Sergio Villarreal
Senior Manager | AI & Cloud Architecture
- Role
- Senior Manager Cloud Architecture at CapTech
- Location
- Austin, TX, US
- LinkedIn followers
- 500 followers
About Sergio Villarreal
Principal Software Engineering Professional | Azure Cloud Architect Results-driven…
Experience
Senior Manager Cloud Architecture
Jan 2025 — Present
Architected, designed, and implemented the backend infrastructure and cloud architecture for a HIPAA-compliant healthcare management system integrating AI and cloud-native services.Led technical direction and managed a team of UI developers, overseeing infrastructure and backend delivery.Developed a robust microservices backend using ASP.NET Core 8 and Azure Functions for scalable background processing.Designed and provisioned cloud infrastructure using Microsoft Azure services, including App Services, Azure Functions, Cosmos DB, Blob Storage, and Static Web Apps.Built intelligent processing pipelines integrating Azure OpenAI (GPT-4) for document summarization and Azure Document Intelligence for extracting structured content from medical records.Architected an AI-powered medical data chat interface leveraging GPT-4 and secure context-aware embeddings, enabling clinicians to interact with patient data conversationally.Established secure authentication using Azure Active Directory with Role-Based Access Control for roles.Implemented secure data access patterns using Azure Key Vault, encrypted storage, and audit trails for HIPAA compliance.Integrated Athena Health API for clinical data synchronization and designed the backend services layer.Enabled real-time communication via SignalR for live document processing updates and collaboration.Deployed infrastructure as code using Terraform CDK, and built CI/CD pipelines with Azure DevOps.Defined coding standards, led technical planning, and conducted code reviews to ensure scalable and maintainable architecture.Skills: ASP.NET Core 8, C#, Azure Functions, Azure Cosmos DB, Azure Blob Storage, Azure OpenAI (GPT-4), AI Chat Interfaces, Azure Document Intelligence, Azure AD, SignalR, Azure Key Vault, Azure DevOps, Application Gateway, VNets, Firewalls, Terraform CDK, Python, TypeScript, PL/SQL, Event-Driven Architecture, Clean Architecture, Microservices, CI/CD, Infrastructure Design, Team Leadership
Education
Universidad del Norte, A.C.
Dual Major: Industrial Engineering and Systems Engineering, Computer Software Engineering
Universidad Autónoma de Nuevo León
Master, Computer Systems Networking and Telecommunications
Microsoft Learn
Computer Software Engineering
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