DotNET Developer

Benefits:

• 401(k) matching
• Competitive salary
• Health insurance
• Paid time off

About the Role

Imagineeer, LLC is a Virginia-based federal IT and AI services firm: The Mission Studio for AI-Ready Government. We help federal agencies modernize systems, adopt AI responsibly, and deliver better services to the public.

We are seeking a .NET Developer to design, build, and modernize applications that support federal missions. You will work across full-stack web development, cloud-native APIs on Azure, and migration of legacy .NET Framework systems to modern .NET. You will work independently on assigned features while collaborating with senior engineers, analysts, and government stakeholders in an Agile team.

Key Responsibilities

• Design, develop, test, and maintain web applications using C#, ASP.NET Core, and modern front-end frameworks (Angular or React).
• Build and maintain RESTful APIs and microservices, deployed to Microsoft Azure (App Service, Functions, AKS, or similar).
• Modernize legacy applications by migrating .NET Framework code to .NET 6/8+, refactoring for maintainability and performance.
• Design and optimize data access using Entity Framework Core and SQL Server, including queries, stored procedures, and schema changes.
• Write unit and integration tests and take part in code reviews to uphold quality standards.
• Contribute to CI/CD pipelines in Azure DevOps or GitHub Actions.
• Apply secure coding practices aligned with OWASP, NIST, and agency security requirements, and remediate findings from security scans.
• Take part in Agile ceremonies (sprint planning, stand-ups, and retrospectives) and estimate assigned work.
• Troubleshoot and resolve production issues, and document technical designs and procedures.
• Collaborate with business analysts, testers, and government stakeholders to translate requirements into working software.

Required Qualifications

• Bachelor’s degree in Computer Science, Information Systems, or a related field. .
• 4+ years of professional software development experience with C# and .NET.
• Hands-on experience with ASP.NET Core (MVC and Web API) and Entity Framework.
• Experience with a modern JavaScript framework (Angular or React), plus HTML, CSS, and TypeScript.
• Strong SQL skills with Microsoft SQL Server.
• Experience building and consuming RESTful APIs.
• Working knowledge of Git and CI/CD practices.
• Experience working on Agile/Scrum teams.
• Ability to obtain and maintain a Public Trust suitability determination.
• Ability to work on-site in the Washington, DC metro area.

Preferred Qualifications

• Active Public Trust with NIH.
• Prior experience supporting federal government programs.
• Experience with Azure services such as App Service, Functions, Service Bus, Key Vault, and AKS, or with Azure Government.
• Experience migrating .NET Framework applications to .NET 6/8+.
• Familiarity with containerization (Docker, Kubernetes).
• Knowledge of Section 508 accessibility standards and federal security frameworks (NIST 800-53, FedRAMP).
• Exposure to integrating AI/ML services or APIs into applications.
• Microsoft certification, such as Azure Developer Associate (AZ-204).