Data Scientist (Masters)

Data Scientist (Masters) — AI Data Trainer
About The Role
What if your expertise in machine learning, statistical inference, and data engineering could directly shape how the world's most advanced AI reasons through complex problems?
We're looking for skilled data scientists to join Alignerr's network of expert AI trainers — working alongside leading AI research labs to challenge, evaluate, and improve cutting-edge language models on deep technical topics.
This is a fully remote, flexible contract role. No prior AI industry experience required — just a strong command of data science fundamentals and the ability to communicate technical ideas with precision.
Organization: Alignerr
Type: Hourly Contract
Location: Remote
Commitment: 10–40 hours/week
What You'll Do
Design Complex Challenges: Develop advanced data science problems spanning hyperparameter optimization, Bayesian inference, cross-validation strategies, dimensionality reduction, and more — stress-testing model reasoning at the frontier
Author Ground-Truth Solutions: Build rigorous, step-by-step reference solutions including Python/R scripts, SQL queries, and mathematical derivations that serve as the gold standard for model training
Audit AI-Generated Code: Evaluate model outputs using libraries like Scikit-Learn, PyTorch, and TensorFlow — assessing technical accuracy, efficiency, and correctness of data visualizations and statistical summaries
Refine Model Reasoning: Identify logical flaws in AI outputs — such as data leakage, overfitting, or improper handling of imbalanced datasets — and provide structured, actionable feedback that improves how models think
Who You Are
Pursuing or holding a Master's or PhD in Data Science, Statistics, Computer Science, or a quantitative field with heavy emphasis on data analysis
Strong foundational knowledge in core areas such as supervised/unsupervised learning, deep learning, big data technologies (Spark/Hadoop), or NLP
Able to communicate complex algorithmic concepts and statistical results clearly and concisely in written form
Precise and detail-oriented when reviewing code syntax, mathematical notation, and the validity of statistical conclusions
No prior AI training or annotation experience required
Nice to Have
Prior experience with data annotation, data quality assessment, or evaluation systems
Proficiency in production-level data science workflows such as MLOps or CI/CD for models
Familiarity with model evaluation frameworks or benchmarking methodologies
Why Join Us
Work directly with industry-leading AI language models at the cutting edge of the field
Fully remote and flexible — work when and where it suits you, on your own schedule
Freelance autonomy: high agency, global reach, and task-based structure that respects your expertise
Contribute to meaningful work that shapes how AI reasons through the world's hardest technical problems
Potential for ongoing contract renewals as new AI projects launch

Work arrangement
Yes