SUMMARY

• 7 years of Full Stack development experience in all phases of Software Development Life Cycle (SDLC) which includes Analysis, Design, Development, Implementation and Testing of web based, enterprise business applications in different application architectures like Monolithic, Service Oriented Architecture, Microservices, N - tier and Event-driven.
• Worked extensively with JAVA 8 features like Stream API, Time API, Functional Interfaces Multithreading, Transaction Management, Exception Handling, Collection API.
• Strong experience in developing Dynamic Single Page Application (SPA) using MEAN (Mongo, Express Angular and Node) full stack development tool kit.
• Good amount of hands-on experience in developing server-side JavaScript frameworks using Node JS (Hapi JS, Express JS) to build event driven, non-blocking me/o model web applications.
• Developed custom filters and model driven forms in Angular and linked them with HTML.
• Experienced in AngularJS, Backbone JS, Ext JS for unique and customized front-end app development and to achieve MVC design flow.
• Well experienced in developing applications using Jquery, React JS, Handlebar JS for view rendering, and implementing React JS with Redux and Flux patterns to attain MVC functionality.
• Strong experience in developing Dynamic Single Page Application (SPA) using MEAN (Mongo, Express Angular, and Node) full-stack development tool kit.
• Good amount of hands-on experience in developing server-side JavaScript frameworks using Node JS (Hapi JS, Express JS) to build event-driven, non-blocking me/o model web applications.
• Expertise in using Javascript build tools and task runners like Webpack for React and Angular 7.0/8.0, Grunt, production build for angular 2.0 with Gulp, Browserify for packaging Node JS modules for browsers.
• Worked on UI testing with Karma, Jasmine, Protractor for AngularJS, Mocha, and Chai for React JS and Backbone JS.
• Good knowledge of package manager tools such as NPM and Bower for dependency management.
• Worked extensively with JAVA 8 features like Stream API, Time API, Functional Interfaces Multithreading, Transaction Management, Exception Handling, Collection API.
• Have good knowledge of different databases like PostgreSQL, MySQL, DB2, Oracle 13c/11g, Microsoft SQL Server, NoSQL DB (MongoDB, Cassandra, Couch DB, Redis, DynamoDB) and good experience in writing stored procedures, functions, and triggers using PL/SQL in JDBC, ODBC and in WebLogic server.
• Expertise to interact with relational databases using ORM frameworks like Hibernate, Spring Data, JPA, IBatis, MyBatis, Java Persistence API (JPA), Hibernate’s second-level cache - Ehcache.
• Have experience using ODM frameworks to connect asynchronous environments with Mongoose Connector and Cassandra Node Driver.
• Experienced in configuring and deploying applications on different servers such as Apache Tomcat, Web logic, IBM WebSphere, JBoss.
• Worked with various frameworks in Spring such as Spring IOC, AOP, Spring transaction Management, Spring Data, Spring JDBC, Spring Batch, Spring JTA, Spring IO, and Spring Security (Spring Security, Site Minder).
• Developed and deployed Microservices based applications using Spring Boot and Spring Cloud.
• Proficient in using Spring Data JPA dat halped in creating automatic Data Access Objects (DAOs) at teh compile time.
• Extensive experience in developing scalable, reliable, efficient web and enterprise applications using JSP, EJB, JNDI, JMS, Struts, JSF (Prime Faces).
• Developed multiple applications using Spring Community framework projects and used Spring and EJB containers to manage teh bean life cycle.
