Vinay Kumar Email & Phone Number

United States

Boston, Massachusetts, United States

• Led a comprehensive analysis of the existing system, identifying gaps and proposing a more efficient flow for report creation and posting, simplifying code logic for stability.• Successfully designed and implemented reactive Java applications to leveraging frameworks like Spring Web Flux or Akka to build highly responsive and scalable systems.• Built RESTful web APIs from scratch using Swagger, deploying them on serverless AWS instances.• Utilized Java 8 features, such as Lambda expressions and Stream API, for optimized data operations.• Hosted and utilized RESTful Web services with JAX-RS API and Spring Boot.• Integrated OAuth for secure access to cloud storage services like Box, OneDrive, Google Drive, and Dropbox.• Utilized Docker to containerize Spring REST services on AWS EC2 container service and Lambda for AWS applications.• Effectively managed PostgreSQL databases across different environments, handling backup, recovery, and upgrades.• Deployed, scaled, and configured various Microservices in PCF.• Conducted Load JMeter scenarios for stress testing, scalability testing, failover testing, and load testing.• Utilize Groovy's dynamic and expressive nature to rapidly prototype and develop custom solutions for the client's specific needs, ensuring flexibility and agility in addressing changing requirements.• Applying JDK 17's improved security features and updates to ensure a robust and secure Java application, protecting sensitive data and preventing potential vulnerabilities.• Leveraged Scala to build high-performance, concurrent, and fault-tolerant components, enhancing scalability.• Conducted load testing scenarios with JMeter to evaluate performance, scalability, and resilience.• Utilized Git source control, specifically Bitbucket, for version tracking and collaboration during application development.

● Participates in the Analysis, Design, Development and Testing phases of the Software Development Life Cycle (SDLC)● Developed business components using Java 8 concepts such as lambda, date, functional interface and classes such as inheritance, polymorphism, collection, serialization and multi-threading.● Developed web applications using Java and J2EE technologies, including the Struts 1.3 framework for creating web applications.● Developed UI using HTML5, CSS3, JavaScript, TypeScript, Node JS, Angular 4, Prime NG, AJAX and JSON.● Developed Restful Web Services and using Spring MVC Framework● Used Spring MVC components to implement the business layer and Spring Boot for Microservices● Used spring framework and J2EE components, Utilized Spring Boot, IOC and DAO modules● Developed controller classes, backend process, complex services and database interactions● development and maintenance of secure and robust REST based middleware component using Spring MVC framework to interact with front end components, Hibernate/JPA to provide interaction with database and SOAP services to interact with backend middleware component.● Participates in building cloud Micro services and implements back-end using Spring Boot● Using Maven to build application and deploy on the server.● Used JUnit to debug the application● development and maintenance of secure and robust REST based middleware component using Spring MVC framework to interact with front end components, Hibernate/JPA to provide interaction with database and SOAP services to interact with backend middleware component.● Used Jenkins as an integration tool and improved the scalability of applications across platforms● Good experience in Unix to use basic commands and also shell scripts for creating own commands.● Followed agile methodology and participated in daily SCRUM meetings● Participates in technical mentoring, production system support and solution customization

● Maintained high quality REST services and implemented REST web services using Spring MVC and Jersey requirements analysis.● Design and develop the user interface using Struts View components, JSP, JSF, HTML, Bootstrap, CSS and JavaScript, AJAX, JSON.● Use the Apigee Gateway to manage authentication and authorization of microservices before requests hit the API.● Participate in Junit tests, write Java Spring Boot tests each module, write Ant scripts Automate the build and deployment process via SVN, GIT and dependencies via Maven J2EE and version control.● Design and develop AngularJS functionality for storage managers and systems involving the development of business components (EJB).● Developed SQL queries, stored procedures, and functions to embed business logic in SOAP using JDBC to access databases and obtain other relevant information from automatically generated files messaging to peers.● Responsible for REST API as per user requirement, use WebLogic Server to write EJB including Session Bean for database access and deploy it to Web Logic Application Server.● Developing Hibernate objects for data fetching for batch and front-end processing works in the Struts Action class using the Struts Controller component.● Use UML to develop use case diagrams, class diagrams and sequence diagrams in Log4J, save messages in flat files, databases, and emails.● Develop distributed modules using various design patterns such as Model View Controller, Data Access Objects, Business Delegate, Session Facade, Service Locator and Singleton● Participate in server-side programming of distributed components to implement client-server communication between them.

• Actively involved in the analysis, design, implementation and deployment of the application.• Involved in the development of the application based on backend Spring MVC architecture.• Responsible for implementing the application using Spring IOC, Spring MVC, Spring Batch, Spring Boot and handling the access-control features using Spring Security which is integrated with Micro services into the existing system architecture.• Developed a robust web-based application on Spring Boot frame structure using Java/J2EE technology.• Responsible for creating and maintaining architecture for Restful API using Spring Boot.• Used Dependency Injection on feature of build and release Spring Boot framework and O/R mapping tool Hibernate for rapid development and ease of maintenance. • Implemented DAO layer using different hibernate techniques like strategies, Inheritance, annotations and criteria interfaces.• Developed web pages using HTML5, JavaScript, jQuery and Angular.JS and customized the web features by CSS3 and Bootstrap.• Used Java Mail Sender (JMS) for sending detailed notifications depending upon the success and failure once the backend process is complete and for mailing administrator for any system related problem.• Developed session EJB and message driven bean (MDB) to process JMS XML messages.• Used Log4J to capture the logs that include critical business-related information.• Developed test cases and performed unit testing using JUNIT Test case.• Involved in consuming, producing SOAP based web services using JAX-WS.• Written SQL queries PL SQL Stored procedures, functions, triggers, cursors, sequences, and indexes, which are going to be invoked by Batch processes.• Worked on Agile, SCRUM development methodology and built the application with Test Driven Development (TDD). • Interact with other developers and end users to design and implement new features throughout the framework.