To support the improvement of AI-generated content, the part-time freelance Speech AI Evaluation Specialist will engage in voice conversations with AI models in Vietnamese, providing evaluations and feedback on AI responses while working remotely from the USA. Key responsibilities Participate in short voice conversations with AI models using provided scenarios and prompts Evaluate AI responses based on relevance, accuracy, clarity, and overall quality Provide objective ratings and feedback according to project guidelines Required qualifications Native-level fluency in Vietnamese Fluent or advanced proficiency in English (levels B2-C2) Experience in machine learning tasks, data collection, and preprocessing (preferred) Familiarity with data evaluation and quality assurance Knowledge of data annotation and labeling (preferred)