Sammy . Email & Phone Number

Chicago, Illinois, United States

•Engaging in user requirement sessions to effectively collect and document business requirements.•Accountable for the development and upkeep of the architectural framework for a Restful API utilizing Spring Boot.•Integrated Spring Security and OAuth 2.0 for secure authentication and authorization of RESTful APIs, ensuring data confidentiality and integrity.•Implemented RESTful APIs using Spring MVC.•The developed Spring Boot application was deployed on the AWS platform utilizing Spring Cloud. •Implemented real-time data streaming using Spring Boot and Apache Kafka. •Designed and implemented Kafka Connect connectors for seamless integration with various data sources and sinks, enabling efficient data ingestion and extraction from external systems.•Experience on practical implementation of cloud-specific AWS technologies including IAM, MFA, Elastic Compute Cloud (EC2), Simple Storage Services (S3), Route 53, Cloud Formation, Elastic Bean Stalk, Virtual Private Cloud (VPC), RDS and Cloud Watch.•Authenticating Users and to provide the security to Restful web services using OAUTH 2.0.•Responsible for designing and implementing the UI component architecture for using Angular 5, Typescript, HTML5, CSS3, and Bootstrap.•Experience in Developing User Interface (UI) Rich Web Applications using Front End/User Interface (UI Technologies using HTML5,DHTML,CSS3 (SaaS, LESS) frameworks Bootstrap, Java script jQuery, AJAX by managing all facets and pipelines of application.•Implemented test-driven development (TDD) practices, writing unit tests before coding, resulting in improved code quality, better design decisions, and faster bug detection and resolution.•Used Jenkins for continuous integration and continuous deployment•Used Selenium web driver for testing the functionality of our application•Used Cucumber for behavior driven testing•Created NewRelic for application monitoring.•Involved in implementing SSO to integrate secure user authentication into the system.

Mount Laurel, New Jersey, United States

• Collaborated as a Scrum team member and actively followed the Agile methodology, engaging in sprint planning sessions and effectively contributing to Software Development Life Cycle (SDLC). • Contributed to the conversion of an existing module into REST microservices, implementing CRUD operations using Spring Boot.•Developed microservices using the Spring framework and performed through testing of the application utilizing Spring Boot. •Application layer POJO classes were created and mapped to the backend Oracle database using the Hibernate framework. •Configuration files, mapping files, and annotations were developed to establish the mapping between POJOs and database tables, effectively managing associations.•Data access was implemented utilizing the Hibernate persistence framework, which serves as ORM tool. •The developed Spring Boot application was deployed on the AWS platform using the Spring Cloud framework. •The development of the user interface involved using a combination of HTML, CSS, jQuery, Angular, JavaScript AJAX, Tag libraries, and Bootstrap. •Used Hibernate as the ORM to access data from SQL server. •Proficient in React and experienced in utilizing the Redux architecture.•RabbitMQ, a message broker, was utilized to transfer messages.• The application was deployed on AWS EC2 instances, and storage was configured on S3 buckets. • Micro-Services were implemented using the Pivotal Cloud Foundry platform.• Used Apache Kafka for maintaining log and tracking stories status in a distributed system environment.• Developed application by utilizing Kafka queue.• The DOCKER tool was utilized to build docker images from docker files.• MOCHA and CHAI were utilized to test React applications, while Karma and Jasmine were used for testing Angular applications. • SPOCK and MOCKITO were employed to write and execute unit test cases. • Log4j tool was utilized for storing logs and facilitating error tracing.

