Toronto, On Chemist Jobs – 36 Openings This Week

Computational Chemist - AI Trainer
DataAnnotation —Toronto, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Bilingual
- Doctoral degree
- Computer Science
- Flexible schedule
Quick apply
Computational Chemist - AI Trainer
DataAnnotation —Etobicoke, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Bilingual
- Doctoral degree
- Computer Science
- Flexible schedule
Quick apply
Quality Control Chemist 1- Afternoon
DECIEM —Etobicoke, ON
- $45,000–$50,000 a year
- Full-time
- Microsoft Word
- Microsoft Excel
- Microsoft Office
- Paid time off
- Employee assistance program
R&I - R&I Associate Chemist
Cosmetica Laboratories Inc. —Toronto, ON
- $50,000–$60,000 a year
- Full-time
- Microsoft Word
- Microsoft Excel
- Microsoft Office
Quick apply
5d
Junior Analytical Chemist
OTI Lumionics Inc. —Mississauga, ON
- $65,000–$90,000 a year
- Full-time
- Microsoft Powerpoint
- Microsoft Word
- Microsoft Excel
6d
R&D Chemist
Apollo Health And Beauty Care —Toronto, ON
- $60,000–$70,000 a year
- Full-time
- Engineering
- Laboratory experience
- Analysis skills
- Dental care
Quick apply
Biotech Analyst - Level 1 - Bioseparations
SGS —Mississauga, ON
- $26–$27 an hour
- Full-time
- Remote
- Bachelor's
- No university degree
- Communication skills
- Dental care
- Paid time off
Quick apply
Analytical Development Senior Chemist (6-month contract)
DECIEM —Toronto, ON
- $80,000–$90,000 a year
- Contract
- Hybrid work
- Doctoral degree
- English
- Communication skills
- Paid time off
- Employee assistance program
Analytical Chemist Level 2
LGC Group —Vaughan, ON
- $47,000–$50,000 a year
- Full-time
- Master's degree
- Analysis skills
- Bachelor's
- Dental care
- Paid time off
Quick apply
Bioanalytical Chemist
WELL Health Technologies Corp —Toronto, ON
- $40,000 a year
- Full-time
- Laboratory experience
- Bachelor's
- In-person
Quick apply
8d
Analyst - Level 1, Raw Material
SGS —Mississauga, ON
- $27–$29 an hour
- Full-time
- Microsoft Powerpoint
- Microsoft Excel
- Microsoft Outlook
- Dental care
- Paid time off
Quick apply
Research Chemist (Drug Product) - Eurofins CDMO Alphora, Inc.
Eurofins Canada BioPharma —Mississauga, ON
- $60,000 a year
- Immediate opening
- Laboratory experience
- Designated paid holidays
- Disability insurance
Quick apply
Stability Development Senior Chemist (6-Month Contract)
DECIEM —Toronto, ON
- $85,000–$90,000 a year
- Contract
- Hybrid work
- Master's degree
- Bachelor's
- Quality Control
- Paid time off
- Employee assistance program
Analytical Chemist II – HPLC/GC (Temporary Contract) - Eurofins Cosmetics & Personal Care, Inc.
Eurofins Canada Cosmetic Testing —Toronto, ON
- $24.04–$26.44 an hour
- Overtime
- Microsoft Word
- Microsoft Excel
- Microsoft Outlook
Quick apply
4d
Formulation Chemist (Drug Product) - Eurofins CDMO Alphora, Inc.
Eurofins Canada BioPharma —Mississauga, ON
- $75,000 a year
- Immediate opening
- Doctoral degree
- Engineering
- Laboratory experience
- Designated paid holidays
- Disability insurance
Quick apply
Quality Control Analyst, Level 1 - Finished Products
SGS —Mississauga, ON
- $27–$28 an hour
- Full-time
- Microsoft Powerpoint
- Microsoft Excel
- Microsoft Outlook
- Dental care
- Paid time off
Quick apply
Process R&D Chemist
ACANTHUS RESEARCH —Mississauga, ON
- Full-time
- Doctoral degree
- Communication skills
- Time management
Biotech Scientist - Chromatography
SGS —Mississauga, ON
- $34–$44 an hour
- Full-time
- Doctoral degree
- Master's degree
- Bachelor's
- Dental care
- Paid time off
Quick apply
Senior Research Chemist (Drug Product) - Eurofins CDMO Alphora, Inc.
Eurofins Canada BioPharma —Mississauga, ON
- $75,000 a year
- Immediate opening
- Doctoral degree
- Laboratory experience
- Master's degree
- Designated paid holidays
- Disability insurance
Quick apply
Analyst, Level 2 - GC (18 Month Contract)
SGS —Markham, ON
- $28–$29 an hour
- Contract
- Bachelor's
- Time management
Quick apply

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chemist jobs near toronto, on

Computational Chemist - AI Trainer

DataAnnotation -
Toronto, ON

Quick apply

Job details

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

Qualifications

Bilingual
Statistics
Doctoral degree
Computer Science
Writing skills
Engineering
Mathematics
English
Google Cloud Platform
Master's degree
AWS
Bachelor's

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 Computational Chemist - 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

chemist jobs in toronto, on

Computational Chemist - AI Trainer

Computational Chemist - AI Trainer

Quality Control Chemist 1- Afternoon

R&I - R&I Associate Chemist

Junior Analytical Chemist

R&D Chemist

Biotech Analyst - Level 1 - Bioseparations

Analytical Development Senior Chemist (6-month contract)

Analytical Chemist Level 2

Bioanalytical Chemist

Analyst - Level 1, Raw Material

Research Chemist (Drug Product) - Eurofins CDMO Alphora, Inc.

Stability Development Senior Chemist (6-Month Contract)

Analytical Chemist II – HPLC/GC (Temporary Contract) - Eurofins Cosmetics & Personal Care, Inc.

Formulation Chemist (Drug Product) - Eurofins CDMO Alphora, Inc.

Quality Control Analyst, Level 1 - Finished Products

Process R&D Chemist

Biotech Scientist - Chromatography

Senior Research Chemist (Drug Product) - Eurofins CDMO Alphora, Inc.

Analyst, Level 2 - GC (18 Month Contract)

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