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Principal Data Scientist - AI Trainer
DataAnnotation —San Mateo, CA
- $40 - $60 an hour
- Part-time
- Remote
- Computer Science
- English
- Master's degree
- Flexible schedule
Quick Apply
Physicist - AI Trainer
DataAnnotation —Berkeley Heights, NJ
- $40 - $60 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
Quick Apply
Data Science & Analytics
Blocksi —Palo Alto, CA
- Entry level
Entry Level Data Scientist
Definer Inc —Minneapolis, MN
- Full-time
- SQL
- Math
- AI
Associate Engineer, Data Science
Nagarro —Remote
- Entry level
Quick Apply
Data Scientist
AI Square —Remote
- Remote
- Senior level
Data Science Analyst
Banyan Data Services —San Jose, CA
- Computer Science
- Mid-level
- SQL
- Paid parental leave
- Work from home
Engineer III - EDI
Inland Empire Health Plan —Rancho Cucamonga, CA
- $118,601.60 - $157,144.00 a year
- Full-time
- Hybrid work
- Microsoft Excel
- 6 years
- HIPAA
- Paid holidays
- Disability insurance
Data Analyst — Game Analytics (Chinese Mandarin Speaker)
Bitus Labs —Irvine, CA
- From $80,000 a year
- Full-time
- Computer Science
- Office
- 3 years
- Health insurance
- Dental insurance
Quick Apply
Data Scientist II
SCIENCE & TECHNOLOGY CORP —Aberdeen Proving Ground, MD
- Full-time
- Computer Science
- English
- Mid-level
Geotechnical Research Engineer - Level 2
AGR, LLC —McLean, VA
- $85,000 - $100,000 a year
- Full-time
- Background check
- Civil engineering
- Doctoral degree
- Health insurance
- 401(k)
Quick Apply
ML Software Developer II
SCIENCE & TECHNOLOGY CORP —Aberdeen Proving Ground, MD
- $85,000 - $110,000 a year
- Full-time
- Computer Science
- English
- Mid-level
- Paid holidays
- Disability insurance
Simulation Engineer - AI Trainer
DataAnnotation —Boston, MA
- $40 - $60 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
Quick Apply
Contingent Position - Environmental Protection Agency (EPA), Environmental Coordinator
GES, Inc. —Huntsville, AL
- $50,000 - $60,000 a year
- Full-time
- Hybrid work
- Background check
- Customer service
- Bachelor of Science
- Health insurance
- Dental insurance
Quick Apply
Clinical Data Scientist
RedSail Technologies, LLC —Spartanburg, SC
- $130,000 - $160,000 a year
- Hybrid work
- Computer Science
- HIPAA
- Office
- Health insurance
- Dental insurance
Embedded Data Scientist
Wasatch Photonics —Morrisville, NC
- $90,000 - $120,000 a year
- Part-time
- Hybrid work
- Computer Science
- Mid-level
- Bachelor's degree
- Health insurance
- Dental insurance
Quick Apply
Senior Artificial Intelligence (AI) Developer
Amtelco —McFarland, WI
- Full-time
- Hybrid work
- Background check
- Azure
- Computer Science
- Health savings account
- Health insurance
Quick Apply
Marketing Data Analyst - Senior
Strand Marketing —Hermosa Beach, CA
- $120,000 - $160,000 a year
- Full-time
- Hybrid work
- Background check
- 7 years
- Office
- Health insurance
- Dental insurance
Quick Apply
AI/ML Scientist / Engineer
Liberty Personnel Services, Inc, LP87969 —Plainsboro, NJ
- Full-time
- Anatomy knowledge
- Master's degree
- Analysis skills
Quick Apply
VP, Data & AI
LCS —Des Moines, IA
- $171,000 - $214,000 a year
- Full-time
- Background check
- Azure
- Presentation skills
- Paid parental leave
- Health insurance

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Principal Data Scientist - AI Trainer

DataAnnotation -
San Mateo, CA

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Job Details

Part-time | Full-time | Contract
$40 - $60 an hour

Benefits

Flexible schedule

Qualifications

Software coding
Design of experiments
English
Providing code feedback

Full Job Description

DataAnnotation is committed to creating quality AI. Help train AI chatbots while gaining the flexibility of remote work and choosing your own schedule.

We are looking for an existing Principal Data Scientist - AI Trainer to help train AI models. AI models are increasingly capable of performing complex analytical and scientific reasoning — but these systems still need practitioners with real-world quantitative experience to validate whether the outputs actually hold up in practice. That's where you come in.

You'll work closely with state-of-the-art AI models on tasks like evaluating AI-generated quantitative analysis, solving technical problems, and providing feedback that directly shapes how these systems reason about data, models, and scientific problems. Whether your background is in data science, astrophysics, economics, biostatistics, operations research, or any other quantitative field, if you think rigorously about data and models, your skills are directly applicable here. You can fit this work alongside a full-time role, or treat it as your primary focus, choosing projects and schedules that align with your availability and goals.

To get started, once you sign up for an account, you'll take a short assessment (this serves as our version of an interview). If you pass, you'll receive an email confirmation, and paid work will become available on our platform.

Advantages of contracting with us:

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, on your own computer, from the comfort of your own home.
Competitive pay: projects are paid hourly, up to $60 USD per hour, with bonus rates available on some projects.
Impact: help shape the future of AI systems built to reason about data and analytics.

Responsibilities:

Evaluate AI-generated quantitative work, including statistical analysis, predictive modeling, scientific reasoning, and data-driven insights, for technical accuracy and real-world validity.
Design and solve quantitative problems used to train and benchmark AI systems, spanning areas like forecasting, experimental analysis, optimization, and statistical inference.
Write clear technical explanations and well-documented analytical code.
Provide feedback that directly shapes the next generation of AI models built for quantitative reasoning.

Qualifications:

2+ 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 any adjacent field.
Some coding experience required, with comfort writing and reviewing analytical code end-to-end.
Practical experience with statistical methods, predictive modeling, and experiment design (e.g., A/B testing, hypothesis testing, regression, classification, 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 (e.g., Kaggle Competition ranking, AWS/GCP ML certifications, or equivalent demonstrated expertise).

Note: Payment is made via PayPal. We will never ask for any money from you. This job is only available to those in the US, Canada, UK, Ireland, Australia, and New Zealand.

Quick Apply

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data science jobs

Principal Data Scientist - AI Trainer

Physicist - AI Trainer

Data Science & Analytics

Entry Level Data Scientist

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Data Scientist

Data Science Analyst

Engineer III - EDI

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ML Software Developer II

Simulation Engineer - AI Trainer

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Clinical Data Scientist

Embedded Data Scientist

Senior Artificial Intelligence (AI) Developer

Marketing Data Analyst - Senior

AI/ML Scientist / Engineer

VP, Data & AI

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