Summary
Ernesto Valcarcel is an independent Principal Software Engineer with 20+ years of experience designing and delivering high-performance, high-availability backend systems across finance, healthcare, retail, and government. He specializes in .NET/ASP.NET Core and SQL Server performance tuning, solving real-world production bottlenecks for systems handling millions of daily requests and thousands of concurrent devices. Ernesto combines hands-on implementation—APIs, distributed architectures, and monitoring—with architecture-level guidance for scalability, observability, and reliability. As the owner of Allwaynet LLC he consults part-time or by project, often using AI-assisted tools to accelerate troubleshooting and testing. He is also an active open-source maintainer of .NET tooling for testing and server simulation, reflecting a practical focus on reproducible performance validation. Based in the Atlanta area, he brings a rare mix of deep SQL expertise, systems engineering, and operational troubleshooting.
9 years of coding experience
15 years of employment as a software developer
Bachelor of Science in Electrical Engineering (BSEE), Telecommunications and Electronics, Bachelor of Science in Electrical Engineering (BSEE), Telecommunications and Electronics at Havana Polytechnic University
English, Spanish, French