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Name: Mallikarjuna. R Java Full Stack DeveloperEmail: EMAIL AVAILABLELinkedIn: http://LINKEDIN LINK AVAILABLEContact#: PHONE NUMBER AVAILABLEProfessional Summary:Full Stack Developer with over 5+ year of professional experience in development and deployment of various Object oriented and web-based Enterprise Applications using Java/J2EE technologies and working on the complete Software Development Life Cycle (SDLC).Proficient in end-to-end web development, demonstrating expertise in both front-end and back-end technologies to create fully functional websites.Experience in Spring Frameworks, including Spring IOC, Spring DAO, Spring ORM, Spring Resources, Spring JDBC, and Spring Wicket, with hands-on experience in Micro-Services architecture.Experience in designing and implementation of multi-tier applications using web-based technologies like Spring MVC and Spring Boot.Experience in several technologies like JDBC, JMS, Servlets, Struts, JSP, Java Beans, MVC, Spring, CSS, JavaScript, XML, JSON, HTML5, Maven.Experience in UI/UX Technologies like JSP, HTML5, CSS, SASS Bootstrap, jQuery, Angular, Angular JS, JavaScript, TypeScript, React.Experience in using IDE like Eclipse, Spring Tool Suite, and version control tools like SVN, Git.Experience with Java 17 features, including the Stream API, for efficient bulk data operations on collections, employing both sequential streams and parallel streams.Experience in Java 11/8 features including Lambda expressions, Method references, Functional interfaces, Stream API, Default methods, Optional class, Collectors class, Parallel array sorting etc.Experience on Hibernate. Used Hibernate Connection Pooling, HQL, Collections, Hibernate Caching, Hibernate Transactions, Optimistic Locking.Experience in designing dynamic web applications using HTML5, CSS3, JavaScript, jQuery, AJAX, JSON with responsive web applications using Bootstrap.Experience in Angular.JS framework and its ability to create simple and scalable code for SPA.Experience in working on Node.JS Fundamentals including Modules, Callbacks, Events, Streams, and Error Handling by making use of its Core Features like Event-Driven, Single Threaded model and Nonblocking I/ O model.Experience in JSON and XML technologies such as XSL, XSLT, XPath, parsers like SAX, DOM and JAXB.Experience in Java messaging Service (JMS), and messaging technologies such as Message Driver Bean (MDB).Experience in using and implementing design patterns such as Model-View-Control (MVC), Data Access Object (DAO), Service Locator Factory, Singleton & Business Delegate.Experience in Core Java concepts like Exception handling, Multi-threading, Synchronization, and Serialization, IO, Collections framework, Java Beans, Executor Services and Thread pools.Experience in creating Docker images, Containers, push/pull and integrating with Spring Boot for running applications securely on container platform by flexible integrating existing processes with log4J for logging.Experience in application/web servers like IBM Web Sphere, Web Logic Application Servers, JBoss and Tomcat Web Servers.Setting up CI/CD pipelines for automated building, testing, and deployment of Spring Boot Applications.Integrated automated testing frameworks (e.g., JUnit, Selenium) into CI/CD pipelines to validate code changes and prevent regressions before deployment.Experienced with application server technologies like JBoss, and Apache TomcatProficient in using the AWS SDK for Java to interact with AWS services programmatically.Deploying Java Applications on AmazonEC2 instances and utilizing auto scaling for dynamic resource adjustment.Leveraging AWS Elastic Beanstalk for easy deployment and management of Java applications.Proven ability to design and implement event-driven microservices architectures using Spring Cloud Stream.Experience in using AWS (Amazon Web Services) services like EC2, VPC, Cloud Watch, Cloud Front, Cloud Formation, IAM, S3, Amazon RDS, Elastic Cache, SNS, SQS.Deployed and managed applications on Google Cloud Platform (GCP), leveraging services such as Compute Engine, App Engine, Kubernetes Engine, and Cloud FunctionsConfigured and managed virtual machines and containerized applications using Google Compute Engine and Google Kubernetes Engine, optimizing performance and scalability.Designed and implemented scalable databases and data warehouses on Google Cloud Platform, utilizing services like Cloud SQL, Cloud Spanner, and Big QueryExperience in using Jenkins for continuous integration and sonar jobs for java code quality.Designed, implemented, and customized AEM solutions to meet business requirements, leveraging AEM components, templates, workflows, and content fragments to create engaging digital experiences.Containerized applications using Docker and deployed them on Google Cloud Run, leveraging Kubernetes-based orchestration to manage and scale container instances seamlessly.Monitored and debugged Cloud Run applications using Google Cloud Monitoring and Logging, gaining insights into application performance, errors, and resource utilization.Developed Python scripts and automation solutions to automate repetitive