Louisville, Kentucky, United States

Developed Microservices to provide RESTful APIs using Spring Boot with Spring MVC.• Implemented J2EE Design Patterns such as Business Delegate, Factory, Singleton, Session Facade, Service Locator, and DAO.• Engaged in the complete SDLC,starting from requirement analysis to testing.• Developed the business logic using Core Java as Spring Beans.• Utilized the Spring MVC module to develop the MVC architecture, including the development of controllers.• Created POJO objects and utilized Hibernate as the Object-Relational Mapping (ORM) tool to access persistent data from SQL Server.• Configured the Spring Container for Inversion of Control (IOC) and Dependency Injection (DI) of the Spring Beans, managing their lifecycle.• Implemented Restful Web Services using Jersey, transferring data in XML format.•Experience in deploying, managing, and operating scalable and highly available systems on AWS, utilizing continuous delivery methodologies.• Utilized Amazon EC2 for deploying and testing lower environments such as Dev,INT,and Test.• Developed unit test cases and utilized JUnit for conducting unit testing of the application.• Responsible for the overall layout design and prototype using React JS with Redux library, jQuery UI, and CSS/Less and HTML5.• Implemented Spring Boot to create a CRUD back-end for our React-frontend application.• Worked with Jenkins Continuous Integration and Continuous Deployment (CI/CD).• Implemented Struts encouraging application architectures based on the Model View Controller design pattern and Struts 2 framework.• JUnit is implemented along with Mokito to perform unit testing.• Dockerized Spring Boot application to Pivotal Cloud Foundry.• Performed Unit testing on ReactJS applications using Karma and Jasmine tools and worked with the Gulp tool to build automation.• Worked with container-based application deployments using Docker with Kubernetes.

Hyderabad, Telangana, India

Implemented Spring dependency injection to inject the Database helper instance into action objects.• Contributed to the design and development of a multithreaded n-tier application in a distributed environment, specifically for supporting the new CMS System.• Created and executed unit test cases using JUnit.• Developed complex queries using JPA annotations in the POJO.• Played a role in prototyping the Functional Specification Document (FSD) and Technical Design Specification (TDS) for each process.• Implemented J2EE Design Patterns such as MVC, Service Locator, and Session Facade.• Wrote PL/SQL Stored Procedures and Functions for the Oracle 10g database.• Developed web services using XML-based SOAP to facilitate communication with other modules.• Automated test cases using the built-in framework in Selenium WebDriver with NetBeans IDE.• Developed a Message Handler Adapter, responsible for converting data objects into XML messages and invoking enterprise services using Java, JMS, and MQ Series.• Utilized multithreading for invoking the database and developed complex modules containing business logic using Collection, Reflection, and Generics API.• Implemented business logic using Struts action components within the Struts and Hibernate framework.• Developed Stateless Session EJBs to accommodate the business logic.• Developed ADF Model components, including the creation, configuration, and tuning of entity objects, view objects, application modules, bindings, and data controls.• Created various JSP custom tag libraries, including JSTL libraries, to enhance code reusability.• Implemented web services using EJB 3.x stateless session beans.• Developed Message Handler Adapter, which converts the data objects into XML message and invoke an enterprise service and vice-versa using Java, JMS and MQ Series. • Developed ADF Model components (creation, configuration, and tuning of entity objects, view objects, application modules, bindings and data controls)

Hyderabad, Telangana, India

Designed Class diagrams and implemented the web application using Factory, DAO, Singleton, and MVC patterns.• Conducted analysis of the requirements for the project.• Participated in design reviews and contributed to optimizing the application framework.• Developed the business tier using Core Java and HTTP interfaces using Servlets.• Implemented action classes, Action form classes, and JSPs using Struts tag libraries, configuring them in the Struts-config.xml and web.xml files.• Utilized the Struts Validator Framework for server-side and client-side validations.• Worked extensively with Struts Action classes, Action forms, and Struts-config.xml.• Developed front-end components using HTML, JavaScript, CSS, and Ajax, specifically for creating JSP pages.• Used JSP, JavaScript, and jQuery to create a rich user interface.• Applied the Collections API to manage Java Objects in the Business Logic layer.• Designed and developed the persistence tier using the Hibernate 4.2x Framework.• Constructed the admin module using the Struts framework for master configuration purposes.• Established database connections through WebSphere data sources, accessed via JNDI names.• Designed and developed the persistence tier using the Hibernate 4.2x Framework.• Utilized Oracle as the relational database, creating E-R diagrams for the corresponding database tables.• Implemented web services using the SOAP API.• Implemented Log4j to maintain system logs.• Managed build dependencies using the ANT tool.• Optimized the development process by utilizing the Eclipse IDE.