OpenTrain is hiring a Quantitative Finance AI Research Evaluator to produce expert-level training data and evaluate AI-generated quantitative finance responses for technical accuracy and relevance. Applicants must hold a PhD or master's degree in quantitative finance, mathematical finance, or financial engineering, possess strong English research skills, and be familiar with the arXiv q-fin repository. The opportunity is remote, asynchronous, and open worldwide on a flexible part-time contractor basis.