PROFESSIONAL SUMMARY:

• Around 9 years of experience in Cross - Platform (Web & Client-Server) application development and design using Object-Oriented Programming, Core Java, J2EE technologies.
• Experienced working in both Agile and Waterfall based development environment and participating in Scrum sessions.
• Utilized Java 8 features like Lambda expressions and Stream API for Bulk data operations on Collections which would increase the performance of the Application.
• Have strong exposure and work experience on core java concepts collection API, Stream API, Parallel Streams, exception handling, Multithreading, HashMap, concurrency, JDBC, modularity, executor service, fork and join frameworks.
• Expertise in Microservices development dealt with Traffic Management and scope functionality, highly proficient in designing n-tier Enterprise application with J2EE design patterns like IOC (Inversion of Control), AOP (Aspect Oriented Programming), MVC, Business Delegate, Service Locator, Session Façade, DTO, DAO, Front Controller, Factory, and Singleton.
• Designed and developed J2EE MVC applications using Struts, Spring MVC and Spring Boot.
• Expertise in designing, developing, and deploying applications using J2EE technologies including Servlets, JSP, EJB, JSTL, Struts, Spring, Spring Boot, JSF, JMS, AJAX, JDBC, JNDI, GWT Java Beans, Hibernate and Web Services.
• Expertise in several J2EE technologies like JSP, Servlets, JavaScript, Web Services (SOAP, REST) and JSF.
• Expertise in Hibernate, Spring, EJB (Entity Session Message Driven Bean), Ajax, Java Beans, JNDI, JMS, Java Mail, XML, Sockets using IDE's like Eclipse.
• Experience in designing and developing middleware components for embedded systems, using C, C++, STL, multi-threading (POSIX), Boost libraries and design patterns.
• Expertise in Programming with JDBC, EJB, JNDI, JMS, Servlets, JSP and Custom tags using Struts framework.
• Experience Front end part of the application using Angular.JS, Ext.JS, Backbone.JS, jQuery, Node.JS, Ajax, Bootstrap React JS Html5 and CSS.
• Strong working knowledge of Database Programming using and maintaining SQL, PL/SQL, Triggers and Stored Procedures, NoSQL databases MongoDB and Cassandra.
• Strong working experience on SQL Databases like MS SQL Server, Oracle.
• Implemented asynchronous task processing pipeline using RabbitMQ.
• Expertise in writing unit test cases with Mockito and JUNIT and performed integration testing.
• Worked on various testing frameworks for front end/user interface like Karma, Jasmine, Jest, Mocha, Chai etc.
• Experience in CI CD pipelines to integrate the Java code to align with DevOps using Docker.
• Worked with Spark for improving performance and optimization of the existing algorithms in Hadoop using Spark Context, Spark-SQL, Data Frames and Pair RDD.
• Designed and implemented AWS EC2 Server setup and deployment, build, maintenance, and configuration of various AWS resources like, EC2, S3, Lambda, ECS, EBS, Elastic Load Balancers, VPC, and IAM Security Groups that are utilized for different environments like dev, testing, Production.
• Delivered architecture designs and solutions for public, private and hybrid clouds covering the cloud architecture tiers and portfolios of cloud services IaaS, PaaS, SaaS.
• Hands-on experience using the version control tools like SVN and GIT and project management tools like JIRA, QC.
• Extensively used the repositories like Git and SVN.
• Good working knowledge of Ant, Jenkins, Maven, and AWS for project build/test/deployment, logging and JUnit for unit and integration testing.
• Hands on exposure to multiple Application Servers like BEA Web Logic Application Server, Apache Tomcat, WebSphere and JBoss.
• Hands on Experience in integration with JUnit, and Log4j frameworks.
• Knowledge of using Routed Protocols like FTP, SFTP, SSH, HTTP, HTTPS and Direct connect.
• Experience with browser testing, knowledge of cross-browser/cross-platform compatibility.
• Excellent working knowledge and thorough exposure on compatibility issues with different versions of browsers like Internet Explorer, Mozilla Firefox, Safari and Google Chrome.
• Proficient in Quality Control - includes ensuring defect-free releases, maintaining correct entries in Design Docs, UI specs, Test Cases, Traceability Matrix.
• Excellent skills in programming using a wide variety of languages and the ability to adapt to new latest technologies and work in a Multi-platform environment.

