Application Developer 4

Work Mode: In office once or twice a week/flexible days

Application Developer Level 4

ProjectDescription:

Provides advanced technical expertise and guidance in thedesign, modernization, and support of the agency’s mission‑critical softwaresystems. 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. Worksunder a highly skilled and experienced team.

Experienceand 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 securecustom web applications using C#/.NET, Razor Pages, Entity Framework, andMicrosoft SQL Server

·Experience deploying, configuring, and troubleshootingapplications hosted on IIS in on-premises Windows Server environments

·Strong working knowledge of relational database design,stored procedures, migrations, data classification/governance, audit trail, andsecure handling of sensitive application data

·Ability to work on public-facing and internal enterpriseapplications where security, reliability, auditability, regulatory/statutorycompliance, and operational stability are critical

·Familiarity with authentication, authorization, role-basedaccess control, secure configuration management, logging, and error handlingfor production web applications

·Experience working within restricted or high-securityenterprise 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 safelymodify existing codebases, including legacy systems, without introducingunnecessary architectural complexity or risk

·Strong documentation, communication, and source controlpractices, with the ability to thoughtfully coordinate changes acrossdevelopment, test, and production environments

TheContractor/Technician agrees to the following scope of work whichshould 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 inon-premises Windows Server environments

·Implement and maintain CI/CD pipelines, version control, and worktracking using Azure DevOps

·Ensure solutions meet agency requirements for security, scalability,reliability, auditability, and compliance

·Collaborate with stakeholders to understand requirements and deliversolutions 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 cloudservices

·Manage operational risk and safely modify existing codebases, includinglegacy systems

·Provide technical guidance and support to team members

·This position is expected to work and be available 8-5.