PROFESSIONAL SUMMARY:

• Overall 8+ years of experience in developing Web based, SOA based and client/server applications in multi - platform environments with Java/J2EE/ Full Stack technologies.
• Extensive experience and actively involved in Requirement gathering, Analysis, Design, Reviews, Coding, Code Reviews, Unit and Integration Testing.
• Implemented the service projects on Agile Methodology and involved in running the Scrum meetings.
• Developed part of code using JAVA 8 features like Lambda Expressions, Method References, Future Interface and Method Reflection.
• Extensive experience in working with Collections, Exception Handling and Multithreading.
• Expertise in client scripting language and server scripting languages like HTML5, CSS3, JavaScript, JQuery, Angular2/4, JSP, NodeJS.
• Experienced with AngularJS directives ng-app, ng-init, ng-model for initialization of AngularJS application data, implemented AngularJS Expressions, Directives, Controllers, filters and created Angular JS service layer.
• Hands on experience in Analysis, Design and Development of J2EE Business applications, Web-based and n-tier applications using the following core technologies - Java, Servlets, JSP, JSTL, and XML.
• Experience in Spring Framework such as Spring IOC, Spring Resources, Spring JDBC, Spring MVC, Spring Security, Spring Boot, JSF, Hibernate, Jasper reports.
• Good Experience using Object Relational Mapping (ORM) tool like Hibernate and JPA.
• Experience in development, deployment and troubleshooting Web based and enterprise based applications on Windows, UNIX and Linux platforms.
• Experience in developing web-services using REST, SOAP, WSDL and Apache UDDI, JAX- RPC, JAX-RS, JAX-WS, JAX-B.
• Designed, configured and managed public/private cloud infrastructures using Amazon Web Services (AWS), which includes VPC, EC2, S3, Cloud Front and Elastic Beanstalk.
• Experience in writing the SQL, PL/SQL queries and Stored Procedures.
• Experience in designing transaction processing systems deployed on various application servers including Tomcat, Web Sphere, Web logic, JBoss.
• Good Experience on Quality Control, JIRA, Tracking the tickets like accepting the tickets/defects, Reviewing Code and closing the tickets etc.
• Used Git and SVN for Source code version control.
• Experience with various IDEs like Eclipse, IntelliJ and Spring Tool Suite.
• Excellent Experience in Code Refactoring.
• Experience in Micro Services and Spring Boot application development.
• Expertise in implementing client-server business applications using Micro services.
• Actively involved in the DevOps streamlining process through Jenkins CI and CD Release Automation.
• Involved in writing Log4j and JUnit testing
• Decent experience in building tools like ANT, Maven.
• Excellent Client interaction skills and proven experience in working with individual as well as team.
• Excellent analytical and critical thinking, creative problem solving, quick learning, interpersonal and client interfacing skills.

TECHNICAL SKILLS:

Programming Language: Java7/8, C, Python

Platforms: Windows, Red Hat Linux, Unix

Version Control: SVN,GIT,CVS

Web development Technologies: HTML, CSS, JavaScript, JSON, Angular2/4, Node.JS

Databases: Oracle, MySQL, DB2,Mango DB, Cassandra

ORM Frameworks: Hibernate

J2EE MVC Frameworks: JSF, Spring MVC

Application Servers: TomCat, WebSphere, WebLogic, JBoss, GlassFish

Web Services: SOAP/REST WSDL, JAXB, JAX-RS, JAX-WS, REST Microservices

IDEs: Eclipse, NetBeans, IntelliJ, Spring Tool Suite.

Design Patterns: Session Fa ade, Business Delegate, Front Controller, Service Locator, Singleton, Proxy, Adaptor, Observer, DTO, DAO, MVC, Iterator, Factory

Build Tools: ANT, Maven, Jenkins

Methodologies: Agile, Scrum, Test Driven Development(TDD)

Messaging Technologies: JMS, Rabbit MQ.

Cloud Deployment: AWS, PCF.

Loggers: Log4J

PROFESSIONAL EXPERIENCE:

Confidential, Seattle, WA

Full Stack Java Developer

Responsibilities:

