OpenTrain is hiring a Python Machine Learning Engineer for a remote, part-time contract role requiring 20+ hours per week across data pipelines, modeling, deployment, and optimization. Candidates must hold a relevant quantitative degree, have at least four years of hands-on data science or machine learning experience, and be proficient in English. The position is open exclusively to applicants located in India, Pakistan, Nigeria, Kenya, Egypt, Ghana, Bangladesh, Turkey, or Mexico.