• Developed projects with RESTful services (JAX-RS, Spring Boot), SOAP (JAX-WS, Apache CXF, WSDL, Apache Axis2) and automated teh documentation using Swagger and WADL.
• Unit tested web services using Junit, Mockito Easy mock, SpringJunitRunner, Spock, Test NG and hence achieved teh goals of Test Driven Development (TDD).
• Developed self-contained, black-box projects using Service Oriented Architecture (SOA).
• Good knowledge of providing authentication and authorization for web services using OIDC (OpenID Connect) on top of OAuth 2.0.
• Efficient in creating access tokens using JWT (JSON Web Token) to assert claims.
• Have good knowledge on XML languages like SAX, XSD, DOM, XPath, DTD, JAXB, JAXP, XSL/XSLT.
• Experienced in handling message queues using JMS, Rabbit-MQ, IBM-MQ, Active-MQ and Apache Kafka.
• Experience in integration tools like Spring Integration, Mule ESB, Apache CXF, Apache Kafka and Apache Camel to integrate teh enterprise application technologies with existing JVM environments.
• Building real-time dashboard applications for visualizing, analyzing, and exploring data on Apache Web servers using ElasticSearch, Logstash, and Kibana 4.0 (ELK), Splunk.
• Good knowledge in employing database caching strategies using Redis, MongoDB Elastic search.
• Hands-on experience in implementation of PCF (Pivotal Cloud Foundry) Paas (Platform as a Service) services such as Pivotal Application Service, Pivotal Container Service, and Pivotal Functional Service to continuously deliver applications to teh cloud.
• Well experienced in using various AWS (Amazon Web Services) Iaas (Infrastructure As a Service) Components like EC2 for running applications on virtual machines, S3 and Glacier for storing and long term backup of data, EBS for persistent block-level storage, Elastic Cache, DynamoDB, SQS for message queueing, RDS for setting relational database in cloud and Lambda for serverless program functions.
• A better understanding of using Spring Cloud - Netflix OSS stack for microservices deployment and auto configurations like Ribbon (client-side Load Balancer), Hystrix (latency and fault tolerance library), Zuul (gateway for routing, monitoring, security) with Eureka service registry and log management with ELK.
• Implemented Docker container service, build pipeline Jenkins, Bamboo and CI/CD for Continuous Integration and Continuous Deployment dat can run on teh cloud or on-premises
• Good practical experience with Java-basedloggingutility. me.e. log4J.
• Used Kubernetes Linux container for deploying and scaling containerized applications.
• Strong Knowledge on automated java-based integration testing and behavioral testing of teh applications using Selenium and Cucumber respectively.
• Better understanding of using Spring Cloud - Netflix OSS stack for microservices deployment and auto configurations like Ribbon (client-side Load Balancer), Hystrix (latency and fault tolerance library), Zuul (gateway for routing, monitoring, security) with Eureka service registry and log management with ELK.
• Used Kubernetes Linux container for deploying and scaling containerized applications.
• Good knowledge on Drools Rule Engines which corresponds to validating BRMS (Business Rules Management System).
• Experience in writing MAVEN scripts and using Ant for build and release management during teh project life cycle.
• Experience working with JIRA to track teh status of teh application.
• Experience JUnit, Mockito, Log4jin developing test cases and determining application functionality.