TECHNICAL SKILLS:

Languages: Java 1.5/1.6/1.7/1.8 , J2EE, UNIX Shell Scripting, Python 3.6.0, Scala 2.12.1, C, C++

Web Technologies: HTML/HTML5, DHTML, XML, CSS, Bootstrap, JSF, JavaScript, SERVLETS 3.1, JSP 3.0, JavaBeans 3.0, Java Servlets API 3.0, AJAX

Frameworks: Spring 4.3, Hibernate 4.3, Angular JS 1.0/1.5/2.0/4.0 , Struts 2.x/1.x, Log4J

Application/Web servers: Apache Tomcat 8, IBM WebSphere 8.x/9.x, Jetty, Jenkins 2.50, JBoss, Tomcat 5.0/6.0/7.0, Glassfish, Wild Fly

Relational Databases: Oracle 8i/9i/10g/11g, SQL server 2012/2014/2016 , MySQL 5.7, DB2 11.1

NoSQL Databases: MongoDB, Cassandra, Couch DB

Internet Technologies: HTML 5, JavaScript 1.8, XML 2.0, CSS 3 and CSS 4, JQuery 2.11, Angular JS 2.0, BackBone.JS 1.3.1, Polymer.JS, Node JS 6.0.

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

Cloud Environments: Azure, AWS, Netflix Eureka, Mesos, EC2, Simply Storage Service, Cloud Front, Relational Data Base, Virtual Private Cloud, Route 53, Cloud Watch, Cloud Trial, Identity and Access Management, Simple Notification Service, AWS EMR, AWS CLI.

Operating systems: Windows, MS-DOS, UNIX, Mac OS, Linux and Ubuntu

Testing Tools: Junit 4.12, Win Runner, Jenkins, Selenium WebDriver/Grid, JIRA 7.0., Bugzilla 4.4.12, Jasper Reports 6.0

Methodologies: Agile, waterfall, TDD (Test-Driven-Development), Scrum, SDLC

Developer IDE Platforms: Eclipse, Edit plus, Notepad ++, TEXT PAD, JBuilder, Net Beans 8.0.2, Intellij 2017.1, Spring Tool Suite (STS) 3.8.3, GITHUB 2.12.0

Build Tools: Ant 1.10, Maven 3.3.9, Gradle 3.4.1

Case Tools: Rational Rose, UML, OOAD, RUP

PROFESSIONAL EXPERIENCE:

Sr. Java Full Stack Developer

Confidential, Rensselaer, NY

Responsibilities:

• Addressing heavy traffic situation and migrating user-specific data off service instances and into a shared by using Microservices.
• All the functionalities are implemented using Spring IO / Spring Boot and Spring JDBC.
• Designed REST and SOAP services.
• Designed and developed the RESTful web services using the JAX-RS API to communicate over the network.
• Designed, developed, and tested HTML5, CSS3, Bootstrap, JavaScript, jQuery and React.JS that meets accessibility and web browser standards for website.
• Implemented Java EE components using Spring MVC, Spring IOC, Spring transactions and Spring security modules.
• Developed user interface by using the React JS, Flux for SPA development.
• Implemented React JS code to handle cross browser compatibility issues in Mozella, IE 7, 8, 9, Safari and FF.
• Used React-Router to turn application into Single Page Application.
• Worked in using React JS components, Forms, Events, Keys, Router, Animations and Flux concept.
• Worked on Swagger API and auto-generated documentation for all REST calls.
• Implemented persistence layer using Spring JDBC template to store the data in Oracle database.
• Involved in maintaining and updating the procedure for ETL process.
• Used Oracle as database and Involved in the development of PL/SQL backend implementation and using SQL created Select, Update and Delete statements.
• Involved in writing complex SQL queries using correlated subqueries, joins, and recursive queries, PL/SQL stored procedures.
• Changing the AWS infrastructure Elastic Beanstalk to Docker with Kubernetes.
• Moving existing monolithic architecture to microservices and migrating them to AWS cloud.
• Experienced in writing real-time processing and core jobs using Spark Streaming with Kafka as a data pipe-line system.
• Implemented Spring boot microservices to process the messages into the Kafka cluster setup.
• Developed Mockito and JUnit test cases to improve code coverage.
• Implemented unit tests for testing Angular components with frameworks using Karma and Jasmine.
• Created JSON request and validated the response using postman Interceptor and Swagger UI.
• Setup CI/CD pipeline process for the application using the Jenkins.
• Apache Maven tool has been used for the build and deployment of the application.
• Monitored the Error logs using Log4j and fixed the problems.
• Involved in understanding SDLC using Agile methodology.

