.NET Developer

About Us

We're looking for a seasoned .NET developer to join the Coulter Software team on a full-time remote basis. You'll work on a mix of client engagements and internal product development including legacy application modernization, cloud migrations, and AI-powered platform builds. This role is a great fit for someone who's done real work in transportation or rail systems and is ready to bring both deep .NET expertise and modern cloud/Python skills to a lean, capable team.

Responsibilities

• Develop, maintain, and modernize .NET applications for clients across transportation, logistics, and manufacturing sectors
• Work with legacy WinForms and ASP.NET codebases, improving stability, performance, and extensibility
• Design and optimize SQL Server databases and stored procedures
• Contribute to cloud migration and AWS deployment efforts
• Build or support Python/Django components where applicable
• Participate in DevOps practices, CI/CD pipelines, deployments, and infrastructure automation
• Collaborate directly with clients and internal team members throughout the project lifecycle
• Document technical decisions, architecture, and processes

Qualifications

• 5-8 years of professional .NET software development experience
• Strong SQL Server skills (schema design, stored procedures, query optimization)
• WinForms experience, comfortable maintaining and extending desktop applications
• ASP.NET (Web Forms and/or MVC/Core)
• Prior experience in the transportation industry, ideally rail
• Experience modernizing or migrating legacy applications
• At least one of: active AWS certification, Python/Django development experience, or DevOps/CI-CD pipeline experience
• Strong written and verbal communication skills, client-facing work is part of the role