Denny Maldonado

Led migration of legacy EMR modules to Azure Kubernetes Service (AKS) based microservices using ASP.NET Core 6, EF Core, and Docker, enabling reliable scaling during a 3x increase in telehealth visits. Redesigned patient portal from ASP.NET Web Forms/Kendo UI to Angular 14 with RxJS and Figma-driven UI, improving accessibility and reducing bounce rates by 35%. Built REST and FHIR APIs in ASP.NET Core to integrate with Epic and Cerner for real-time clinician access. Implemented event-driven workflows with Azure Service Bus and Functions, reducing integration errors by 30%. Optimized 150+ SQL Server stored procedures and EF Core queries, delivering 60% faster billing and patient lookups with sub-200 ms response times under load. Delivered AI-driven triage with Python and Azure Cognitive Services, automating 35% of initial assessments. Designed ETL pipelines with SSIS, Azure Synapse, and Data Factory for unified analytics. Strengthened security with OAuth2, Azure AD B2C (Entra ID), and Ke

Orchestrated migration of legacy .NET financial services apps to AWS ECS Fargate with SQS and API Gateway, achieving 40% cost reduction and 150% scalability via microservices. Modernized client onboarding with React 16, Next.js, ASP.NET Web API, Kafka, and AWS API Gateway, reducing form abandonment by 25%. Architected secure RESTful and GraphQL APIs using ASP.NET Core, AWS Lambda, and Amazon Cognito for credit scoring and payments, enabling flexible data access and third-party bureau integration. Optimized transactional pipelines on SQL Server RDS and SSIS, cutting reporting latency by 70% and supporting high-volume batch processing. Implemented MFA with OAuth2, Amazon Cognito, and JWT, earning ‘Top Security Advocate’. Built resilient ETL pipelines with AWS Glue and SSIS processing 5TB daily into Redshift for risk analytics, reducing errors by 35%. Delivered data visualizations with AWS QuickSight and SSRS for risk, compliance, and operations. Integrated Dynamics 365 CRM for real-t

Built robust backend systems with C#, Java, and ASP.NET Web Forms to support seamless patient intake with zero data loss for 3,000+ patients. Developed internal desktop apps with WPF to improve scheduling and admin productivity. Optimized SQL Server access via ADO.NET, resolving 99% of data issues within SLAs. Enhanced UI with Blazor, Kendo UI, and jQuery for staff and patient portals. Implemented RabbitMQ-based messaging for asynchronous reminders and billing events. Leveraged Redis caching to reduce SQL Server load and improve response times. Contributed to DevOps using TFS, deploying to Azure App Services and maintaining release scripts.