Machine Learning Expert Python GenAI SQL

About OpenTrainOpenTrain is the #1 platform for finding and building careers in AI training and data labeling. OpenTrain AI is the hiring and contracting organization for this role, connecting expert contributors with projects that help improve modern AI systems. Creating an OpenTrain account is free, and qualified candidates can apply in minutes. Remote opportunity listed for contributors worldwideProject-based contractor engagementPart-time work with flexible contribution periodsHourly pay ranging from $15 to $40 USDAbout AI Training WorkAI training is the human side of building artificial intelligence. Experts create examples, evaluate model responses, and verify technical content so AI systems can produce more accurate, useful, and reliable results. In this project, your machine learning and computational STEM expertise will help train models on challenging problems that require programming, statistical reasoning, and careful validation. Work directly with text-based AI training dataUse human expertise to improve model reasoning and technical accuracyContribute to cutting-edge generative AI and machine learning developmentWork remotely with a computer and internet connectionThe RoleAs a Machine Learning Expert, you will create and verify original computational STEM and machine learning problems. The work focuses on problems that reflect real scientific workflows, require Python programming and non-trivial reasoning, and cannot be solved manually in a reasonable amount of time. You will document clear problem statements, produce correct answers, and validate solutions with reproducible Python code and standard data science libraries. The project includes prompt and response writing, text generation, question answering, evaluation, and programming-focused tasks. Data type: TextSubject matter: Machine learning, statistics, and computational STEM problemsExperience level: ExpertRequired English level: Fluent, with written English at C1+ or equivalentEmployment type: Contractor and part-timePay: $15 to $40 USD per hourThe project is listed as worldwide, with USA noted as a restricted location in the screening detailsWhat You'll DoYou will design technically rigorous training examples and test whether the resulting solutions are accurate, reproducible, and clearly explained. Your work will combine machine learning knowledge, statistical analysis, software development, and technical writing. Create original computational STEM and machine learning problemsDesign problems with clear solution paths and meaningful scientific or technical workflowsWrite Python-based solutions for non-trivial computational tasksVerify answers using NumPy, Pandas, SciPy, scikit-learn, or similar librariesValidate outputs with reproducible code and correct resultsWrite clear problem statements, explanations, and documentationEvaluate and rate responses for accuracy, reasoning quality, and technical correctnessCreate question-answering, text-generation, and programming examplesRequirements and Technical ExpertiseThis role is intended for experienced machine learning specialists who can demonstrate substantial hands-on work and business impact. You should be comfortable translating advanced concepts into precise computational problems and validating solutions independently. At least 5 years of hands-on machine learning experience with demonstrated business impactExpert Python skills for data science, including NumPy, Pandas, SciPy, and scikit-learn; statsmodels is a bonusStrong statistical analysis skills and understanding of machine learning algorithms and practical trade-offsStrong SQL skills, including joins, aggregations, window functions, and database data manipulationExperience with GenAI approaches such as LLMs, RAG, prompt engineering, and vector databasesFamiliarity with MLOps and deployment workflows, including packaging, reproducibility, and basic monitoringExperience with TensorFlow or PyTorch; LangChain is a bonusAbility to design original computational problems with clear solutionsProven ability to verify solutions using reproducible Python code and correct outputsStrong written English at C1+ level or equivalentAvailability and Project StructureThis is a project-based opportunity rather than a permanent position. The screening information requests approximately 10 to 20 hours per week during active project phases, while the listing also indicates a 20+ hour weekly time requirement. Confirm the current expected schedule during the application process. Contribute during active project phasesAvailability requested at approximately 10 to 20 hours per week in the project descriptionThe structured listing indicates a 20+ hours per week time requirementFlexible, remote contractor formatWhy Join AI TrainingAI training and data labeling are among the fastest-growing ways to work in technology. Contributors with specialized skills can help shape how state-of-the-art models solve problems, communicate technical information, and support real-world workflows. This role is especially suited to machine learning professionals who want flexible project work while applying their expertise to the development of advanced AI systems. Apply advanced technical knowledge to emerging AI systemsBuild experience in model evaluation and generative AI trainingWork remotely and contribute around other commitmentsCreate an OpenTrain account for free and apply in minutes