Marc Anthony Smith

Led architecture and development of the Patient Portal using .NET Core and Angular 13, delivering real-time access to medical records with a responsive design. Implemented a microservices architecture with Domain-Driven Design, scalable to 1,000 concurrent users. Built RESTful APIs to integrate with Epic, Meditech, and eClinicalWorks (HL7/FHIR). Enforced security (TLS 1.2, OAuth 2.0) and HIPAA compliance, and designed real-time notifications with SignalR and efficient inter-service communication with gRPC. Optimized AKS and Service Bus for high availability and cost efficiency (20% cloud spend reduction, 99.99% uptime). Enhanced MS SQL Server performance with extensive T-SQL and stored procedures. Integrated Azure AI and OpenAI models to assist billing and health insights. Implemented Datadog APM with distributed tracing to identify bottlenecks (25% performance uplift).

Built and maintained a scalable fintech microservices app using .NET Core and React, ensuring PCI DSS and GDPR compliance. Integrated PayPal and Stripe gateways, improving conversion by 20%. Developed data analytics workflows and ETL processes to support reporting and data-driven decision-making. Optimized SQL Server queries and indexing, reducing peak-load data retrieval times from 1.5s to 0.8s. Streamlined complex DB operations with LINQ/EF, and integrated CRM systems (Umbraco, Dynamics 365). Created Blazor dashboards for analytics, and deployed using Azure services (Functions, DevOps, SQL). Achieved >90% test coverage with xUnit and MSTest to enable CI/CD.

Built enterprise applications for claims processing with ASP.NET MVC and Entity Framework, increasing efficiency through workflow automation. Led migration of legacy apps to .NET Core to improve performance and scalability. Developed RESTful APIs for mobile/web platforms and automated testing with NUnit/Moq, boosting code quality and reliability. Integrated AWS services (RDS, CloudWatch, S3) for scalability and monitoring.