Architected and implemented a Spring Boot microservices platform for the CMS EQRS clinical data collection system, decomposing a monolithic codebase into 12+ independently deployable services and reducing deployment cycle time by 40%.

Built React.js and Angular 8 frontend modules that consume RESTful backend APIs, delivering HIPAA-compliant, responsive Ul components that reduced clinician data entry time by 25% across 6,000+ dialysis facilities.

Developed dynamic and reusable UI components using React.js (Hooks, Context API) to consume Spring Boot REST APIs, improving frontend performance and reducing page re-render time by 20%

Designed and built full-stack features for a financial services client portal using Angular 6 and Spring Boot, enabling trade backdate management and consolidated client reporting for 3 business units serving thousands of institutional accounts.

Migrated a monolithic J2EE application to a Spring Boot microservices architecture on AWS, improving horizontal scalability and enabling independent service deployments that reduced production release risk.

Developed event-driven AWS Lambda functions integrated with S3 and EC2, automating scheduled data processing workflows and eliminating manual intervention in nightly batch trade reconciliation jobs.

Developed core Java and J2EE application components for an enterprise AP automation system, implementing business logic for invoice matching, vendor validation, and exception processing using EJB, Servlets, and JSP on WebLogic Application Server.

Designed asynchronous JMS messaging queues configured in WebSphere Application Server to handle high-volume invoice event processing, decoupling upstream document ingestion from downstream approval workflows.

Built data access layers using JDBC and Hibernate connecting to Oracle databases, implementing locking mechanisms with Java multithreading to prevent concurrent write conflicts during invoice commit operations.