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Fulltime Senior Associate .NET Developer Virginia USC ONLY

AVSI Systems
Arlington, Virginia I.T. & Communications Today
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Job description

Hi,
We have the following requirements. If interested, please share your resume.

Role : Senior Associate .NET Developer
Location : Arlington Virginia
Employment type : Full-time
Visa : USC (ONLY)

Job Description
We are looking for a .NET senior developer to partner with federal health clients undertaking major digital engagement initiatives.
You'll balance hands-on maintenance of mission-critical systems with opportunities to design and build new capabilities that further the mission of a large NIH institute.
We are on a mission to transform the world, and you will be instrumental in shaping how we do it with your ideas, thoughts, and solutions.

Required Skills and Experience:
4-7+ years experience in .NET full stack development
Strong knowledge of the .NET ecosystem, including C#, .NET Core, .NET Framework, and Entity Framework (Code-First and stored-procedure hybrid patterns)
Frontend development experience with React, JavaScript/TypeScript, HTML, and CSS, with the ability to work across both frontend and backend application layers
Experience with SQL Server: writing and maintaining stored procedures, understanding query performance, and working across dev/QA/stage/prod environments
Comfort operating within a layered architecture
Experience with Git-based version control and CI/CD pipelines (GitHub Actions or equivalent)
Demonstrated ability to read, diagnose, and safely modify unfamiliar or partially documented code; this role includes significant ongoing operations and maintenance work, not just new development
Strong troubleshooting and root-cause analysis skills across the full stack, including the ability to triage ambiguous, cross-cutting issues
Experience in writing automated unit tests
Ability to build technical remediations for Section 508/accessibility issues
Ability to work independently on assigned tasks while also collaborating closely with other developers, QA, and DBA when necessary
Professional communication skills suitable for client-facing scenarios
NET / MVC and Object-oriented design
Experience developing, consuming, and troubleshooting RESTful APIs using C#/.NET
Experience with Agile/Scrum development methodologies
Eligible for U.S. Government Clearance public trust
Mandatory Experience:
Experience with Active Directory group-based access control and authentication/authorization patterns
Experience maintaining and troubleshooting Sitecore-based .NET applications hosted in Azure, including supporting existing applications through decommissioning or transition
Experience with GitHub Actions, Azure DevOps, or similar CI/CD platforms
Exposure to Power Apps, Power Automate, or SharePoint Online
Experience integrating Azure OpenAI into a .NET or similar web application (genuinely a plus rather than a core expectation)
Experience with SyncFusion or similar reporting/export component libraries
Experience with SeriLog or structured application logging and error-tracking practices
Familiarity with CQRS, Repository, and Dependency Injection patterns
Experience contributing to legacy modernization or decommissioning efforts
Experience contributing to test automation strategy or execution
Familiarity with accessibility design philosophy and best practices for federal web applications
Prior experience in a federal/government contracting environment, especially NIH or HHS
Experience working in Jira or similar project management platform
Additional Information
An inclusive workplace that promotes diversity and collaboration.
Access to ongoing learning and development opportunities.
Competitive compensation and benefits package.
Flexibility to support work-life balance.
Comprehensive health benefits for you and your family.
Generous paid leave and holidays.
Wellness program and employee assistance.



Regards,
Sam
AVSI Systems LLC
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