Application Developer 4

Project
Description:

Provides
advanced technical expertise and guidance in the design, modernization, and
support of the agency’s mission‑critical software systems. Modernizes legacy
VB.NET / .NET Framework applications into C# and .NET 8+. Ensures solutions are
secure, scalable, and aligned with agency needs. Leverages Azure DevOps for
CI/CD, version control, and work tracking. Works under a highly skilled and
experienced team.

Experience
and Skills Required:

• .NET
  8+ and C# development
  
• Azure
  DevOps for CI/CD, version control, and work tracking
  
• Strong
  analytical and communication skills
  
• Demonstrated
  experience developing and maintaining secure custom web applications using
  C#/.NET, Razor Pages, Entity Framework, and Microsoft SQL Server
  
• Experience
  deploying, configuring, and troubleshooting applications hosted on IIS in
  on-premises Windows Server environments
  
• Strong
  working knowledge of relational database design, stored procedures,
  migrations, data classification/governance, audit trail, and secure
  handling of sensitive application data
  
• Ability
  to work on public-facing and internal enterprise applications where
  security, reliability, auditability, regulatory/statutory compliance, and
  operational stability are critical
  
• Familiarity
  with authentication, authorization, role-based access control, secure
  configuration management, logging, and error handling for production web
  applications
  
• Experience
  working within restricted or high-security enterprise environments where
  arbitrary third-party dependencies, public APIs, SaaS platforms, or common
  cloud services may not be approved or available
  
• Operational
  risk management, ability to understand and safely modify existing
  codebases, including legacy systems, without introducing unnecessary
  architectural complexity or risk
  
• Strong
  documentation, communication, and source control practices, with the
  ability to thoughtfully coordinate changes across development, test, and
  production environments
  

The
Contractor/Technician agrees to the following scope of work which
should include but may not be limited to:

• Modernize legacy VB.NET / .NET Framework applications to C# and
  .NET 8+
  
• Design, develop, and maintain secure web applications using
  C#/.NET, Razor Pages, Entity Framework, and Microsoft SQL Server
  
• Deploy, configure, and troubleshoot applications hosted on IIS in
  on-premises Windows Server environments
  
• Implement and maintain CI/CD pipelines, version control, and work
  tracking using Azure DevOps
  
• Ensure solutions meet agency requirements for security,
  scalability, reliability, auditability, and compliance
  
• Collaborate with stakeholders to understand requirements and
  deliver solutions aligned with agency needs
  
• Maintain strong documentation and coordinate changes across
  development, test, and production environments
  
• Operate within restricted or high-security enterprise environments,
  adhering to agency policies regarding third-party dependencies and cloud
  services
  
• Manage operational risk and safely modify existing codebases,
  including legacy systems
  
• Provide technical guidance and support to team members
  
• This position is expected to work and be available 8-5.