Sr Level .NET Full Stack Engineer

We are seeking a Software Engineer to support the modernization and migration of a legacy application stack. The ideal candidate will have an extensive background in C# .NET, ASP.NET MVC, and Microsoft SQL Server, with hands-on experience in upgrading and refactoring enterprise applications. Responsibilities: Upgrade and refactor legacy .NET applications (currently on .NET Framework 4.x / ASP.NET MVC 5) to .NET 9. Debug and maintain application layers: frontend (JavaScript/jQuery), middle tier

Senior Full Stack .NET Engineer E-Commerce Integration MARS Solutions Group is partnering with a leading provider of technology, equipment, and services supporting senior living and healthcare organizations nationwide. We are seeking a Senior Full Stack .NET Engineer to join a critical e-commerce integration project. Contract: 3 months, 40 hrs/week Location: 100% Remote Potential Extension: Possible based on project roadmap This is a hands-on development role focused on enhancing an existin

OneSparQ is looking for a .NET Engineer to manage production support, feature adds and bug fixes for an enterprise .NET/C# custom application. The role is fully remote preferred living in the greater Dallas or Phoenix Area. Responsibilities: Architecting and delivering microservices on ASP.NET Core (.NET 8+) using DomainDriven Design, Clean Architecture patterns, and contractfirst service definitionsStructuring solutions with clear separation of concerns across Presentation, Application, Domain,

6 MONTH CTH REMOTE- EST/CST RESIDENTS WILL ONLY BE CONSIDERD VENDORS WILL NOT BE CONSIDERED SR .NET DEVELOPER Design, develop, and maintain high-quality, production-grade software solutions aligned with enterprise standards, using Microsoft .NET (Framework and .NET Core), C#, SQL Server, and integrated system components.Contribute across all phases of the software development lifecycle, ensuring adherence to documented processes, coding standards, and quality guidelines.Collaborate with cross-