Senior .net Developer – Financial Systems & Integrations
ASSYST
Sterling, VA, United States
On-site
C# asp.net webforms mvc .net core development
Microsoft sql server database management
Azure entra id azure ad b2c authentication
ASSYST is looking for a Senior .NET Developer to enhance and support complex financial applications and integrations at their Sterling, VA location. The ideal candidate should have extensive experience with legacy systems, finance-tech solutions, and modern UI/UX practices
Job Summary
The role involves supporting and enhancing complex, enterprise-scale financial applications handling high-volume transactions.
Candidates must have extensive experience maintaining legacy applications with limited documentation while designing scalable solutions.
The ideal candidate is detail-oriented and capable of working independently to solve complex financial and technical challenges.
Matching Summary
Match Score: 85
ASSYST is looking for a Senior .NET Developer to enhance and support complex financial applications and integrations at their Sterling, VA location. The ideal candidate should have extensive experience with legacy systems, finance-tech solutions, and modern UI/UX practices.
Skills & Requirements
Must-have
C# ASP.NET WebForms MVC .NET Core development
Microsoft SQL Server database management
Azure Entra ID Azure AD B2C authentication
Paymentus integration experience with iframes
Tyler Technologies MUNIS ERP system integration
Legacy application maintenance with minimal docs
Responsive UI/UX design using Bootstrap or Tailwind
Nice-to-have
AI-assisted development familiarity
Independent problem-solving capabilities
Modern responsive design practices
System administration skills including IIS
Collaboration with technical teams
Key Requirements
7+ years maintaining legacy applications
7+ years developing Finance-Tech solutions
5+ years integrating with Tyler Technologies MUNIS