Mathematics Specialist (Fluent in Korean) – AI Trainer with Meridial Marketplace, by Invisible. Remote contract position seeking a mathematics specialist fluent in Korean to train AI models by conversing with them on advanced mathematical topics, verifying accuracy, documenting errors, and suggesting improvements. Required expertise spans algebra, calculus, number theory, linear algebra, differential equations, statistics, geometry, and discrete mathematics. A master's or PhD in mathematics is ideal, along with peer-reviewed publications, teaching experience, or research background. You will converse with AI models on mathematical scenarios, verify factual accuracy and logical soundness of model outputs, capture reproducible error traces, and suggest improvements to prompt engineering and evaluation metrics. Clear, metacognitive communication—showing your work—is essential. Pay range $6-$65/hour depending on experience and location. Contractor supplies secure computer and high-speed internet.