Senior .NET Full-Stack Developer Job id: 005

About the role

The Senior .NET Full-Stack Developer is the primary application-layer engineer on the TMS contract. This individual owns break/fix resolution, preventive maintenance, and SOW development across the most complex TMS modules.

Responsibilities

• Diagnose, resolve, and document all error and malfunction reports within the 2-business-day SLA (§2.3.5); deliver code corrections with documentation adequate to explain the problem resolved and any operational differences
• Maintain and enhance TMS applications across the .NET Webforms and ASP.NET MVC stack using C# v12, Visual Studio (current release), Azure DevOps, and GIT source repository
• Perform preventive maintenance: small modifications to retain or restore functionality, production monitoring to detect errors, and regular updates to 3rd-party dependencies including DevExpress 24.2+ and code-language versions (§2.3.8)
• Develop SOW programming deliverables on schedule and within firm-fixed hours; stage work for MoDOT system test per approval workflow
• Participate in code and architecture walkthroughs per MoDOT Best Practices (§2.2.3); follow all MoDOT coding standards
• Support impact analysis before each release: identify and document effects of proposed changes on data-dependent TMS modules (§2.3.8)
• Enter all time worked into MoDOT's Service Desk Plus at end of each week; resolve assigned tickets within timeframes agreed with the Project Manager
• Maintain compatibility with MoDOT's evolving infrastructure: implement modifications within 30 days of notification of any architecture change (§2.1.5)
• Produce and maintain technical documentation (engineering notebooks, flowcharts, code commentary) as part of Technical Records obligations (§2.3.4)
• Ensure all developed solutions meet ADA/Section 508 accessibility standards; document and review recommendations with MoDOT before development

Qualifications

• Minimum 3 years of professional .NET application development experience (C#, ASP.NET MVC, .NET Framework and/or .NET 8+)
• Minimum 1 year of experience with Webforms and MVC web development in a .NET environment (§2.2.3)
• Minimum 1 year of experience with Web Services (SOA) (§2.2.3)
• Minimum 1 year of experience with REST/SOAP APIs (§2.2.3)
• Experience with Oracle database in a .NET application context
• Experience with Azure DevOps and GIT source control
• Minimum 1 year of experience similar to MoDOT's current computer technical architecture
• Ability to pass MoDOT background check

Prior to employment

• Pass MoDOT background check