Data Scientist (Masters)

Alignerr Corp.; New Zealand; Remote; NZD 148,000 - 295,000; Part time

Job summary

Alignerr is seeking a Data Scientist (Masters) or PhD professional to act as an AI Data Trainer. This is a fully remote, hourly contract role offering 10–40 hours per week, with a focus on challenging, auditing, and refining cutting-edge AI models.

You will design advanced data science problems, author precise step-by-step solutions, and audit AI-generated code across Python, R, and SQL while working independently on your own schedule.

Qualifications

• Must hold Masters or PhD in Data Science, Statistics, Computer Science, or a quantitative discipline.
• Strong foundation in supervised/unsupervised learning, deep learning, statistical inference, and model evaluation.

Responsibilities

• Design advanced data science challenges to test frontier AI models.
• Author ground-truth solutions with Python/R scripts and SQL queries.
• Audit AI-generated code for accuracy and efficiency using ML libraries.
• Identify logic gaps in AI reasoning and document actionable feedback.
• Work independently with task-based assignments on your schedule.

Skills

Python

R

SQL

ML fundamentals

Statistical inference

Data analysis

Independent work

Communication

Education

Masters/PhD in Data Science or related

Tools

Scikit-Learn

PyTorch

TensorFlow

Spark

Hadoop

Job description

Data Scientist (Masters) — AI Data Trainer

What if your expertise in machine learning, statistical inference, and data engineering could directly shape how the world's most powerful AI systems reason and solve problems? We're looking for advanced data scientists to challenge, audit, and refine cutting-edge AI models — exposing their blind spots, correcting their reasoning, and helping build AI that genuinely understands the science behind the code.

This is a fully remote, flexible contract role designed for Masters and PhD-level data scientists who want to do meaningful, intellectually stimulating work on their own schedule.

• Organization: Alignerr
• Type: Hourly Contract
• Location: Remote
• Commitment: 10–40 hours/week

What You'll Do

• Design Advanced Challenges: Create rigorous, domain-specific data science problems spanning hyperparameter optimization, Bayesian inference, cross-validation strategies, dimensionality reduction, and more — problems sophisticated enough to genuinely test the limits of frontier AI models
• Author Ground-Truth Solutions: Develop precise, step-by-step technical solutions — including Python/R scripts, SQL queries, and mathematical derivations — that serve as authoritative reference answers
• Audit AI-Generated Code: Evaluate model outputs using libraries like Scikit-Learn, PyTorch, and TensorFlow for technical accuracy, computational efficiency, and methodological soundness
• Identify Reasoning Failures: Pinpoint and document logical flaws in AI reasoning — data leakage, overfitting, improper handling of imbalanced datasets, or flawed statistical conclusions — and provide structured feedback that directly improves model behavior
• Work Independently: Complete task-based assignments asynchronously, entirely on your own schedule

Who You Are

• Currently pursuing or holding a Masters or PhD in Data Science, Statistics, Computer Science, or a quantitative discipline with heavy emphasis on data analysis
• Deeply grounded in core data science fundamentals: supervised and unsupervised learning, deep learning, statistical inference, and model evaluation
• Experienced with Python, R, SQL, and standard ML libraries (Scikit-Learn, PyTorch, TensorFlow, or similar)
• Able to communicate complex algorithmic concepts and statistical findings clearly and precisely in writing
• Exceptionally detail-oriented — you catch syntax errors, mathematical inconsistencies, and flawed statistical conclusions without being prompted
• Self-motivated and reliable when working independently without supervision
• No prior AI training or annotation experience required

Nice to Have

• Familiarity with big data technologies such as Spark or Hadoop
• Experience in NLP or large-scale model evaluation
• Background in MLOps, CI/CD pipelines for ML, or production-level data science workflows
• Prior experience with data annotation, data quality assurance, or evaluation systems

Why Join Us

• Work directly with industry-leading AI research labs on genuinely frontier problems
• Fully remote and flexible — work when and where it suits you, with no fixed schedule
• Freelance autonomy: high agency, task-based structure, and global reach
• Engage deeply with state-of-the-
  art language and reasoning models in ways most data scientists never get to
• Potential for ongoing contract renewals as new AI projects launch