• Involved in various phases of the Software Development Life Cycle (SDLC) such as requirements gathering, modeling, analysis, design, development, and testing.• Followed Agile/Scrum methodology that included iterative application development, weekly Sprints, and stand-up meetings.• Implemented deployment procedures of J2EE applications and code to the JBoss Application server.• Executed processes for installation and maintenance of Apache Web server and JBoss Application server.• Experience in Designing, Architecting, and implementing scalable cloud-based web applications using AWS and GCP.• Set up CP Firewall rules to allow or deny traffic to and from the VM's instances based on specified configuration and used GCP cloud CD (content delivery network) to deliver content from CP cache locations drastically improving user experience and latency.• Experience in providing highly available and fault-tolerant applications utilizing orchestration technologies like Kubernetes and Apache Mesos on the Google Cloud Platform.• Developed internal coding using J2EE technologies based on the MVC Architecture• Core Java with Concurrent API is used extensively for parallel processing and chunk processing of data and converts it into JSON and stores it NoSQL database Mongo DB.• Used Java 1.8 features like Lambda expressions and Stream API to support functional-style operations on streams of elements.• Developed UI using web technologies like JSPs, Angular JS, HTML5, CSS3, Bootstrap, AJAX, JavaScript, Typescript, and JQuery.• Used Spring Boot which is radically faster in building cloud MicroServices and developing Spring-based applications with very less configuration.• Developed Microservices & APIs using Spring Boot, Spring MVC, and Spring Integration.• Implemented Apache Kafka producer and consumer for asynchronous stream processing, and search APIs using data indexing on the Elastic Search.• Implemented modules into Node.js to integrate with designs and requirements

• Developed Single Page Applications (SPA) using Typescript, JavaScript, Jquery, Ajax, HTML, CSS, and Bootstrap.• Developed microservices architecture using Rest APIs, Spring Boot, and Pivotal Cloud Foundry (PCF).• Worked to secure our RESTful web services using OAuth 2.0 with Spring security to authenticate any third-party requests.• Developed data transformer for converting legacy data from Source tables to Avro format and fed into Kafka using Camel.• Develop and modify NOSQL modules for different NoSQL (MongoDB) modules for business logic.• Involved in working with core Java concepts collection API, Stream API, Parallel Streams, exception handling, Multithreading, HashMap, concurrency, JDBC, modularity, Filters, etc. • Designed and developed custom message adapter components using Apache Kafka.• Designed MVC architecture and Front control design pattern using Spring MVC Framework for the Presentation tier and written code using Spring MVC Framework for the Presentation layer and spring dependency injection.• Used a Microservice architecture with Spring Boot-based services interacting through a combination of REST to build, test, and deploy identity Microservices.• Worked on Auto Scaling, Cloud Watch (monitoring), AWS Elastic Beanstalk (app deployments), Amazon S3 (storage), and Amazon EBS (persistent disk storage). • Deployed the Application into Dockers container and made it easily accessible at runtime using Cloud Foundry and other cloud services like AWS Cloud. • Deployed Docker-contained Spring REST services into AWS EC2 container service using AWS admin console and used lambda to run applications in AWS console. • Involved in writing Java API for Amazon Lambda to manage some of the AWS services.• Designed and developed RESTful Web Services using Spring Boot. • Developed User Interface using Google Web Toolkit (GWT) features like Data Binding, Activity classes, and editing ui.xml to create UI components.

• Designed dynamic and browser-compatible pages using HTML, CSS, jQuery, Ajax, Bootstrap, LESS, ES6, and JavaScript.• Involved in working with Babel and Webpack in application build and deployment processes.• Involved in developing Thread Safe blocks for multithread access and distributed transaction management.• Created and injected spring services, controllers, and DAOs to achieve dependency injection.• Used Agile methodology and effectively took part in Scrum gatherings to deliver quality deliverables within time.• Heavily used Spring Inheritance, Auto-wiring, Core Container, Security, AOP, and Spring Quartz for scheduling tasks to generate reports and emails to clients.• Developed a Persistence layer using Spring Data to interact with the Database.• Developed Spring Restful/Microservices and implemented Spring Restful/MicroServices and Spring Eureka, Netflix, and Ribbon as part of Services Discovery using Apache Axis.• Implemented Spring MVC flow to interact with different modules and extensively used Spring AOP and Dependency injection during various modules of the project.• Used the fundamentals of Java 1.8 features like parallel streams and filters through lambda expressions to handle searching.• Developed with Spring Eureka to retrieve API routes for the entire cluster. Using this strategy each spring service in a cluster can be load-balanced and exposed through one API gateway.• Used Microservice architecture with Spring Boot-based services interacting through a combination of REST and Apache Kafka message brokers.• Involved in coding with Core Java concepts like Collections, Stream, Hashmap, Filters, Exception Handling, Multithreading, Java I/O, and Generics to implement some business logic.• Used Spring Boot framework to write Presentation Layer, Business Layers, and Controller servlets. • Employed Spring Boot for initializing and bootstrapping the build configuration for the boot-based web applications.

• Worked on Java functional programming concepts like Streams, Functional Interfaces, new date time API, and lambda expressions.• Extensively Used Jenkins as a Continuous Integration tool to deploy the Spring Boot Microservices to Pivotal Cloud Foundry (PCF) using build pack. Used Pivotal Cloud Foundry to quickly build, deploy and update the applications.• Created plugins to extract data from multiple sources like Apache Kafka, Databases, and Messaging Queues.• Utilized Hibernate for Object Relational Mapping (ORM) purposes for persistence in the database.• Used loosely coupled architecture Spring Boot and Developed Microservices in the application by using Spring Boot.• Implemented Java 1.8 features such as lambda expressions, filters, and Parallel operations on collections for effective sorting mechanisms.• Designed, coded, implemented, optimized, and tested new features and modules for the derivatives system as part of an Agile team and improved automation test suites.• Developed MicroServices for service-oriented architecture to build flexible and independently deployable software.• Developed web pages using JavaScript, HTML, CSS, Jquery, JSON, JSP, AJAX, and Bootstrap.• Developed Web API using Node JS and hosted on multiple load-balanced API instances.• Developed RESTWeb Services for clients to consume those Web Services as well as other Enterprise-Wide Web Services.• Used Ext JS, D3 JS, Node JS, Angular JS, and Polymer JS for Building web applications.• Worked with Spring AOP module to perform logging operations.• Developed independent Microservices using Spring Boot Rest Controller model and deployed on UNIX boxes.• Development of cloud-hosted web applications and REST APIs using Spring Boot with embedded Tomcat.• Used Core Java concepts such as Multithreading, Exception Handling, Hashmap, Collections, Streams, and Filters to implement various features and enhancements.