Backend C#/.NET Developer

Remote, Worldwide

Job Title: Backend C#/.NET Developer

Job Type: Contract

Location: Remote

Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.

Key Responsibilities:

Design, develop, and maintain robust backend services and APIs using C# and .NET frameworks.

Collaborate with cross-functional teams to define technical requirements and deliver scalable solutions.

Ensure high standards of code quality, reliability, and security in all backend implementations.

Optimize existing backend processes for performance, scalability, and maintainability.

Troubleshoot, debug, and resolve backend issues efficiently in production and staging environments.

Document technical specifications and backend architecture clearly for team collaboration.

Contribute to the continuous improvement of development processes and best practices.

Required Skills and Qualifications:

Expert-level proficiency in C# and the .NET ecosystem.

Strong experience with MySQL databases, including schema design...