OpenTrain AI is hiring a Structured Data LLM Evaluation Annotator for a four-week remote contractor assignment to create prompts and evaluate how language models reason over structured datasets. Candidates must hold a master's degree or higher, have at least three years of relevant professional, research, or teaching experience, and possess excellent written English. The role requires 20, 30, or 40 hours per week with at least four hours of daily overlap with Pacific Time.