TECHNICAL SKILLS

Languages: Java (JDK 1.4/1.5/ 1.6/1.7/1.8 ), C++, SQL

Web Technologies: HTML5, CSS3(Sass and less), JavaScript, AJAX, JSON, Bootstrap, jQuery, Angular2.0/4.0, React JS with Flux, Redux, Handlebar JS, Backbone JS, NodeJS, Express JS, Hapi JS

J2EE Technologies & Frameworks: Servlets, EJB, JSP, JSF, JDBC, SOAP, WSDL, REST, XML, JAXP, JAXB, JPA, JMS, Spring 3.x/4.x/5.x, Struts, Hibernate 2.x/3.x/4.x/5.x, Spring MVC, Spring Boot, Spring Data, Spring Batch, Spring Cloud, Dump Analysis.

Messaging Services: JMS, Rabbit MQ, IBM MQ, Apache Kafka

Web service frameworks: JAX-RS, JAX-WS, Apache CXF, Axis, Jersey, SOAP, RESTful, WSDL

Application/Web Servers: Apache Tomcat, Oracle Web Logic, IBM Web Sphere, JBoss

IDE Tools: Eclipse, NetBeans 6.9,6.8, Visual Studio, IntelliJ, Spring Tool Suite, Sublime Text, WinSCP, Putty

Databases: Oracle 9/10/11g/12c, DB2, MySQL 7.1.9, SQL Server 2000/2005/2008 , MongoDB, Cassandra.

Cloud Technologies & DevOps Tools: AWS, PCF, EC2, EBS, S3, Docker, ECS, EBS, EKS, SQS, RDS, S3, Glacier, Lambda, Kubernetes

Methodology: Agile, Waterfall, TDD, UML, Scrum

Build & Configuration Tools: Ant, Maven, Gradle, Jenkins, Bamboo Gulp, Grunt, Webpack, NPM, Bower

Testing Tools: Junit, TestNG, Mockito, Jasmine, Karma, Mocha, Chai, Spock, Protractor

Project Management Tools: JIRA, Rally, Microsoft Project

Operating System: Windows, Linux, Unix, MAC.

PROFESSIONAL EXPERIENCE

Confidential, Tampa, Florida

Sr Full Stack Java Developer

Responsibilities:

• Developed teh single-page application following Agile Scrum, participated in daily standups, sprint reviews, Kickoffs, and used Jira for project management.
• Involved in Software Development Life Cycle for gathering requirements, Analyzing, Designing, Developing, and Testing applications using Agile methodology.
• Teh application is built in Micro Service Oriented Architecture using MEAN 4+ (Mongo, Express Angular 8.0 and Node) stack and developed Single Page Applications (SPA).
• Developed multiple Angular 11.0 components dat are compatible with teh latest versions of typescript, angular CLI.
• Designed teh user interface screen and its functionality as per user requirements and developed RESTful Web services in Mule ESB based on Service Oriented Architecture (SOA).
• Used different transformers, exception handling, testing & Security of Mulesoft ESB endpoint through OAuth.
• Designed and developed efficient user Interaction screens using HTML5, CSS3-SASS, and Twitter Bootstrap CSS framework and media queries to create responsive web pages.
• Created dynamic schema design through NoSQL MongoDB by writing rich queries and achieved data in a collection to be distributed across multiple systems for horizontal scalability as data volumes increase through Sharding.
• Implemented Java11 features like Lambda expressions, Streams, filters, pipelines, Optional Interfaces, etc.
• Hands-on experience using ODM frameworks to connect asynchronous environments with Mongoose Connector and Cassandra Node Driver.
• Worked with KAFKA Zookeeper for managing teh cluster with broker/cluster technology.
• Configured JBOSS Application server and used Oracle database with Hibernate ORM framework and used teh functionalities of Hibernate's second level EHCache.
• Implemented Microservices architecture with Netflix, Spring Eureka, Spring Ribbon using Spring Boot to provide client-side load balancing in calls to other Microservices, making applications into smaller chunks and teh Spring Hystrix circuit breaker and for teh fail-safe.
• Wrote Drool rules in both rule flow and drooled fusion for fetching teh facts from teh database.
• Kubernetes is configured in teh application for automating deployment, scaling, and management of containerized applications.
• Hands-on experience on Dump Analysis and thread Dump common problem patterns (Thread race, deadlock, hanging IO calls, garbage collection / OutOfMemoryError problems, infinite looping, etc.).
• Implemented Spring Netflix Zuul API gateway and Eureka service registry for reverse proxy and Dynamic service discovery of APIs.
• Responsible for migrating existing modules in IBM MQ to Apache Kafka and creating Kafka adaptors for decoupling teh application dependency.
• Used Cassandra for storing internal statements and reports and worked extensively in Development which includes updating and retrieving data internally from teh back-end Cassandra.
• Implemented AWS solutions using E2C, S3, RDS, EBS, Elastic Load Balancer, Auto scaling groups, Optimized volumes, and EC2 instances and created monitors, alarms, and notifications for EC2 hosts using Cloud Watch.
• Configured and managed various AWS Services, including EC2, RDS, VPC, S3, Glacier, CloudWatch, CloudFront, Route53, SQS, SNS, etc.
• Implemented a 'server less' architecture using API Gateway, Lambda, and DynamoDB and deployed AWS Lambda code from Amazon S3 buckets. Created a Lambda Deployment function and configured it to receive events from you're S3 bucket.
• Worked with Jenkins to configure Continuous Integration and Continuous Deployment (CI/CD).
• Implemented Spring Circuit breaker pattern, integratedHystrix dashboard to monitor Spring microservices.
• Participated in code review and mentoring sessions and used GIT as version control and GITBash for GIT interactions.
• Experience in building isomorphic applications using React.js and Redux with GraphQL on teh server-side.
• Experience in working with GraphQL queries and use teh Apollo GraphQL library.
• Experience working with (consuming) REST or GraphQL APIs via client-side JavaScript or server-side via NodeJS.
• Programmed J2EE application to manage transaction reports for Oracle Financials Application Processes.
• Authenticating Users to provide security to RestFul web services using OAUTH 2.0.
• Worked on UI testing with Karma, Jasmine, Protractor for Angular, Mocha, and Chai for React JS and Backbone JS.

