Toronto, On Science Jobs – 631 Openings This Week

Academic Researcher - AI Trainer
DataAnnotation —Concord, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Doctoral degree
- Computer Science
- Writing skills
- Flexible schedule
Quick apply
Applied Scientist - AI Trainer
DataAnnotation —Concord, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Doctoral degree
- Computer Science
- Writing skills
- Flexible schedule
Quick apply
Lab Supervisor
Confidential —Toronto, ON
- $80,000–$100,000 a year
- Full-time
- Writing skills
- Laboratory experience
- Analysis skills
- Dental care
- Vision care
Quick apply
Medical Lab Technologist (OPSEU LAB) - Specimen Management (ExamOne) - Temporary Full Time - Float Shifts - Toronto, ON
LifeLabs —Toronto, ON
- $34.43–$46.38 an hour
- Immediate opening
- Microsoft Office
- Analysis skills
- Bachelor's
- Dental care
- Life insurance
Business Development Manager - Mining & Environmental Laboratory Services (Eastern Canada)
Bureau Veritas —Ontario
- Full-time
- CRM software
- Customer service
- Engineering
Machine Learning Scientist - AI Trainer
DataAnnotation —Thornhill, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Doctoral degree
- Computer Science
- Writing skills
- Flexible schedule
Quick apply
Paper Lab Technician
Packaging Technologies Inc —Mississauga, ON
- $50,000–$52,000 a year
- Full-time
- Heavy lifting
- Laboratory experience
- Math
- Wellness program
- Tuition reimbursement
Quick apply
Clinical Dietitian, Moose Factory, ON
Weeneebayko Area Health Authority —Ontario
- $41.94–$49.97 an hour
- Full-time
- Bilingual
- Customer service
- Patient care
- Disability insurance
- Dental care
Quick apply
English Math Science, French teacher tutor
Education Center —Mississauga, ON
- $20–$40 an hour
- Part-time
- Bilingual
- English
- Math
Quick apply
Math & Science Program Instructor, Outreach
Elephant Thoughts Educational Outreach —Ontario
- From $1,000 a week
- Temporary
- Google Suite
- English
- Research
- Employee assistance program
Quick apply
Quality Technologist
Caldic North America —Mississauga, ON
- $45,000–$55,000 a year
- Contract
- ERP systems
- Laboratory experience
- Microsoft Office
Quick apply
Sr. Manager, Physical Design Engineering, Annapurna Labs
Amazon Development Centre Canada ULC —Toronto, ON
- $179,800–$300,200 a year
- Full-time
- Profit sharing
- Dental care
2d
Clinical Trial Manager
York dermatology clinic & RC —Richmond Hill, ON
- $38–$42 an hour
- Full-time
- Microsoft Excel
- Research
- Supervising experience
- Store discount
- Dental care
Quick apply
GRADE 9-12 Math and Science Tutors
The Math Guru —Toronto, ON
- $22–$27 an hour
- Part-time
- High school diploma or GED
- Math
- Experience working with children
Quick apply
Food Safety Culture & Compliance Specialist
Embassy Ingredients —Brampton, ON
- $70,000–$90,000 a year
- Full-time
- Bachelor's
- No university degree
- Quality Control
- Wellness program
- Disability insurance
Quick apply
French and Science Tutors
Beaver Creek Kids Club —Richmond Hill, ON
- $20–$25 an hour
- Part-time
- Bilingual
- English
- Math
Quick apply
Medical Lab Technologist (OPSEU LAB), Microbiology
LifeLabs —Toronto, ON
- $34.43–$46.38 an hour
- Part-time
- Microsoft Office
- Analysis skills
- Bachelor's
- Dental care
- Life insurance
Medical Laboratory Educational Technologist (North York Campus)
Anderson College of Health, Business & Technology —North York, ON
- $30–$40 an hour
- Full-time
- Microsoft Powerpoint
- Microsoft Word
- Inventory control
- Dental care
Quick apply
10d
High School Tutor - PHYSICS, CHEMISTRY, MATH-ADV FUNC & CALCULUS
Ican Education Castlemore —Brampton, ON
- $18–$19 an hour
- Part-time
- Writing skills
- High school diploma or GED
- Bachelor's
- Flexible schedule
Quick apply
Technical Lead, Formulation & Product Development
Empack Spraytech Inc. —Brampton, ON
- $60,000–$70,000 a year
- Full-time
- Engineering
- Bachelor's
- Mentoring
Quick apply

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Academic Researcher - AI Trainer

DataAnnotation -
Concord, ON

Quick apply

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
Research
Master's degree
Bachelor's
Quantitative modelling analysis
A/B testing
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 Academic Researcher - 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

Refine Your Search

science jobs in toronto, on

Academic Researcher - AI Trainer

Applied Scientist - AI Trainer

Lab Supervisor

Medical Lab Technologist (OPSEU LAB) - Specimen Management (ExamOne) - Temporary Full Time - Float Shifts - Toronto, ON

Business Development Manager - Mining & Environmental Laboratory Services (Eastern Canada)

Machine Learning Scientist - AI Trainer

Paper Lab Technician

Clinical Dietitian, Moose Factory, ON

English Math Science, French teacher tutor

Math & Science Program Instructor, Outreach

Quality Technologist

Sr. Manager, Physical Design Engineering, Annapurna Labs

Clinical Trial Manager

GRADE 9-12 Math and Science Tutors

Food Safety Culture & Compliance Specialist

French and Science Tutors

Medical Lab Technologist (OPSEU LAB), Microbiology

Medical Laboratory Educational Technologist (North York Campus)

High School Tutor - PHYSICS, CHEMISTRY, MATH-ADV FUNC & CALCULUS

Technical Lead, Formulation & Product Development

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