Senior C# Developer

freeC's Client

• Design and develop plug-ins for CAD/BIM software (e.g., Autodesk Revit) used in architecture, construction, and manufacturing industries.
• Create and maintain technical documentation and user manuals.
• Implement and maintain unit tests to ensure code quality.
• Collaborate with cross-functional teams to identify, diagnose, and resolve software defects effectively.
• Participate in design discussions and code reviews to ensure best practices and software quality.
• Manage and prioritize assigned tasks; provide progress updates and time estimates to senior management.
• Research and explore new technologies and actively share knowledge within the team.
• Perform other tasks as assigned by the Project Manager.

Requirements

• Hands-on experience developing desktop applications using WPF.
• College or University graduate.
• Strong proficiency in C#, OOP, and SOLID principles.
• Ability to read and produce detailed technical documentation.
• Experience in designing and developing large-scale, complex systems.
• Solid background in .NET projects, with experience in algorithms and complex data structures.
• Good English skills (reading and writing). Japanese proficiency is a plus but not required.

Nice to Have

• Experience developing with Revit API.
• Experience developing with CAD systems.
• Interest or background in architecture, construction, or manufacturing systems.
• Passionate about programming and eager to learn new technologies.
• Strong understanding of advanced mathematics, such as optimization.

• 13.5 months’ salary annually.
• Flexible working hours, Monday to Friday. Focus on results — no micromanagement.
• Spacious, modern office with an open and collaborative workspace.
• Stable, long-term career — we build and grow our own world-class products.