML, JMS, XML, Web Logic 7.0, MVC Design Pattern, Eclipse 2.1, Log4j and JUnit.