Coding Specialist (Fluent in Chinese) - Freelance AI Trainer Project

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Coding Specialist (Fluent in Chinese) - Freelance AI Trainer Project based in Brazil. In this high-impact remote freelance role, you will help shape the next generation of artificial intelligence by serving as a technical subject-matter expert training advanced large language models. Combining deep software engineering knowledge with full fluency in Chinese, you will rigorously evaluate, challenge, and refine model performance across algorithms, data structures, system architecture, and cloud infrastructure. Operating in a flexible, autonomous environment, your daily work involves conducting complex technical conversations in Chinese, diagnosing reasoning failures, and creating reproducible error traces to harden AI capabilities. By evaluating coding logic, natural language fluency, and secure development practices, you will directly influence how AI tools learn to solve complex engineering problems worldwide. This position offers a unique opportunity for talented developers to turn their technical mastery and language skills into the foundational knowledge base for future AI technologies.