DataAnnotation is seeking a Senior Data Scientist - AI Trainer to support the training of AI models focused on quantitative reasoning. In this fully remote contract role, you will review AI-generated quantitative work, build and solve training problems, and provide feedback that helps systems improve how they analyze data and scientific scenarios.

The position is based in Illinois (remote) and is paid on an hourly basis. Work is available for qualified candidates in the US, Canada, UK, Ireland, Australia, and New Zealand.

Key Responsibilities

Review AI-generated quantitative work, including statistical analysis, predictive modeling, scientific reasoning, and data-driven insights, checking for both technical accuracy and real-world validity.
Create and solve quantitative problems used for training and benchmarking AI systems across areas such as forecasting, experimental analysis, optimization, and statistical inference.
Produce clear technical explanations and maintain well-documented analytical code.
Deliver feedback that directly influences the next generation of AI models built for quantitative reasoning.

Required Qualifications

3+ years of hands-on experience in a quantitative role or research environment, such as data science, statistics, economics, finance, physics, biology, epidemiology, operations research, or a related field.
Coding experience is required, including the ability to write and review analytical code end-to-end.
Practical experience with statistical methods, predictive modeling, and experiment design, including examples such as A/B testing, hypothesis testing, regression, classification, and time-series forecasting.
Fluency in English (native or bilingual level) with strong writing skills.
A bachelor’s degree in a quantitative field is preferred (Statistics, Computer Science, Mathematics, Engineering, or similar). A Master’s or PhD is a plus.
Relevant credentials are a plus, such as Kaggle Competition ranking, AWS/GCP ML certifications, or equivalent demonstrated expertise.

Compensation and Employment Details

Job type: contract
Location: Illinois (remote)
Pay: USD 50 to 100 per hour
Some projects may include bonus rates.

Assessment and Onboarding

After you sign up for an account, you will take a short assessment (serving as the company’s interview process). If you pass, you will receive an email confirmation and paid work will become available on the platform.

Additional Notes

Payment is made via PayPal.
The company will never ask applicants for money.
This role is only available to candidates in the US, Canada, UK, Ireland, Australia, and New Zealand.

Benefits

Fully remote: work from anywhere in the US, Canada, UK, Ireland, Australia, and New Zealand.
Flexible schedule: choose which projects you take on and when you work, using your own computer from home.
Competitive pay: projects are paid hourly at USD 50 to 100 per hour, with bonus rates available on some projects.
Impact: help shape AI systems designed to reason about data and analytics.

Senior Data Scientist - AI Trainer