Kitchener On Scientist Jobs – 19 Openings This Week

Senior Research Scientist - AI Trainer
DataAnnotation —Cambridge, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Doctoral degree
- Computer Science
- Writing skills
- Flexible schedule
Quick apply
Children's Science Presenter
Mad Science of Hamilton & Kitchener —Kitchener-Waterloo, ON
- From $40 an hour
- Part-time
- CPR Certification
- Experience working with children
- First Aid Certification
Quick apply
1d
Engineer / Scientist - Environmental Noise & Vibration
Fuze HR Solutions Inc. —Guelph, ON
- $98,000–$125,000 a year
- Full-time
- Engineering
- Bachelor's
- Python
Quick apply
Lead Researcher
Water Technologies —Guelph, ON
- $80,000–$100,000 a year
- Full-time
- Doctoral degree
- Engineering
- Laboratory experience
- Disability insurance
- Dental care
Quick apply
9d
Data scientist
Palitronica —Waterloo, ON
- $100,000–$125,000 a year
- Azure
- Research
- Software development
Senior Data Scientist
Palitronica —Waterloo, ON
- $125,000–$165,000 a year
- Mentoring
- Python
Science Graduate, Environmental
GHD —Waterloo, ON
- Hybrid work
- Engineering
- Microsoft Office
- Master's degree
2d
AI Applied Scientist
Verily —Waterloo, ON
- $139,000–$156,500 a year
- Full-time
- Computer Science
- No university degree
- Software development
Communications Specialist II - Faculty of Science
University of Waterloo —Waterloo, ON
- $73,695.42–$92,119.28 a year
- Full-time
- Marketing
- Research
- Analysis skills
Staff AI Data Scientist
Verily —Waterloo, ON
- $184,000–$206,000 a year
- Full-time
- Doctoral degree
- Computer Science
- No university degree
Data Scientist
ATS Automation Tooling Systems Inc. —Cambridge, ON
- $88,000–$121,000 a year
- Azure
- Computer Science
- Engineering
- Employee stock purchase plan
- Dental care
LC Analytical Chemistry Scientist
Certified Group —Kitchener, ON
- $85,000–$110,000 a year
- Doctoral degree
- Maintenance
- English
Quick apply
Mass-Spec Analytical Chemistry Scientist
Certified Group —Kitchener, ON
- $85,000–$110,000 a year
- Doctoral degree
- Maintenance
- English
Quick apply
Environmental Noise and Vibration Senior Engineer/Scientist
Rowan Williams Davies Irwin (RWDI) —Guelph, ON
- $98,000–$125,000 a year
- Full-time
- Writing skills
- Engineering
- Bachelor's
Quick apply
Senior Data Scientist
Co-operators General Insurance Company —Guelph, ON
- $83,774–$133,700 a year
- Hybrid work
- Computer Science
- Engineering
- English
- Disability insurance
- Dental care
Quick apply
8d
Air Quality Scientist
RWDI —Guelph, ON
- $50,000–$85,000 a year
- Full-time
- Writing skills
- Engineering
- Bachelor's
Quick apply
3d
Visiting Researchers Program
Perimeter Institute for Theoretical Physics —Waterloo, ON
- Research
Senior AI Data Scientist
Biocode Ai —Canada
- Full-time
- Hybrid work
- Master's degree
- SQL
- Bachelor's
- Dental care
- Tuition reimbursement
Quick apply

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Children's Science Presenter
Mad Science of Hamilton & Kitchener —Kitchener-Waterloo, ON
Enjoy teaching children the fascinating wonders of science!. A part-time employee will be facilitating 40 to 60 minute school day and after school enrichment…
From $40 an hour
Quick apply
1d
Children's Science Presenter
Mad Science of Hamilton & Kitchener —Hamilton, ON
Enjoy teaching children the fascinating wonders of science!. A part-time employee will be facilitating 40 to 60 minute school day and after school enrichment…
From $40 an hour
Quick apply
12d

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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
Research Data Scientist - AI Trainer
DataAnnotation —Aurora, 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

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Senior Research Scientist - AI Trainer

DataAnnotation -
Cambridge, 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 Senior Research 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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scientist jobs in kitchener on

Senior Research Scientist - AI Trainer

Children's Science Presenter

Engineer / Scientist - Environmental Noise & Vibration

Lead Researcher

Data scientist

Senior Data Scientist

Science Graduate, Environmental

AI Applied Scientist

Communications Specialist II - Faculty of Science

Staff AI Data Scientist

Data Scientist

LC Analytical Chemistry Scientist

Mass-Spec Analytical Chemistry Scientist

Environmental Noise and Vibration Senior Engineer/Scientist

Senior Data Scientist

Air Quality Scientist

Visiting Researchers Program

Senior AI Data Scientist

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