Mississauga, On Chemist Jobs – 49 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
10d
Senior Air Quality Specialist - Infrastructure
Onterris —Oakville, ON
- Full-time
- Civil engineering
- Engineering
- Business development
Personal Care Ingredient and CMO Liason
Pharmocon LLC —Toronto, ON
- $42 an hour
- Part-time
- Remote
- English
- Bachelor's
- Manufacturing
- Work from home
- Flexible schedule
Quick apply
8d
Junior Analytical Chemist
OTI Lumionics Inc. —Mississauga, ON
- $65,000–$90,000 a year
- Full-time
- Microsoft Powerpoint
- Microsoft Word
- Microsoft Excel
1d
Computational Chemist - AI Trainer
DataAnnotation —Etobicoke, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Bilingual
- Doctoral degree
- Computer Science
- Flexible schedule
Quick apply
10d
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
12h
Quality Control Chemist 1- Afternoon Contract (Brampton)
DECIEM —Brampton, ON
- $45,000–$50,000 a year
- Contract
- Microsoft Word
- Microsoft Excel
- Microsoft Office
- Paid time off
- Employee assistance program
8d
Bioanalytical Chemist
WELL Health Technologies Corp —Toronto, ON
- $40,000 a year
- Full-time
- Laboratory experience
- Bachelor's
- In-person
Quick apply
3d
Medical Isotopes Process Development Co-op Student
Kinectrics —Toronto, ON
- $24.44–$28.11 an hour
- Full-time
- Laboratory experience
- Microsoft Office
- Bachelor's
3d
Senior Scientist, Electrolyte Development
e-Zinc —Mississauga, ON
- $105,000–$125,000 a year
- Full-time
- Data analysis skills
- Master's degree
- Organizational skills
- Paid time off
Quick apply
9d
Forensic Scientist, Toxicology
Ministry of the Solicitor General —Toronto, ON
- $1,655.00–$2,134.54 a week
- Bilingual
- Word processing
- Laboratory experience
11d
Research Scientist/Principal Research Scientist
WELL Health Technologies Corp —Toronto, ON
- $80,000–$100,000 a year
- Full-time
- Doctoral degree
- Master's degree
- Bachelor's
Quick apply
10d

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Computational Chemist - AI Trainer

DataAnnotation -
Toronto, ON

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Job details

Contract | Fixed term contract
$50.00–$140.56 an hour
10 days ago

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.

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Refine Your Search

chemist jobs in mississauga, on

Computational Chemist - AI Trainer

Senior Air Quality Specialist - Infrastructure

Personal Care Ingredient and CMO Liason

Junior Analytical Chemist

Computational Chemist - AI Trainer

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

Quality Control Chemist 1- Afternoon Contract (Brampton)

Bioanalytical Chemist

Medical Isotopes Process Development Co-op Student

Senior Scientist, Electrolyte Development

Forensic Scientist, Toxicology

Research Scientist/Principal Research Scientist

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