VIJAY S

Built responsive and reusable user interfaces using HTML5, CSS3, JavaScript, TypeScript, Angular 14/15, React 17, NgRx, RxJS, and Angular Material. Implemented enterprise-grade SPA features with reactive forms, dynamic workflows, and PWA capabilities for offline access and push notifications. Designed and implemented Microservices using Spring Boot, Spring Security, Spring Batch, and Spring Data JPA; created RESTful APIs and service-to-service integrations. Implemented event-driven processing with Apache Kafka and AWS SQS to handle high-volume transactions and notifications. Migrated legacy modules toward a Spring Boot-based microservices architecture; optimized persistence with PostgreSQL and MongoDB. Set up CI/CD pipelines with Jenkins, Maven, Azure DevOps, Docker, and Kubernetes for faster, more reliable deployments. Supported hybrid cloud deployments on AWS and GCP.

Developed dynamic healthcare web applications using Angular 12/13 with RxJS, reactive forms, and validation frameworks. Built reusable UI components, services, route guards, and lifecycle methods to enhance usability. Implemented backend services in Java 17 with Spring Boot, Spring Security, Spring Batch, and JAX-RS; developed microservices for claims processing, enrollment, and provider management. Implemented asynchronous messaging using Apache Kafka, JMS, and AWS SQS; participated in migrating from .NET monoliths to Java Spring Boot microservices. Configured Hibernate/JPA repositories and Oracle 12c data stores; integrated MongoDB for unstructured data. Automated CI/CD pipelines with Jenkins, Maven, Docker, Kubernetes, and Azure DevOps; deployed on AWS and Azure.

Designed responsive customer-facing web applications using React 17, Angular 9, HTML5, CSS3, and Bootstrap. Built reusable React components with Hooks and Redux while modernizing legacy AngularJS modules. Developed backend services with Java 8+, Spring Boot, Spring Data JPA, and a microservices architecture for scalable telecom workflows. Implemented RESTful APIs and Spring Security for enterprise service processing. Enabled asynchronous messaging with Kafka and RabbitMQ for event-driven inter-service communication. Configured Hibernate/JPA mappings with Oracle 11g and MongoDB for persistence and data processing. Automated CI/CD pipelines with Jenkins, Docker, Kubernetes, and Terraform; supported AWS cloud deployments.