MercorPosted 28 Aug 2026

ML Challenge Task Auditor

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Pay

$70–90/hr

Work

Remote · Contract · 40 hrs/wk · Remote — United States

Experience

3+ years

Eligibility

USA

Field

Data & machine learning

Skills

Applied Machine LearningExperiment DesignModel SelectionHyperparameter TuningEvaluation MethodologyData Leakage DetectionMetric Gaming DetectionCross-ValidationPyTorchTensorFlowscikit-learnXGBoostML Result ReproductionKagglePeer ReviewTask Grading

About this role

Evaluate the quality, correctness, and methodological rigor of applied machine-learning tasks used to train and evaluate a frontier AI lab's models. You'll assess experiment design, model-selection reasoning, and evaluation methodology — and provide clear, rubric-based written feedback.

Basic Qualifications • 3+ years hands-on applied/experimental ML (experiment design, model selection, hyperparameter tuning, evaluation methodology) • Strong grasp of data-quality rigor: leakage detection, metric gaming, and train/test/CV hygiene • Proficiency with standard ML frameworks (PyTorch, TensorFlow, scikit-learn, XGBoost) • Ability to critique ML claims against evidence and reproduce results

Preferred Qualifications • Competition / benchmark experience (e.g., Kaggle) • Graduate research or publication record in applied ML • Prior task-grading or peer-review experience

Note: this role evaluates applied/experimental ML rigor — it is not an LLM-application-building or MLOps role.

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