tasks, such as data processing, file manipulation, and system administration, resulting in significant time savings and increased productivity.Experience on SOA and Web Services like SOAP (JAX-WS) & REST (JAX-RS) using different frameworks like Apache Axis2, Spring-WS, Apache CXF and Jersey.Experienced in writing SQL, PL/SQL, and Stored Procedures for accessing and managing databases queries with Oracle, MySQL, NoSQL, MongoDB, SQL Server, and DB2.Team player, excellent interpersonal skills and effective in working independently and collaboratively in team.Proficient with Agile Software Development principles.Technical Skills:Programming LanguageJava 17/11/8, PL/SQL, SQL, PythonAPIsJDBC, JMS, Rabbit MQ, Apache Kafka, JPA, JSF, EJB, SOAPDesign PatternsMVC Architecture, SingletonWeb FrameworksSpring, Hibernate, Spring BootWeb TechnologiesHTML5, XML, DOM, JSON, AJAX, CSS3, JavaScript, AJAX, Angular 14/12/10, Angular.js, Node.js, ReactDatabaseOracle, SQL, MySQL, MongoDB, PostgreSQLDesign & GUI/ToolsEclipse, IBM RAD, Visual Studio Code, Log4jBuild & Test toolsMaven, Ant, Jenkins, Kubernetes, JIRA, QC, Rally, Junit, MockitoAmazon Web ServicesEC2, S3, Cloud Watch, Amazon S3, Amazon RDSWeb/App ServerIBM Web Sphere, Apache Tomcat, JBossOperating SystemsWindows, Linux, UnixProfessional Experience:Client: American Airlines, Arlington, Texas May 2023  Till DateRole: Java Full Stack DeveloperResponsibilities:Involved in various phases of Software Development Life Cycle (SDLC), including requirement gathering, modeling, analysis, architecture design, prototyping, developing, and testing.Used Java 17 lambda expressions along with streams like Parallel Streams for performing chain operations such as filter, map, and collect on a collection.Developed application modules using Core Java, object-oriented concepts, data structures, algorithms, multithreading, collections, and Java 17.Designed, developed, implemented application based on REST services using Spring Boot, Spring Data, Spring JPA, Spring Security.Developed web application using Spring MVC framework.Utilized Spring MVC framework to implement design patterns like IOC (Dependency Injection), Spring DAO (Data access objects), Data Transfer objects, Business objects, ORM Mappings.Designed and developed Micro-services business components using Spring Boot.Responsible for creating Batch processes using different modules of Spring Boot like Spring Boot Batch, Spring data etc.Responsible for creating REST API using Spring Boot.Developed server-side application to interact with database using Spring Boot and Hibernate.Used Eclipse IDE for designing, coding, and developing applications.Designed and developed very complex and large web pages using HTML5, CSS3, jQuery and Bootstrap for Dynamic web pages.Developed powerful Single Page Application and dynamic responsive Web Application with Angular 14.Created Res-useable components, Custom Modules, Custom Directives, Pipes and Services in Angular 14.Designed various routing mechanisms and implemented http functionality in Angular.JS to retrieve data from web servers.Implemented robust error handling, logging, and exception management mechanisms in Python scripts to ensure reliability, resilience, and fault tolerance in automated processesWrote automated test scripts in Python to validate software functionality, verify system behavior, and perform end-to-end testing across different layers and components of the application stack.Automated manual and repetitive tasks across different functional areas, departments, and systems using scripting languages (e.g., Python, PowerShell) and workflow automation platforms (e.g., Zapier, Microsoft Power Automate).Built REST by building Node.JS in the back end to handle requests sent from the jQuery Ajax calls.Used Node.JS for building web applications with client-server architecture where both can initiate communication in two-way connections and allows them to exchange the data.Involved in Integration of all the modules and deploying them on the Application server and used JMS.Experience with various JMS providers, such as Apache ActiveMQ, IBM MQ, and RabbitMQ.Involved in deploying systems on Amazon Web Services (AWS) Infrastructure services EC2. And utilized most of the AWS services like S3 as a data store for storing the files that falls into the bucket, IAM roles, Elastic Bean Stalk, generated Lambda Functions to trigger an event that occurs in S3, Code Commit as a Version control service, AWS Cloud Watch.Deploying Java Applications on AmazonEC2 instances and utilizing auto scaling for dynamic resource adjustment.Used Docker for creating Docker images for launching containers on AWS EC2.Developed and containerized microservices and serverless applications using Docker and Kubernetes, leveraging Google Cloud Run for deployment and orchestration.Developed session EJB and message driven bean (MDB) to process JMS XML messages.Used Log4J for logging and tracing messages.Involved in developing JUNIT Test Cases to validate the type of data in the XML Files.Setup the continuous Integration (CI) process for the application using Jenkins.Setting up CI/CD pipelines for automated building, testing, and deployment