Spanish Audio Specialist - 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 Spanish Audio Specialist - Freelance AI Trainer Project based in Brazil. This remote freelance role contributes to the evaluation and improvement of advanced conversational audio AI models designed for real-world customer support scenarios. You will create and perform role-play evaluations across areas such as travel, financial services, telecommunications, and technical support. The role combines strong Spanish and English communication skills with structured evaluation, audio quality assessment, and technical reasoning. You will assess how accurately and naturally AI agents understand requests, follow instructions, and complete tasks. You will also help build diverse datasets that reflect realistic customer interactions and expectations. This is an opportunity to contribute to the development of next-generation conversational AI while working flexibly on a specialized evaluation project.