• Designed and developed User Interface web pages using with HTML5, DHTML, XHTML, CSS3, AJAX, JSP, JSTL and JQuery based on the W3C standards and Web 2.0.
• Developed dynamic web pages using JSP, HTML, CSS and presentation layer using JavaScript, Angular 4.
• Implemented routing logic and navigation from screen to screen and also implemented functionality on the client side in Angular2/4.
• Participated in the elaboration of JEE/ SOA Architecture Solutions for Business Applications.
• Used Java8 feature Lambda expressions to reduce the code complexity and more readable.
• Involved in Designing Use Case Diagrams, Class Diagrams and Sequence diagrams using Rational Rose.
• Used Spring DAO Module along with Struts Framework to deal with Database.
• Spring MVC Framework IOC (Inversion of Control) design pattern is used to have relationships between application components. It is also used to separate the application configuration and dependency specification from the actual application code.
• Extensively XML used to code configuration files in Spring Framework.
• Wrote Restful web services to communicate with MongoDB. Performed CRUD operations on MongoDB using restful web services. Configured and Integrated JSF, spring and Hibernate frameworks.
• Used Collection Framework and Multithreading for performing cache Operation.
• Developed the Business layer using Spring Boot and JTA. .
• Achieved role control functionality mainly by retrieving JSON data from AJAX and combining the retrieved data with jQuery to manipulate nodes in DOM tree.
• Experience in Paas (Pivotal Cloud Foundry) and designing Mongo DB multi-shared cluster and monitoring with MMS.
• Used Python modules such as requests, urllib, urllib2 for web crawling in Python.
• Used other packages such as Beautiful soup for data parsing in Python.
• Involved in developing Micro Services business components using Spring Boot.
• Consumed REST based Micro Services with Rest template based on RESTful APIs.
• Developed REST API for test server for Express Router middleware based API's with Mongo DB integration.
• Built centralized logging to enable better debugging using Elastic Search, Logstash and Kibana.
• Managed different monitoring dashboards using Kibana that helped Site Reliability Engineering to monitor the uptime of services.
• Involved in utilizing Apache Camel to setup micro-services using REST APIs and build both pre-determined and dynamic routes.
• MQ was used to provide a single unifying transport that reduces cost and maintenance efforts, including support for HTTP, REST and JMS
• Improved infrastructure design and approaches of different projects in the cloud platform Amazon Web Services ( AWS ) by configuring the Security Groups, Elastic IP's and storage on S3 Buckets .
• Customized Amazon Machine Images ( AMIs ) & deployed these customized images based on requirements.
• Responsible for deployment of micro services via AWS Beanstalk and Lambda
• Built NoSQL schemas and maintained sessions by MongoDB.
• Worked on MongoDB database concepts such as locking, transactions, indexes, replication, schema design.
• Used Apache Nifi for ingestion of data from the IBM MQ's (Messages Queue).
• Experienced in designing and automation of web services testing using Ready API (SOAP and REST).
• Involved in UI automation for node.js/angular js/Ext JS -based web applications using Selenium Web Driver, developed in node.js/JavaScript. Developed session, entity beans and message driven beans.
• Developed Maven scripts and developed builds using Maven and continuous integration servers like Jenkins.
• Used XML Http Request Object to provide asynchronous communication as part of AJAX implementation.

Environment: Core Java, J2EE, Servlets, JSP,JSTL, Spring Framework, Micro-Services, EJB, JMS, XML, XSLT, JDBC, AJAX, Apache Nifi, Apche Camel, Oracle 12C, SQL, IBM MQ,PCF, ELK RabbitMQ, Kibana, HTML, CSS, JavaScript, Angular2/4,Python, STS, Rational Rose, GIT, JUnit, Maven .

Confidential, Chicago, IL

Full Stack Java Developer

Responsibilities:

• Worked on Java8 feature Method references to enhance the readability of the code with methods, repeating annotations to apply the same annotations repeatedly and also Method parameter reflections used to retrieve the names of formal parameter.
• Implemented Lambda, Stream API and Collection API of Java8 .
• Used Spring Framework AOP Module to implement logging in the application to know the application status.
• Created SOA systems architecture and high-level design for scalable and high-performance enterprise applications.
• Developed front end web pages using JSP, JSTL, JSON, CSS, JavaScript, Angular2.
• Used Angular2 directives to reduce the usage of redundant code and to create pie-charts, bar-graphs and also familiar in using data-binding and dependency-injection concepts in Angular2.
• Application developed using Spring Framework and J2EE technologies such as, Servlets, JSP, and Struts.
• Worked on Backbone views with declarative event handling which connects it all to the existing API over a RESTful, JSON interface.
• Deployed flow of Execution in the Servlets Environment using JSF and defined Navigation Rules for handling page Navigations using Spring WebFlow.
• Implemented Asynchronous messaging between System Integration components using Spring JMS Template.
• Used Callable objects for implementing multithreading for parallel execution of independent events.
• Implemented different design patterns such as singleton, business factory and J2EE design patterns such as Business delegate, session façade and DAO design patterns.
• Designed and implemented Java Classes to use JAXP parser to create Java objects so as to be able to modify the data received in the response.
• Developed the HTTP based Web Service Client which calls up the existing web service to get the application related data which comes in XML format.
• Used Hibernate - Object Relational Mapping(ORM) for the backend data persistency.
• Created a Spring container file for configuring Hibernate and to perform Dependency injection among all bean class involved in business logic operation.
• Responsible for the Amazon EC2 cloud infrastructure within each user account VPC
• Launched Auto Scaling in combination with ELB to automatically scale the EC2 instances up and down according to the web traffic and also in response to health check of EC2 instances.
• Good knowledge on working with Amazon Lambda.
• Created RAML for rest services that helps Apigee team to connect API to outside world.
• Responsible for fetching the records for SOAP and Restful requests from Oracle DB.
• Hands on experience in writing SQL queries, Function, Triggers and Stored Procedures.
• Worked with Apache Tomcat as the Webserver and WebLogic as the Application server.
• Wrote services to store and retrieve user data from the MongoDB for the application on devices.
• We used Find Bugs tool to check the quality of code.
• Executed some web service test scenarios by using SOAP UI.

