Ricky Jay Erese

Modernized legacy J2EE modules to Spring Boot 3 microservices with RESTful APIs, integrated Oracle 19c via Spring Data JPA, and deployed containerized services to Azure Kubernetes Service using Helm and Terraform. Developed secure Angular frontend modules with Azure AD OAuth2 and role-based access control. Transitioned RabbitMQ to Kafka event-driven pipelines, implemented Oracle to Azure SQL Database migration with minimal data loss, and built automated Java integration tests to maintain high CI/CD standards. Engineered a patient booking portal using Next.js/React with server-side rendering and optimized a Node.js backend with real-time doctor-patient chat features, all containerized and deployed on Azure with automated pipelines.

Modernized legacy J2EE modules to Spring Boot 3 microservices, designed RESTful APIs with OpenAPI, and integrated Oracle 19c using Spring Data JPA. Deployed containerized services to Azure Kubernetes Service with Helm and Terraform. Built secure Angular frontend modules with Azure AD OAuth2, enforcing role-based access control and securing sessions. Replaced RabbitMQ with Kafka for event-driven pipelines, implemented resilient consumers with retry and dead letter queue handling. Executed Oracle-to-Azure SQL Database migration with less than 0.01% data loss. Developed automated integration test suites using Testcontainers, Maven, and Jenkins, maintaining over 90% coverage. Engineered a Next.js/React patient booking portal with server-side rendering and sub-2-second load times. Built Node.js/Express RESTful APIs backed by Azure Cosmos DB with robust validation and Swagger documentation. Implemented real-time doctor-patient chat using Socket.io with JWT authentication and MongoDB persiste

Implemented advanced full-text product search with PostgreSQL and Laravel Scout, created a Vue/Nuxt search-as-you-type UI, and integrated Stripe payments with secure webhook validations. Designed and enforced Role-Based Access Control with Laravel Gates and Policies, optimized performance with multi-tier caching, and built real-time order tracking using Node.js and socket.io. Developed a collaborative filtering recommendation engine and implemented secure JWT authentication with AWS KMS key rotation. Built cross-system data synchronization pipelines, and designed an event-driven architecture using AWS services for inventory workflows during flash sales.