Senior Software Architect - Remote & Hands-On Tech Leader

One Call is seeking a Senior/Principal Software Engineer to provide architectural depth, delivery excellence, and hands-on leadership in a complex, legacy-heavy environment actively modernizing. You will guide engineers, challenge assumptions, simplify complexity, and make pragmatic tradeoffs that accelerate delivery across .NET, SQL Server, WinForms/Web Forms, and modern .NET Core APIs.

This role sits at the center of technical decision-making with no people management, but high influence,