Julio Ayala

I’m a Software Architect and Full-Stack Engineer with 5+ years delivering end-to-end enterprise systems across web, backend, and mobile. I lead multi-country platform architecture on .NET 8, Angular, SQL Server, and Azure, with a strong focus on Clean Architecture and scalable system design.

In my flagship work, I solo-built an Electronic Signature REST API (.NET 8) deployed across 5 countries, combining Azure Key Vault security, hardened multi-scheme auth (OAuth 2.0, JWT/JWKS, PKCE), and live multi-signer orchestration with SignalR. I also built ExcelAuthGateway, an enterprise BFF centralizing OAuth 2.0 sign-in with Microsoft Entra ID, including a zero-downtime HS256 to RS256 (JWKS/OpenID discovery) migration and platform hardening with strict cookie and security headers.

Today, I lead architecture and delivery of an enterprise document-automation platform at Excel Automotriz, defining REST API surfaces and domain layers, building Angular front-ends, tuning SQL Server performance, and designing Azure DevOps CI/CD with Key Vault and App Registrations. Earlier roles sharpened my craft across .NET/C#, PHP, MySQL, VB.NET, accounting modules, and internal tools—always with disciplined engineering practices like Scrum/Agile, code review, and technical documentation.