Environment: UML, OOAD, Agile/SCRUM, SOA Patterns, Oracle DB, MongoDB, MS Visio, Java 7, JSP, JavaScript, jQuery, JSF, Angular, JSON, JDBC, Struts, XML, Apache Tomcat, WebLogic, EJB, JMS, Oracle 11g, Linux, Maven, XML, AWS VPC,EC2,S3 Web Services (SOAP, Rest full), Soap UI, Jenkins.

Confidential, Lynn, MA

Senior Java developer

Responsibilities:

• Used Spring 4.0 Framework component Spring MVC to provide Model and View, and URL based responses to different HTTP requests.
• Implemented method to obtain bean references and cross-cutting concerns using Dependency Injection (DI) / Inversion of Control ( IOC ), and Aspect Oriented Programming ( AOP ).
• Used Hibernate 3.0 and DAO pattern to store the persistence data into Oracle database and developed queries and stored procedures using MySQL , HQL and NoSQL and used Tomcat as Web Container.
• Developed RESTful web services API that support JSON and XML for exchanging the resource between different clients or systems based on the type of request and information to supply.
• Implemented logging and transaction manager using Spring AOP concept.
• Used Rabbit MQ open source message broker software that implements the Advanced Message Queuing Protocol (AMQP).
• Implemented Design Patterns such as Singleton , Factory , Proxy and MVC .
• Used the Java Mail library to send email and used JMS to send message to customer to avoid passing the payment due time.
• Tested the application functionality with Junit Test Cases.
• Developed logging module using Log4J to create log files to debug as well as trace application.
• Wrote some SQL queries such as Insert, Update, Delete, Alter and Joins.
• Deployed JBoss application server in local and integration test environments.
• Used Data Structures like HashMap , Trees and various sorting algorithm for customer data lookup.
• Created GitHub repositories and worked in branches and also worked with Git bash terminals.
• Used Jenkins as Continuous Integration (CI) tool and wrote reports of bug tracking in JIRA .
• Used IntelliJ as IDE to develop application code.
• Followed Agile methodology and participated in Sprints during development

Environment: Java 7/8, Spring IOC, Spring AOP, Spring MVC, Hibernate, JSP, Servlets, Log4j,SQL, REST Web Services, XML, Junit, JIRA, MySQL, JBoss, Rabbit MQ, IntelliJ IDE, Tomcat 8, Maven, GIT.

Confidential, New York, NY

Full Stack Java Developer

Responsibilities:

• Worked Agile Methodology (Scrum) to meet customer expectation, timelines with quality deliverables.
• Responsible for creating efficient design and developing user interaction screens using HTML, CSS, JavaScript, JQuery, Ajax for service calls on pages to interact with the server.
• Implemented different validation control on the web-pages using Angular and developing a cross-platform JavaScript based solution using Angular JS.
• Used Angular to build web components such as signup form and rule form.
• Involved in research, implementation and review of JQuery and JavaScript functions to use plugins for representing data in graphs.
• Used Python modules such as xlrd, lxml and csv to compare two files and log the differences.
• Implemented Schema validation using Python module JSON schema to validate data in prior to API call to server.
• Worked on designing specific programs efficiently through knowledge of multithreading using the API with the goal of increasing performance on a wide variety of applications.
• Developed the persistence layer using Hibernate Framework, created the POJO objects and mapped using Hibernate annotations.
• Used the Spring IOC feature to get Hibernate session factory and resolve other bean dependencies also used Spring Framework AOP features and JDBC module features to persist the data to the database for few applications.
• Used Spring Security to provide authentication, authorization and access-control features for Application.
• Connected to Data sources and performed operations using Spring Data Framework features like Spring JDBC and Spring ORM.
• Analyze business requirements and develop various business delegates to integrate with Middleware services like JAX-WS using SOAP and REST.
• Used Cassandra for database and Redis for cache, for storing and fetching the data.
• Developed Data Services using XML messages that use REST web services, Created REST envelope.
• Created customized AMIs based on already existing AWS EC2 instances by using create image functionality, hence using this snapshot for disaster recovery
• Re-design and implement CI build system using Jenkins.
• Developed ANT scripts to build and deploy the application in the WebSphere Application Server.
• Focused on Test Driven Development thereby creating detailed JUnit tests for every single piece of functionality before actually writing the functionality.
• Used JIRA tool for Issue/bug tracking, monitoring of work assignment in the system
• Log4J was used to monitor the error logs and used GIT as version control tool.

