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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior .NET Developer (.NET Framework / .NET Core) - **Company:** Fathom Management LLC - **Location:** Austin, TX, United States (Remote available) - **Experience:** Expert - **Salary:** $120,000.0 - $140,000.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), Clean Code Principles, .NET Framework, Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Automation of Tests, Microsoft Azure, Backup Devices, C Sharp (Programming Language), Software Quality, Code Review, Databases, Software Debugging, DevOps, Routing, OAuth, Software Deployment, Software Engineering, Management of Software Versions, Enterprise Software Applications, .NET Core, Asp.net Web Api, Software Troubleshooting, Backend, Information Technology, Integration Frameworks, Front End Software Development, Cloud Integration, Api Design, Restful APIs, Api Management - **Published:** July 27, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=2a8037c762065144 ## About the Role * Bachelor's degree in Computer Science, Information Technology, Software Engineering, or a related field. * Minimum 5 years of experience developing enterprise .NET applications and APIs. * Advanced experience with: + C# + ASP.NET Web API + .NET Framework + .NET Core + RESTful API Development * Experience implementing authentication and authorization using OAuth, JWT, or similar security frameworks. * Experience developing and deploying APIs through CI/CD pipelines. * Strong troubleshooting, debugging, and software testing skills. * Excellent communication and collaboration abilities., * Experience with Microsoft Azure. * Experience using Azure API Management (APIM). * Experience supporting Azure cloud integration platforms. * Experience leveraging AI tools to accelerate software development and testing. * Experience supporting Department of Veterans Affairs or other Federal agencies. * Familiarity with Agile software development methodologies. ## Description We are seeking an experienced Senior .NET Developer to support the Department of Veterans Affairs by developing and maintaining enterprise APIs within an Azure-based integration platform. This platform enables secure communication between CRM applications and backend databases through scalable, high-performance RESTful APIs., The successful candidate will design, develop, test, and support .NET Framework and future-state .NET Core APIs while collaborating with application developers, architects, and data teams to deliver secure, reliable integration services supporting critical VA business operations., * Design, develop, and maintain enterprise REST APIs using C#, ASP.NET Web API, .NET Framework, and .NET Core. * Develop scalable, secure, and maintainable integration services supporting enterprise applications. * Build APIs that integrate with authentication providers using OAuth, JWT, and modern security patterns. Azure Integration * Package and deploy APIs into Azure environments. * Publish and manage APIs using Azure API Management (APIM), including routing, versioning, monitoring, and policy enforcement. * Support cloud-based API modernization initiatives and future migration from .NET Framework to .NET Core. DevelopmentTesting * Develop unit, integration, and functional tests for enterprise APIs. * Participate in code reviews and technical design sessions. * Leverage AI-assisted development and testing tools to improve software quality and productivity. * Troubleshoot and resolve production issues affecting enterprise APIs., * Collaborate with frontend developers, backend database teams, DevOps engineers, QA analysts, and solution architects. * Create and maintain technical documentation, API specifications, and implementation guides., * Secure, scalable, and reliable enterprise APIs. * High-quality code following software engineering best practices. * Successful migration from .NET Framework to .NET Core. * Stable Azure API platform with minimal production issues. * Strong collaboration across development, infrastructure, and business teams. ## Related Videos - [Why you must use TDD now!](https://www.wearedevelopers.com/videos/114-why-you-must-use-tdd-now) - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [F#, path to functional enlightenment](https://www.wearedevelopers.com/videos/706-f-path-to-functional-enlightenment) ## Related Articles - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers) - [How Much FAANG Companies Actually Pay Software Engineers in 2025](https://www.wearedevelopers.com/magazine/230-how-much-faang-companies-actually-pay-software-engineers-in-2025) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)