Environment: Java 8.0, Spring 4, Hibernate 4.2, Spring batch, Spring Boot, JPA, JMS, ReactJS, HTML5, CSS3, Eclipse, Oracle 10g, Swagger UI, Log4j, JIRA, Pure XML, Web Services, Kafka, Microservices, REST UI.

Java Full Stack Developer

Confidential, Columbia, SC

Responsibilities:

• Understand and adopt Microservices architecture to gradually replace a core monolithic application to Microservices.
• Actively participated in the Analysis, Design, Development and Testing phases of various modules.
• Expertise in spring based microservices, and enabled discovery using Eureka Server.
• Designed and developed RESTful Web Services using Spring Boot.
• Developed server-side application to interact with database using Spring Boot and Hibernate.
• Developed RESTful Services with Java using JAX-RS, Jersey and Spring Boot. Coding for consuming the REST APIs, getting JSON response and parsing them to get the required formats.
• Expertise in various components in Spring, which includes Spring IOC, AOP, Spring JDBC, Spring MVC, Spring JPA, Spring Batch, Spring Security and Spring Boot.
• Implement the technical transformation for the front-end from Angular 5 to Angular7. Developed single page applications using Angular7 Routers.
• Performed form validations using reactive forms from the Angular7 framework.
• Created Angular7 Directives, Components, Pipes, Injectable across the whole system, such as to build the custom filter.
• Utilized the features of Angular7 to present effective web design.
• Developed various pages in the applications in front end technologies HTML5, CSS3-SASS, JSON, Angular 6.
• Extensively involved in upgrading the existing system from Angular 5 to Angular 7.
• Developed Single Page Applications (SPA) using Angular 7, TypeScript, HTML5, CSS3, and Bootstrap 3
• Used HTML5, CSS3, JavaScript, Angular7 and Bootstrap in front end.
• Worked with Angular7 Controllers, Directives, Services, Pipes, Guards, Angular Routing.
• Designed animated web pages by importing the @angular/animations which is the latest animation package in Angular7.
• Used Hibernate and Mark Logic, writing service methods and SQL queries, PL/SQL to interact with the Oracle DBMS.
• Managed Eureka Client, Eureka Server, Eureka Instance, Eureka Service through Spring Boot.
• Expertise in implementing Micro Services Architecture using Boot Application, Eureka Discovery Service, Eureka Client, REST, SOAP, JPA, Hibernate.
• Deploy the application on Amazon Web services (AWS).
• Use Amazon Cloud Watch to monitor AWS services & Amazon Cloud Watch logs to monitor the application.
• Co-ordinated with QA lead for development of test plan, Test management and defect management.
• Hands-on experience in using message brokers such as ActiveMQ and RabbitMQ.
• Developed and performed test cases using Jasmine and Karma for front end unit testing and used the Cucumber, Protractor and Http-server for the End 2 End testing.
• Integrating various Version control tools, build tools and deployment methodologies into Jenkins to create an end to end orchestration build cycles.
• Used Jenkins to execute the Maven project as well to build the version system tool
• Maintained and managed cloud & test environments and automation for QA, Product Management and Product Support
• Developed JUnit test cases for Persistence layer and Business layer to perform the unit level testing.
• Configured Log4j for adding the debugging information in the code base.
• Used SVN for version control.
• Involved in Agile stand up meetings throughout the project with team members on day to day basis for the update on project status using JIRA and HP ALM.

Environment : Java 8.0, Spring 4, Hibernate 4.2, Spring batch, Spring Boot, JPA, JavaScript, Angular7, HTML5, CSS3, Eclipse, Drools, JBPM, Oracle 11g, ILOG, log4j, Junit, TestNG, Selenium, Easy Mock, RabbitMQ, XML, Web Services, SOAP UI.

Sr Java Full Stack Developer

Confidential, Tampa, FL.

