Senior C#/.NET Developer – Plugin & Integration Development

Senior C#/.NET Developer with Autodesk API Experience Overview We are looking for an experienced C#/.NET developer to help build, customize, and integrate solutions around Autodesk products such as AutoCAD, Revit, Civil 3D, Plant 3D, Autodesk Construction Cloud (ACC), Autodesk Platform Services (APS), and Vault. This is a software development role focused on plugins, integrations, automation, and custom applications. We are **not** looking for CAD designers, drafters, BIM modelers, or engineering design professionals. Responsibilities * Develop custom applications, plugins, and integrations using C# and .NET * Build solutions that integrate with Autodesk products and APIs * Design and implement desktop applications using WinForms and/or WPF * Develop REST APIs and backend services using ASP.NET Core * Work with SQL Server and other databases to design schemas and implement data access * Analyze business requirements and translate them into technical solutions * Create technical documentation and implementation plans * Participate in solution architecture, development, testing, and deployment * Collaborate with stakeholders to deliver scalable and maintainable solutions Required Skills * 5+ years of professional C#/.NET development experience * Strong experience with .NET Framework and/or .NET Core/.NET * Experience developing plugins, extensions, or integrations for one or more Autodesk products: * AutoCAD * Revit * Civil 3D * Plant 3D * Autodesk Construction Cloud (ACC) * Autodesk Platform Services (APS) * Vault * Experience with Autodesk APIs and SDKs * Experience with WinForms and/or WPF desktop application development * Experience building REST APIs using ASP.NET Core * Strong SQL Server and database design skills * Experience with Git and modern development practices Nice to Have * Experience in AEC (Architecture, Engineering & Construction) or Manufacturing domains * Experience with cloud-based integrations and web services * Experience working directly with enterprise customers * Familiarity with Agile development methodologies Screening Questions 1. Which Autodesk products have you developed custom solutions for? 2. Describe a plugin or integration you built using Autodesk APIs. 3. How many years of experience do you have with C# and .NET? 4. Have you developed WinForms or WPF desktop applications? Please provide examples. 5. Have you built REST APIs using ASP.NET Core? Please describe your experience. 6. Share links to relevant projects, GitHub repositories, or portfolio items if available. Project Type Long-term contract with potential for ongoing work.