Join DataAnnotation as a Machine Learning Engineer - AI Trainer to evaluate and help train AI systems focused on quantitative reasoning.

Review AI-generated quantitative outputs, including statistical analysis, predictive modeling, scientific reasoning, and data-driven insights, for technical accuracy and real-world validity
Create and solve quantitative problems used to train and benchmark AI systems across forecasting, experimental analysis, optimization, and statistical inference
Produce clear technical explanations alongside well-documented analytical code
Deliver feedback that informs and improves the next generation of AI models for quantitative reasoning tasks

2+ years of hands-on experience in a quantitative role or research environment (data science, statistics, economics, finance, physics, biology, epidemiology, operations research, or related)
Coding experience required, with comfort writing and reviewing 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
English fluency (native or bilingual level) with strong writing skills
Bachelor’s degree in a quantitative field preferred (Statistics, Computer Science, Mathematics, Engineering, or similar); master’s or PhD is a plus
Relevant credentials are a plus, such as Kaggle Competition ranking or AWS/GCP ML certifications (or equivalent demonstrated expertise)

Fully remote: work from anywhere in the US, Canada, UK, Ireland, Australia, and New Zealand
Flexible schedule: choose which projects to take on and when you work
Competitive pay: paid hourly; up to $60 USD per hour for strong performance (salary range listed: USD 50 - 100 per hourly)
Impact: help shape AI systems that reason about data and analytics

Payment method: PayPal
No money will be requested from applicants
This role is available only to candidates located in the US, Canada, UK, Ireland, Australia, and New Zealand

Machine Learning Engineer - AI Trainer

Job Description