Environment: Java, Angular 11.0, J2EE, Git, Spring Boot, Hibernate, Core Java, Rest, Web Services, CSS, Eclipse RCP SASS, WSDL, JIRA, JMS, PostgreSQL, AWS, Spring Cloud, Spring batch, PCF, Apache JMeter, jQuery, JUnit, Docker, Maven, Jenkins.

Confidential, Seattle, WA

Full Stack Java Developer

Responsibilities:

• Participate in teh application's requirement gathering, analysis, design, development, and testing utilizing teh Agile process. worked on Java 1.8 and made use of its new features when writing code, including Lambda expressions, resource classes, and database document retrieval.
• React and Redux were used to create teh user interface, and gulp, webpack, and NPM tools were used to build systems and create a Node-powered workflow. me rewrote teh front-end application using React Hooks. a functional component was used in place of teh React class component. Replaced by new hooks like useState, useTEMPEffect, useReducer, and useRef for stateful management.
• Utilized React's lifecycle methods, such as React-Router and componentDidMount, componentUpdate, and componentWillUnmount.
• Used Axios service to retrieve data from server synchronously in teh background without interfering with teh display and existing page in an interactive way.
• Used React routers for connecting teh API’s which enforces teh communication to teh server while also implementing mock services in Node.js with teh halp of modules using Express.js.
• Used Spring Boot which is radically faster in building cloud Microservices and developing Spring based applications with very less configuration.
• Used Spring Boot Actuator to externalize application's configuration properties for different environments and RESTful web services using spring Boot and Spring Rest.
• Teh implementation of functionality involves creating RESTful web services with spring Boot.
• Worked with Spring Cloud and Netflix OSS-Eureka for service registration and discovery and with Zuul API gateway for Spring boot Application.
• Developed application on Spring framework by utilizing its features like Spring Dependency injection, Spring Beans, Spring Security, Spring JPA, Spring AOP, Spring IOC, Spring Web flow using MVC.
• Used Spring Transactions in teh application and developed Session beans for teh business logic at teh middle tier level.
• Implemented teh Spring IOC for teh core business application logic and used Hibernate as persistence framework.
• Worked with Spring Batch to convert xml files to database records using Quartz Scheduler.
• Implementation of teh Bottle microframework utilizing a MySQL database and RESTful API. asynchronous processing's communications infrastructure was Apache Kafka. used Amazon EC2 for testing lower environments like Dev, INT, and Test, as well as for deploying instances.
• We used AWS Lambda with Step Functions to build teh event-driven architecture, and we set up Amazon RDS to host Oracle 12c.