of Spring Boot Applications.Implemented Service Oriented Architecture (SOA architecture) using Web Services (SOAP, REST).Proficiency in PostgreSQL, MongoDB database administration, installation, and configuration.Proficient in writing complex SQL queries to extract, transform, and load (ETL) data from relational databases, ensuring optimal performance and minimal resource consumption.Worked on MongoDB database concepts such as locking, transactions, indexes, Sharding and replication.Involved in Stored Procedures, User Defined functions, Views and implemented the Error Handling in the Stored Procedures and SQL objects and modified already existing stored procedures, triggers, views, indexes depending on the requirement.Documented Python scripts, automation workflows, and best practices to create technical documentation, runbooks, and knowledge base articles for internal teams and stakeholders.Followed AGILE Methodology and participated in SCRUM Meetings.Actively participated and provided feedback in a constructive and insightful manner during weekly Iterative review meetings to track the progress for each iterative cycle and figure out the issues.Environment: Java 17, Spring, Spring Boot, MVC Micro services, Hibernate, HTML5, CSS3, JavaScript, Angular 14, Angular.js, DOM, Eclipse, AJAX, jQuery, JSON, Node.JS, AWS, Docker, PostgreSQL, MongoDB, JMS, XML, EJB, Log4j, JUnit, Jenkins, SOAP.Client: Sentara Health, Norfolk, Virginia May 2022-April 2023Role: Java Full Stack DeveloperResponsibilities:Involved in Design, Development and Support phases of Software Development Life Cycle (SDLC).Used Java 11 features like Lambda expressions, Method references, Stream API, Parallel Streams, Producer, Consumer, Bi-Consumer etc. and implementation using core java concepts of Multithreading, Exception Handling, Collections and Concurrent APIs.Implemented Java 8 features like Lambda expressions, Streams, filters, pipelines, Optional Interfaces etc.Worked on Java 1.8 features such as Lambda expressions for making anonymous inline function calls by using Functional Interfaces which makes code readable and concise.Designed the N-Tier architecture for the application following Spring MVC pattern.Used Spring MVC as Web module, involved in design, development of new Action classes to interact with business logic and Used Hibernate as ORM to map Java classes to database tables.Used Micro Services architecture, designed and developed RESTFUL web services using Spring Boot framework.Used Spring Boot framework to create properties for various environments and for configuration.Deployed Spring Boot based micro services Docker container using Amazon EC2 container services and using AWS admin console.Used Eclipse IDE to develop an application.Implemented the business layer by using Hibernate with Spring DAO and developed mapping files and POJO java classes using ORM.Developed the front-end web page by using HTML5, CSS3 and JavaScript taking advantage of the frameworks jQuery, Angular and Bootstrap.Used Angular 12, HTML5, CSS3 web technologies for developing front-end websites. Implemented UI grid, tables and several widgets in Angular 12.Used Angular.JS as framework to create a Single Page Application (SPA) which can bind data to specific views and synchronize data with server.Used Node.JS as a proxy to interact with Rest services and interacting with Database.Created and configured JMS connection factories (Queue, Topic) on WebLogic server.Involved in setting up AWS services with EC2 instances, S3 bucket, took part in deploying application in AWS along with writing and retrieving files to and from AWS S3 bucket for UI to render data faster.Implemented build stage-to build the Micro services and push the Docker container image to the private Docker registry.Involved in developing business components using EJB Session Beans and persistence using EJB Entity Beans.Used Log4j API for logging in development, testing and production environments, configured to send email notifications.Performed code review and unit tested the application using JUnit framework.Worked with Jenkins in setting up CI/CD pipeline for dev environment and involved in setting up GIT web hooks.Developed both Restful and SOAP web services depending on the design need of the project.Worked on MongoDB concepts such as locking, transactions, indexes, sharding, replication, schema design.Written SQL Queries and PL/SQL stored procedures to satisfy various business requirements of the application.Used agile methodology for developing the application.Participated in meetings weekly status reports and also involved in web operations with clients for gathering requirement information.Environment: Java 11/8, Spring, Spring MVC, Spring Boot, Hibernate, HTML5, CSS3, JavaScript, Angular 12, Angular.JS, Node.JS, AJAX, JSON, REST, JMS, JSF, XML, Java Classes, AWS, Docker, EJB, Log4j, TDD, JUnit, Jenkins, SOAP, RESTful, MongoDB, MySQL, Agile and Windows.Client: JetBlue, Bengaluru, India Aug 2019 Jul 2021Role: Java Full Stack DeveloperResponsibilities:Responsible for reviewing business user requirements and participating in meeting the users with Business Analysts.Used Java 8 Method References