Oldcastle, On Ai trainer Jobs – 21 Openings This Week

Principal Data Scientist - AI Trainer
DataAnnotation —Windsor, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Doctoral degree
- Computer Science
- Writing skills
- Flexible schedule
Quick apply
Economic Analyst - AI Trainer
DataAnnotation —Windsor, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Doctoral degree
- Computer Science
- Writing skills
- Flexible schedule
Quick apply
Automation Technician - AI Trainer
DataAnnotation —Windsor, ON
- From $60 an hour
- Contract
- Remote
- Engineering
- English
- Bachelor's
Quick apply
Senior Mechanical Design Engineer - AI Trainer
DataAnnotation —Oldcastle, ON
- From $60 an hour
- Contract
- Remote
- Engineering
- English
- Bachelor's
Quick apply
Safety Trainer
Cooper Equipment Rentals —Ontario
- $80,000–$90,000 a year
- Full-time
- Microsoft Powerpoint
- Microsoft Word
- Microsoft Outlook
Personal Trainer
Crunch Fitness Canada —Windsor, ON
- $18 an hour
- Part-time
- Management
- Cleaning
- Designated paid holidays
- Flexible schedule
Quick apply
Real Estate Sales Representative
Royal LePage Real Estate —Essex, ON
- $50,000–$150,000 a year
- Sales
Quick apply
Technical Support Supervisor - Automotive
EBlock Inc. —Canada
- $60,000–$80,000 a year
- Full-time
- Remote
- Data analysis skills
- Analysis skills
- Human resources
- Dental care
- Paid time off

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Machine Learning Scientist - AI Trainer
DataAnnotation —Whitby, ON
A bachelor's degree in a quantitative field preferred (Statistics, Computer Science, Mathematics, Engineering, or similar); an advanced degree (Master’s or PhD)…
$50.00–$140.56 an hour
Quick apply
Forecasting Analyst - AI Trainer
DataAnnotation —Oshawa, ON
A bachelor's degree in a quantitative field preferred (Statistics, Computer Science, Mathematics, Engineering, or similar); an advanced degree (Master’s or PhD)…
$50.00–$140.56 an hour
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Principal Data Scientist - AI Trainer

DataAnnotation -
Windsor, ON

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Job details

Contract | Fixed term contract
$50.00–$140.56 an hour

Qualifications

Statistics
Predictive analysis
Statistics
Doctoral degree
Computer Science
Predictive modeling analysis
Writing skills
Engineering
Mathematics
English
Master's degree
Bachelor's
Quantitative modelling analysis
A/B testing
Data science
AI
Performing statistical data analysis

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 at $50 to $100 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:

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 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 preferred (Statistics, Computer Science, Mathematics, Engineering, or similar); an advanced degree (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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ai trainer jobs in oldcastle, on

Principal Data Scientist - AI Trainer

Economic Analyst - AI Trainer

Automation Technician - AI Trainer

Senior Mechanical Design Engineer - AI Trainer

Safety Trainer

Personal Trainer

Real Estate Sales Representative

Technical Support Supervisor - Automotive

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