This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Java Coding Specialist – Freelance AI Trainer Project based in Brazil. Put your Java expertise to work helping shape the next generation of artificial intelligence. In this remote freelance project, you will evaluate advanced language models on Java programming challenges of varying complexity. You will assess whether generated solutions are correct, efficient, well-reasoned, and suitable for production environments. Your work will go beyond code execution to examine software design, edge cases, algorithms, and architectural decisions. You will identify weaknesses in model reasoning and document recurring failure patterns to improve training quality. This opportunity is ideal for experienced Java developers who combine strong technical judgment with clear analytical communication.