•Developed dynamic and responsive user interfaces using React framework, to enhance UI.•Implemented server-side logic with Node.js for event-driven architecture to handle concurrent requests•Optimized SQL & NoSQL databases schemas for efficient data storage and retrieval.•Used AWS services like S3, Lambda Serverless API, Gateways, and DynamoDB to build scalable & cost-effective cloud-based solutions.•Utilized TypeScript to write clean, maintainable, and type-safe code, reducing bugs and improving codebase readability.•Implemented RESTful APIs for seamless communication between frontend and backend systems.•Conducted thorough testing and debugging of applications to ensure high quality and reliability.•Collaborated with cross-functional teams, designers & product managers to deliver projects on time.•Implemented security best practices to safeguard applications and data against vulnerabilities.•Stayed updated with latest industry trends & technologies to continuously enhance skills & improve development practices.

• Followed Agile Scrum methodology for developing applications and was involved in the Software Development Life Cycle's analysis, design, development, and testing phases.• Quickly grasped the scope and requirements of the project, aligning them with React, GraphQL, and Typescript stack to provide modern and responsive user interface to develop various screens specifically using NPM and Redux. Developed SPA's using React Redux architecture, ES6, web pack, and grunt by extending ES6 through babel loaders.• Utilized Java 11 and 17, Lambda & streams for internal iteration & chain ops like Filter, Map, Collect on collection. Designed & developed microservices with Spring Boot to execute RESTful APIs for maintainable backend structure using kafka as messaging system.• Used AWS cloud services like EC2, RDS, IAM roles, security groups & EKS for Kubernetes cluster management. Managed builds of Kubernetes apps using Docker containers, manifest files & managed releases of Helm packages.• Integrated AWS monitoring (CloudWatch, DataDog) & logging (Splunk) for visibility into app's performance & behavior. Enacted security best practices, like RBAC, encryption & and security audits to protect sensitive data & and ensure compliance.• Worked on testing frameworks: Junit, Power Mock, Mockito for Integration & and system testing, and Cucumber for BDD. Used Bitbucket for version control & Jira for code review & and efficient issue tracking.

• Work with HTML5, CSS3, JavaScript and React Js for the UI development and enhancements. • Utilized React for its efficient data flow architecture to create a lightweight and render efficient web app that searched projects via the GitHub API through keywords and React-Router to create a single page application.• Implemented the various layers of the application using Spring Framework modules such as Spring IOC, Spring AOP, Spring MVC and Spring ORM, Spring JPA, Spring boot.• Involved in CICD process using GIT, Jenkins job creation, Maven build and publish, and Fabric implementation.• Utilized Slack to communicate with team members and used JIRA to handle software development issues.• Used GitHub as version control management & used Visual Studio Code, IntelliJ as IDE’s to develop the project.• Involved in automation testing using Junit, Selenium and executed test cases using Selenium WebDriver.• Work with back end services using Java 11• Worked on deploying services on Docker and Kubernetes K8 containers.• Written basic SQL queries to retrieve or update data in the database using DBeaver. • Configured and created kitt.yml file, which acts as the API to communicate with the underlying Walmart systems that form the KITT pipeline (Concord, Looper, GitHub).• Built microservices architecture using Docker and Kubernetes for containerization and orchestration, respectively. • Utilized tools such as Swagger for API documentation and Postman for API testing and debugging.• Used Splunk to search, analyze and visualize the data gathered from the applications • Monitored Grafana dashboard to check health of applications, used Dynatrace to locate active issues in clusters • Achieved continuous integration through GIT and looper.

• Followed Agile methodology for developing application and involved in analysis, design, development, and testing phases of Software Development Life Cycle.• Used front-end technologies HTML5, CSS3, JavaScript for interacting with the user interface and built components for the robust front-end Single Page Application built on Angular 8.• Built and consumed RESTful services in modules and implemented serialization using Spring REST and JSON. Designed and developed the REST based Microservices using the Spring Boot, Spring Data JPA.• Designed and developed custom message adapter components using Apache Kafka that allowed the message to travel through Microservices to base on Restful API utilizing Spring Boot with Spring MVC. • Experience with API, setting up Okta API tokens using POSTMAN application. • Used Node.js and Express.js Framework to set up middleware to respond to the HTTP request and MongoDB for persisting information from API developed.• Extensively used Postman for testing REST webservices.• Used SVN for versioning and Log4j implementation is done for logging.• Jira is used for Project Management and GitLab is used for issue and bug-tracking.

• Worked in Agile environment and attended Daily Scrum meetings also involved in the analysis, design/development, and testing throughout the SDLC of project and developed the applications using Core Java concepts, Servlets, JSP and connection to the Database is done by JDBC Bridge.• Involved in developing the web applications using the J2EE frameworks like Model View Controller Struts, Spring and Hibernate where used HTML, CSS, React, JSP, JavaScript, jQuery, Bootstrap, Node JS for developing the single-page UI screens.• Implemented the project by using Spring MVC framework for the business layer using Spring Core, DAO, Spring ORM, and Spring Web MVC. Used Spring Boot at backend which helps to develop application with ease and Implemented Microservices using Spring boot, and used Spring IOC, AOP, Spring Boot to implement middle tier.• Used Hibernate ORM tools which automate the mapping between NoSQL/SQL databases and objects in Java also responsible for writing the SQL Queries, Stored procedures, functions, and triggers for backend communication using JDBC.• Used React JS for templating for faster compilation and developing reusable components.• Worked with messaging systems like Kafka, Implemented Spring Model View Controller (MVC) Architecture and coded Java Beans.• Used Kubernetes to create new cluster and container management tool.• Worked on Docker, creating Docker images and handling multiple images primarily for middleware installations and domain configurations.• Worked AWS services like using S3 bucket and configuring/managing services like AWS EC2, instance backups to S3 bucket.

• Used Eclipse IDE to develop Java code and Jira for defect management System to track and maintain the history of the bugs/issues on everyday basics during the different phases of the Software Development Life Cycle (SDLC).• Developed the business domain layer using Core Java, J2EE, JDBC and used DAO, Transfer Objects, Singleton, Factory and Front Controller design patterns.• Implemented Struts framework in the presentation tier for all the essential control flow, business level validations and for communicating with the business layer.• Developed Stored Procedures in the Oracle 9i database.• Created Azure services using ARM templates and ensured no changes in the present infrastructure while doing incremental deployment.

• Implemented MVC design pattern using Servlets, Java Beans, JSP and used various Core Java concepts and collections framework to build up application.• Deployed & tested the application with Apache Tomcat Server in development and production environment.• Prepared Junit test cases for the application and used Eclipse IDE to build Java Code.• Involved in SDLC phases of the project like requirement gathering, development using agile methodologies.• Used Spring MVC to develop Controllers, Views and Validators. Developed the service and domain layer using Spring Framework modules like Core-IOC, AOP.• Developed the Application Framework using Java 1.6, spring 1.0, Hibernate and Log4J.• Created DB tables, functions, Joins and prepared statements using SQL and connecting through JDBC drivers.• Experienced with database management like Oracle12c.• Configured Hibernate session factory in applicationcontext.xml to integrate Hibernate with spring.• Developed spring rest controllers to handle JSON data and wrote DAO’s and services to handle the data.• Consumed and Create REST Web services using Spring.• Used Maven and Eclipse to develop and build the application and deployed it on JBoss Application Server.• Written ANT scripts for building application artifacts.