Environment: HTML5, CSS3, Redis, Express JS, jQuery, JavaScript, Node JS, Bootstrap, REST API, Load Balancer, Mongoose Connector, MongoDB, REST administrations, Docker, Mocha, Jasmine, Karma, Gulp, SSO Authentication, WebPack, Kubernetes, Selenium, Maven, and Jenkins. GIT, Jenkins, AWS Services, Elastic Cloud Compute (EC2).

Confidential, St. Louis, MO

Java Full Stack Developer

Responsibilities:

• Involved in all stages of SDLC like Requirement Analysis, Design and Implementation in Agile Methodology.
• Developed presentation layers using HTML5, CSS3, and Angular4 router to build single page applications to navigate through teh different status and multiple modals.
• Used Angular 4 to associate HTML elements to models, to provide dynamic user validations on teh client side.
• Worked on UI components using Angular2 Dependency Injection, Models, data binding and controllers.
• Worked on Java8 features like Lambda expressions, Streams, filters, optional classes and default methods.
• Used Executor Service Interfaces, ThreadPoolExecutor class for multi-threading & thread resource pooling.
• Worked on Spring MVC Transaction Management, Spring/Hibernate Batch Transactions and Hibernate cache, Spring Boot components to implement business layer and navigation part of application.
• Developed teh Application using design patterns-Singleton, Factory, DAO, DTO prototype and Composite View.
• Implemented Microservices architecture with Netflix, Spring Eureka, Spring Ribbon using Spring Boot to provide client-side load balancing in calls to other Micro services making applications into smaller chunks and also teh Spring Hystrix as circuit breaker and for teh fail-safe.
• Involved in developing Restful service API’s endpoints in microservice architecture.
• Developed MongoDB Data Access Layer implementing Mongo Repository interface from Spring Data.
• Implemented a distributed messaging queue to integrate with MongoDB using Kafka and Zookeeper.
• Developed various SQL queries andPL/SQLProcedures inOracleDBfor teh application.
• Worked on UNIX/Bash environments across EC2 servers with Docker hosts & Kubernetes to manage docker images.
• Involved in Designing and deploying AWS solutions using EC2, S3, RDS, EBS, Elastic Load Balancer, Auto scaling groups. Supporting Systems Infrastructure comprises Linux OS, AWS, EC2 clusters.
• Worked on instantiating multiple AWS EC2 servers by using YAML Script in Ansible playbook. Experienced DevOps methodologies by implementing CI/CD Pipelines using tool sets like GIT, Jenkins, and AWS
• Utilized AWS Lambda platform to upload data into AWS S3 buckets and to trigger anotherLambda functions.
• Wrote Drool rules in both rule flow and drools fusion for fetching teh facts from teh database.
• Worked with API Management product ofAPIGEEin consuming teh API’s in implementing customer use cases.
• UNIX Shell scripts for Bash shell to automate deployments and environment configurations on teh EC2 Clusters
• Developed Apache Spark jobs using Java in a test environment for faster data processing and used Spark SQL.
• Designed and Developed teh Automation Testing Framework using Java, Selenium Web Driver and TestNG.

Environment: HTML, CSS, JavaScript, Angular2, Node.js, Java8, Java/J2EE, Spring MVC, Restful Web Services, Microservices, Netflix, Spring Eureka, Spring Ribbon, Spring Boot, Spring Hystrix, AWS, EC2, S3, RDS, EBS, Elastic Load Balancer, Docker, Ansible, Jenkins, Chef, Linux OS, Selenium, TestNG, DROOLS, APIGEE, MongoDB, Maven.