Responsibilities:

• Involved in various phases of Software Development Life Cycles (SDLC) like Design, Development and testing phases, and developed Use Case diagrams, Class diagrams, and Sequence diagrams
• Acquired process awareness for software development and deployment.
• Used Spring Boot, which is radically faster in building cloud Micro Services and develop Spring MVC, based application with very less configuration.
• Worked in Node.js based microservices.
• Designed and developed RESTful Web Services using Node.JS.
• Developed server-side application to interact with database using Node.JS.
• Developed RESTful Services with Java using Node.js. Coding for consuming the REST APIs, getting JSON response and parsing them to get the required formats.
• Developed powerful Single Page Application and dynamic responsive Web Application with Angular5.
• Experienced in Angular 5 Template basics, Template directives, Routing and navigation, Components, Services and Data Binding. Advise team on best practices for Angular 5 component driven architecture.
• Worked on creating, retrieving, updating, and deleting documents in MongoDB.
• Implemented modular approaches for backend on AWS's Elastic Beanstalk and implemented interfacing with MySQL/Aurora DB on AWS's RDS, allowing for scalability.
• Implemented Custom Exceptions depending on the API Responses.
• Implemented BDD through Cucumber.
• Created the Feature Files for Cucumber Automation.
• Developed Mockito and JUnit test cases to improve code coverage.
• Experience in writing unit tests using JUnit and Easy Mock.
• Tested the performance of our API using SoapUI, Postman, and JMeter.
• Used Jenkins server for code monitoring during code integration phase.
• Utilize EBS to store persistent data and mitigate failure by using snapshots.
• Used JIRA as the bug tracking system to track and maintain the history of bugs/issues on everyday basis.
• Worked in an Agile based development environment and participated in Retrospective, Scrum session for better understanding, communication among team members.

Environment : JDK 1.8, Hibernate, LINUX, Maven, RESTful Web Services, Jenkins, HTML5, CSS3, Angular 5, Bootstrap, JavaScript, jQuery, Ajax, Node.js, MongoDB, SoapUI, Postman, API Life Cycle, JUnit, JMeter, Git, JAX-RS, JIRA, Cucumber, Putty, Agile.

Java Full Stack Developer

Confidential, Rochester, MN.

Responsibilities:

• Used Spring framework MVC in the development of new modules based on requirements.
• Utilized various utilities like JSP, JSTL, JavaScript, HTML, & CSS, jQuery.
• Refactored existing project to make it more RESTful and thread safe.
• Involved in the creation of dynamic web pages with the use of JSP and HTML.
• Configured and set up Java Workspace which included setting up server and theme installation and configuration. Became familiar with using and navigating through Java Workspace (Eclipse).
• Debugged Java classes used to modify web pages such as Business Objects and Data Access Objects.
• Implemented JDBC to perform the database calls from the Java layer.
• Used JDBC to persist Java Objects into the database.
• For XML marshalling and unmarshalling used JAXB. Worked with databases like Oracle.
• Tested many components of web application and documented my observations.
• Used Servlets as an interface between frontend and backend to handle HTTP requests and to send the response back to the front end.
• Participated in analysing the requirements and depicted them through use cases and scenarios.
• Participated in unit testing, integration testing and installation of the system.
• Contributed to the decision making of the software and hardware requirements and tool evaluations.
• Implemented logging for the whole application using Log4j.
• Involved in daily scrum meetings, worked on the sprint tasks in the Agile Scrum development.

Environment : Core Java, J2EE, HTML, CSS, JSP, JDBC, JSP, JavaScript, jQuery, XML, JSON, Servlets, Spring Framework, PL/SQL, Hibernate, Oracle, JAXB, RESTful, Log4j.

Java Developer

Confidential

Responsibilities:

• Designed and Developed the application using the MVC architecture.
• Developed the presentation layer using Struts Framework, JSP, Servlets, JavaScript, jQuery, and AJAX.
• Designed and developed web pages HTML, JSP, Portlets, AJAX, JSTL, JavaScript, Angular JS, bootstrap, jQuery, and CSS.
• Used MVC, Value Objects, Service Locator, and Session Façade Design Patterns.
• Developed stored procedures, triggers and used PL/SQL on Oracle database.
• Developed the Action classes for handling the requests from the JSP pages.
• Implemented and designed user interface for web-based customer application.
• Interacted with Business Analyst and Business owner to give up the best designing features for the product users.
• Developed Custom Tags using JSTL.
• Developed Java Bean components to communicate with Data Base.
• Developed TDD using Junit, Mockito.
• Developed Maven scripts to build and deploy the application into WebLogic Application Server and ran Perl shell scripts and implemented auto deployment process.

Environment : Core Java, JSP, Servlets, JDBC, jQuery, JSTL, Angular JS, Bootstrap, CSS, AJAX, Splunk, Struts, MVC, JUnit, ESB MULE, SOAP UI, Spring Tool Suite, WebLogic, Maven, SVN.