Data Scientist (Masters)
AI
Alignerr seeks a Data Scientist (Masters) to work as an AI Data Trainer, designing complex data science challenges, authoring ground-truth solutions, auditing AI-generated code, and improving AI reasoning. This is a fully remote, flexible hourly contract role requiring a Master's or PhD in a quantitative field and strong foundational data science knowledge.
What you'll do
- Design Advanced Challenges — Craft complex, domain-specific data science problems spanning hyperparameter optimization, Bayesian inference, cross-validation strategies, dimensionality reduction, and more
- Author Ground-Truth Solutions — Build rigorous, step-by-step technical solutions — including Python/R scripts, SQL queries, and mathematical derivations — that serve as the gold standard for AI evaluation
- Audit AI-Generated Code — Evaluate AI outputs across libraries like Scikit-Learn, PyTorch, and TensorFlow for correctness, efficiency, and technical soundness
- Sharpen AI Reasoning — Identify logical failures in AI outputs — data leakage, overfitting, improper handling of imbalanced datasets — and provide structured, actionable feedback to improve how models reason through problems
What you need
Must-have
Machine LearningStatistical InferenceData EngineeringPythonRSQLScikit-LearnPyTorch
Nice-to-have
Data AnnotationData Quality EvaluationAI Evaluation SystemsMLOpsCI/CDModel InterpretabilityFairness TestingRobustness Testing
Soft skills
CommunicationAttention to DetailAnalytical ThinkingProblem Solving
Data ScientistAI TrainerMachine LearningContractRemotePythonSQLPyTorchTensorFlow