feature to point to methods by their names and used functional Interfaces.Worked on Java 1.8 features such as Lambda expressions for making anonymous inline function calls by using Functional Interfaces which makes code readable and concise.Used Spring Framework for dependency injection, integration of Hibernate using Spring ORM support, development of RESTful web services to give JSON output.Developed Restful API in JAVA on Micro-services Architecture using Spring Boot.Implemented Micro Services architecture using Spring Boot for making applications smaller and independent.Used Spring Boot for developing micro services and used REST to retrieve data from client-side using Micro service architecture.Developed Cloud Compatible Micro Services using Spring Boot, java, and related web technologies.Designed, developed, and maintained the data layer using Hibernate and performed configuration of Spring Application Framework.Developed Data Access Object (DAO) persistence layer using Hibernate.Developed dynamic web pages using HTML5, CSS3, jQuery, Bootstrap, CSS3 (SASS) and AJAX.Developed code to exchange data between one component to other across different modules using Angular 10 framework.Used Angular.JS Framework for creating Routes, Filters, Directives, Factory, and Services and to bind HTML (views) to JavaScript objects (models).Worked with Node.JS framework including authoring complex directives, services, controllers and filters.Used Eclipse as the IDE and Web Logic as the application server.Extensively used XML documents with XSLT and CSS to translate the content into HTML to present to GUI.Used JMS (Java Messaging Service) for asynchronous communication between different modules.Worked on AWS Cloud platform and its features which include EC2, VPC, EBS, AMI, SNS, RDS, EBS, Cloud Watch, Cloud Trail, Cloud Formation AWS Config, Auto scaling, CloudFront, IAM and DynamoDB. Designed, configured, and deployed Amazon Web Services (AWS) for applications utilizing the AWS stack.Created Docker images from Docker file and handled multiple images by storing them in containers to deploy.To implement business logic created EJB - stateless session beans, configured ejb-jar.xml.Used Log4J for any logging purposes during the development of the application.Wrote JUnit test/Integration test cases for asserting functional quality.Involved in Continuous Integration and Continuous Deployment (CI/CD) using Jenkins.Worked in Service Oriented Architecture using Web Services- SOAP and REST.Worked with NoSQL database MongoDB and developed custom MongoDB applications specific to client needs and Developed PL-SQL store procedures to convert the data from Oracle to MongoDB.Used to write SQL queries, Triggers, Functions for Oracle database and developed some complex SQL queries.Worked in Agile environment with bi-weekly sprints and daily scrum meetings.Actively participated and provided feedback in a constructive and insightful manner during weekly Iterative review meetings to track the progress for each iterative cycle and figure out the issues.Environment: Java 8, spring, Spring Boot, MVC, Micro Services, Hibernate, HTML5, CSS3, JavaScript, Angular 10, Angular.js, Node.JS, JMS, XML, AWS, Docker, EJB, Log4j, JUnit, Jenkins, RESTful, SOAP, MongoDB, SQL, Agile and Windows.Client: ZobLik Technologies, Bengaluru, India Mar 2018 Jul 2019Role: Java DeveloperResponsibilities:Designed and implemented dynamic and interactive user interfaces using modern frontend technologies such as HTML, CSS, and JavaScript frameworks such as React.Expertise in implementing client-side routing to create a smooth, SPA (Single Page Application) experience for users.Contributed actively to open-source projects on GitHub by submitting pull requests, resolving issues, and reviewing code changes.Applied solid object-oriented design principles of Factory design pattern to create a modular and maintainable codebase.Utilized JIRA dashboards as communication tools to present project status, progress, and performance metrics to stakeholders, executives, and client teams.Modeled Big Table schemas and data structures to optimize for efficient read and write operations, considering data access patterns, indexing requirements, and storage capacity.Developing the REST web services API to consume and produce the JSON data.Developed a reusable and customizable widget using React, Redux, Redux-forms, HTML5, Axios, Web pack, jQuery, Promises, React-Route and Back end using Express and Node Express route, Express session.Used NPM for installing required node modules and other published Angular NPM modules.Integrated Apigee Edge with backend systems, databases, and third-party services using policies like HTTP/REST, SOAP, and JDBC, ensuring interoperability and data exchange.Configured Elasticsearch index lifecycle policies to manage data retention and storage costs efficiently, ensuring compliance with data retention policies.Environment: Java 1.8, JavaScript, Spring 3, Typescript, React, Jira, Git, Maven,, JBOSS Application Server, Log4, XML, MySQL, JSP, Hibernate, JPA.Education:Masters in computer science from University of Dayton.Bachelor of Engineering from Sai ram college of engineering.