Environment: Java, HTML5, CSS3, Java Script, JQuery, AngularJS, NodeJS, Python, Spring MVC, Spring Boot, Spring Security, Spring ORM, Hibernate, SOAP, RESTful, AWS EC2, Jenkins, JSP, XSLT, XML, SQL, Cassandra, Apache Tomcat, WebSphere, Log4j, JUnit, JIRA, GIT,ANT, Agile

Confidential

Java / J2EE Developer

Responsibilities:

• Developed Business Components in Java/JEE and Involved in various phases of Software Development Life Cycle (SDLC) on windows and Linux Platform.
• The entire application was developed in J2EE using an MVC based architecture.
• Designed project related documents using MS Visio which includes Use case, Class and Sequence diagrams.
• Implemented modules using Core Java APIs, Java collection, multi-threading, and object-oriented design principles.
• Developed presentation layer code, using JSP, HTML, AJAX and JQuery.
• Helped UI to integrate the JavaBeans data using JSTL, spring tags.
• Developed JSPs strictly confining to using JSTL and not using any JSP element consisting of JavaScript.
• Single page architecture by using AngularJS for server side web Applications, Real time communication.
• Involved in the Node.js EXPRESS Server combined with Socket.io to build MVC framework from front-end side Angular1 to back-end Oracle, in order to provide broadcast service as well as chatting service.
• Wrote some basic pojo classes using Spring Core Modules.
• Developed the Persistence layer DAO using HIBERNATE.
• Implemented RESTful web services using JSON, XML.
• Involved in Migrating the JDBC Code into Hibernate and implemented various features using Collection APIs.
• Developed the project using industry standard design patterns like Singleton, Business Delegate Factory Pattern for better maintenance of code and re-usability.
• Experienced in SQL, PL/SQL Stored procedures, Functions, triggers to interact with Oracle11g.

Environment: Java, J2EE, HTML, CSS, AJAX, JQuery, JavaScript, JSP, JSTL, Spring Core, Hibernate, RESTFUL, SOAP, XSD, XML, Angular1, UML, JUNIT, Web Sphere, MS Visio, Oracle DB, JDBC, SQl, PL/SQL, JSON, UNIX.

Confidential

Java Developer

Responsibilities:

• Involved in various phases of Software Development Life Cycle (SDLC) as design development and unit testing.
• Developed and deployed UI layer logics of sites using JSP, XML, JavaScript, HTML/DHTML, and Ajax.
• Developed proto-type test screens in HTML and JavaScript And Used JavaScript's for validating client side data
• Involved in developing JSP for client data presentation and, data validation on the client side with in the forms.
• Developed Intranet Web Application using J2EE architecture, using JSP to design the user interfaces, and JSP tag libraries to define custom tags and JDBC for database connectivity.
• Agile Scrum Methodology been followed for the development process.
• Designed different design specifications for application development that includes front-end, back-end using design patterns.
• Developed the application by using the Spring MVC framework.
• Collection framework used to transfer objects between the different layers of the application.
• Developed data mapping to create a communication bridge between various application interfaces using XML, and XSL.
• Spring IOC being used to inject the parameter values for the Dynamic parameters.
• Used Web Services - WSDL and SOAP for getting Loan information from third party and used SAX and DOM XML parsers for data retrieval.
• Evaluated and worked with EJB's Container Managed Persistent strategy.
• Developed JUnit testing framework for Unit level testing.
• Actively involved in code review and bug fixing for improving the performance.
• Worked on multiple environments such as Windows and UNIX.
• Developed the EJB-Session Bean that acts as Facade, will be able to access the business entities through their local home interfaces.
• Created connection through JDBC and used JDBC statements to call stored procedures.
• Documented application for its functionality and its enhanced features.

Environment: Spring MVC, J2EE, Java, JDBC, Servlets, JSP, XML, Design Patterns, CSS, HTML, JavaScript 1.2, JUnit, Apache Tomcat, Eclipse, My SQL Server 2008.