Data Science Specialist (AI Trainer)

Location: Remote within the United States of America

Salary: $6–$65 per hour, with the final rate determined by experience, expertise, and geographic location.

Company

hirify.global, by Invisible, provides AI training projects focused on improving the quality and reasoning capabilities of large-scale language models.

What you will do

• Challenge advanced language models with data science scenarios and theoretical questions.
• Evaluate factual accuracy, logical soundness, and model reasoning.
• Analyze supervised and unsupervised learning, regression, model evaluation, feature engineering, anomaly detection, and data pipelines.
• Document reproducible error traces and identify model failure modes.
• Suggest improvements to prompt engineering and evaluation metrics.
• Explain reasoning clearly and demonstrate the steps behind conclusions.

Requirements

• Professional expertise in data science, machine learning, statistical modeling, data engineering, data visualization, natural language processing, time series analysis, deep learning, or algorithm development.
• Strong understanding of supervised learning, unsupervised clustering, regression techniques, model evaluation metrics, feature engineering, anomaly detection, and real-world data pipelines.
• Clear metacognitive communication and ability to show the reasoning behind answers.
• A master's or PhD in data science, computer science, statistics, or a closely related field is ideal.
• Must be located in the United States of America.
• Contract engagement; company-sponsored health insurance and paid time off are not provided.

Nice to have

• Peer-reviewed publications.
• Industry data science projects.
• Experience with cloud platforms.
• Open-source contributions.

Culture & Benefits

• Remote freelance project work.
• Opportunity to contribute expertise to the training of next-generation AI models.
• Contractors provide a secure computer and high-speed internet.
• Health insurance and paid time off are not included.