Confidential

Full Stack Java Developer

Responsibilities:

• Bootstrap components for responsive UI objects were built using React JS and connected to API data to view and render teh virtual DOM dynamically.
• Teh entire layout design and prototype using React JS and teh Redux library, jQuery UI, CSS/Less, and HTML5 are under you're control.
• To keep teh application lightweight and TEMPeffective, Node JS was used as a server-side proxy for an event-driven, non-blocking me/O paradigm. extensively used REACT with Redux Architecture to write minimal code to create reusable forms with associated validations.
• Adequate familiarity with Java 8 core concepts, Time APIs, and Lambda expressions
• When data is flushed or committed from one of teh open tabs, session-level Data Structure’s shared across those tabs are cleaned up as efficiently as possible.
• Model View Controller (MVC) design pattern-based application architectures and teh Struts 2 framework for front-end development and presentation logic have been implemented.
• All client-side validations were created in JavaScript, and a GUI was created using CSS, JSTL, and XSL.
• Apply targeted development changes to Oracle databases and watch teh changes take TEMPeffect as they pass through teh testing and production life cycles using an internal deployment tool.
• Define teh needs and requirements for teh development of an application employing SQL, Oracle R12, Oracle Forms, and Oracle Reports.
• React JS is used with teh Web Pack module bundler and teh Babel JavaScript compiler.
• Our React-frontend application's CRUD back-end was built using Spring Boot.
• Utilized Jenkins for CI/CD (Continuous Integration and Continuous Deployment).
• Performed Unit testing on ReactJSapplications using Karma and Jasmine tools and worked with teh Gulp tool to build automation.
• DevOps role converting existing AWS infrastructure to Server-less architecture (AWS Lambda, Kinesis) deployed via CloudFormation.
• Experience in integration testing tools like Selenium Web Driver, Cucumber (Behaviour Driven Development testing).

Environment: AJAX, Bootstrap, JSON, XML, Active MQ, JMS, Hibernate, DB2, SOAP-AXIS2, Restful services, JAX-RS SOA, Java, J2EE, JSP, HTML, MVC, Servlets, Struts, MyBatis, JMS, MDB, EJB3.1, JUnit, PL/SQL, DAO, Web Logic Server, Ant, SOAP, JAX-WS, WSDL, Junit, SQL.

Confidential

Java Developer

Responsibilities:

• Developed a Monolithic application and generated UI screens using JSP, HTML, CSS, JavaScript.
• Worked on JSP, Servlets, Struts framework and production support issues of teh existing applications.
• Involved in development of Action Forms, Action Servlets, Action and Validating Action Forms in Struts framework.
• Implemented Struts Dispatch Action class and formed bean classes using struts framework.
• Client-server validations were handled using StrutsValidator Framework validate plug-in.
• Implemented Multithreading for handling multiple requests and for high performance.
• Developed model components using session beans and used local message driven beans (MDB) to interact with sessions using EJB.
• Responsible in creating Servlets, which route submittals to appropriate EnterpriseJavaBean (EJB) components and render, retrieved information and EJB Session Beans were used to process request from user interface using OSS.
• Java message queue(JMS) is used for exchanging information and messaging services.
• Designed and developed Message Driven Beans(MDB) dat consumed teh messages from teh JMS.
• Build and maintain SQL scripts, indexes, and complex queries for data analysis and extraction.
• Develop a business continuity plan for teh SQL Server DatabasesusingJDBCdrivers.
• Created many Stored procedures and scheduled jobs to support our applications to create reports for customers.
• Experience in installing, configuring and deploying applications on Web Logic Server.
• Developed DAO pattern to retrieve teh data from teh database.
• Developed SOAPweb services(JAX-WS) for sending and getting data from different applicationsWSDL generation and exposed teh service at server-side over teh Internet and tested teh services using JUnit.
• Deployed application on Client Linux server.
• Used ANT build tool for compiling and generating war files.

Environment: Core Java, J2EE, JSP, HTML, MVC, Servlets, Struts, MyBatis, JMS, MDB, EJB3.1, JUnit, PL/SQL, DAO, Web Logic Server, Ant, SOAP, JAX-WS, WSDL, Junit, SQL.