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Mercor · Remote

ML Challenge Task Auditor

Remote — United States Eligible in United States $70 - $90 / hour Open until December 6, 2026
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Role brief

Job description

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.

Practice

Interview practice

Interview Coach
Realtime practice tailored to this job. Voice or video + CV (optional).
Full screen

Mic required. Video is optional.

Prep checklist

  • Match your strongest evidence to this role’s domain.
  • Prepare one impact story, one troubleshooting story, and one collaboration story.
  • Use the interview coach before applying if the role is a strong fit.
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