St. Catharines, On Mathematics Jobs – 34 Openings This Week

Data Science Manager - AI Trainer
DataAnnotation —St. Catharines, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Bilingual
- Doctoral degree
- Computer Science
- Flexible schedule
Quick apply
10d
Operations Research Analyst - AI Trainer
DataAnnotation —St. Catharines, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Bilingual
- Doctoral degree
- Computer Science
- Flexible schedule
Quick apply
10d
Brake Press Operator
High Strength Plates & Profiles Inc. —Thorold, ON
- $28–$38 an hour
- Full-time
- Math
- Power tools
- In-person
- Dental care
- Employee assistance program
Quick apply
1d
Cognitive Scientist - AI Trainer
DataAnnotation —Beamsville, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Bilingual
- Doctoral degree
- Computer Science
- Flexible schedule
Quick apply
10d
Structural Welder/Fitter
Steelcon Fabrication Inc. —Welland, ON
- Full-time
- Heavy lifting
- Math
- Welding
- Dental care
- Paid time off
Quick apply
18h
AI Annotation Specialist Data Science - AI Trainer
DataAnnotation —St. Catharines, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Bilingual
- Doctoral degree
- Computer Science
- Flexible schedule
Quick apply
10d
Production Operator (Builder)
TURKSTRA LUMBER —Smithville, ON
- $17.60–$24.00 an hour
- Full-time
- Forklift
- Math
- Construction experience
- Profit sharing
- Wellness program
Quick apply
Production Operator (Builder) - Afternoon Shift
TURKSTRA LUMBER —Smithville, ON
- $17.60–$24.00 an hour
- Full-time
- Forklift
- Math
- Construction experience
- Profit sharing
- Wellness program
Quick apply
Estate Supervisor - KEW Estate Winery
Arterra Wines Canada —Beamsville, ON
- $23.08 an hour
- Full-time
- Microsoft Word
- Hospitality
- Microsoft Excel
Baker
Farm Boy Inc. —St. Catharines, ON
- From $17.80 an hour
- Weekends as needed
- Bilingual
- Customer service
- English
Quick apply
Driver/ Laborer
TWO MEN AND A TRUCK® —St. Catharines, ON
- From $18.50 an hour
- Weekends only
- Customer service
- English
- Math
Quick apply
Pharmacy Assistant
Boggio Family of Pharmacies —Virgil, ON
- $18–$22 an hour
- Full-time
- Customer service
- Math
- Patient care
- Dental care
Quick apply
9d
Director, Group Underwriting
Medavie —Ontario
- $120,335–$170,000 a year
- Full-time
- Remote
- Bilingual
- Microsoft Excel
- Management
- Dental care
14d
Bilingual Senior Group Underwriter (REMOTE)
Medavie —Ontario
- $91,831–$101,014 a year
- Remote
- Bilingual
- Microsoft Word
- Microsoft Excel
- Disability insurance
- Dental care
14d
Online High School Math Tutor
Empower Tutoring —St. Catharines, ON
- $20–$22 an hour
- Part-time
- Bilingual
- English
- High school diploma or GED
- Flexible schedule
Quick apply
Program Evaluation and Data Advisor
Niagara Region —Thorold, ON
- $78,810–$92,710 a year
- Temporary
- Hybrid work
- Computer science
- Databases
- SQL
- Employee assistance program
4h
Accounting Specialist
Lailey Winery —Niagara-on-the-Lake, ON
- $22 an hour
- Part-time
- Hospitality
- Math
- QuickBooks
Quick apply
1d
Part-Time Math & Science Tutor
Oxford Learning Centres, Inc. —St. Catharines, ON
- $19 an hour
- Part-time
- English
- Math
- Bachelor's
Quick apply
Senior Analyst, Marketing
Meridian Credit Union —St. Catharines, ON
- $59,800–$89,800 a year
- Hybrid work
- Computer science
- Microsoft Excel
- Computer Science
Special Education Tutor – Elementary Level (St. Catharines, Niagara Falls)
Tutor Doctor —Niagara Falls, ON
- $21–$24 an hour
- Part-time
- CPR Certification
- Math
- Experience working with children
- Flexible schedule
Quick apply

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Data Science Manager - AI Trainer

DataAnnotation -
St. Catharines, ON

Quick apply

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 Data Science Manager - 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

mathematics jobs in st. catharines, on

Data Science Manager - AI Trainer

Operations Research Analyst - AI Trainer

Brake Press Operator

Cognitive Scientist - AI Trainer

Structural Welder/Fitter

AI Annotation Specialist Data Science - AI Trainer

Production Operator (Builder)

Production Operator (Builder) - Afternoon Shift

Estate Supervisor - KEW Estate Winery

Baker

Driver/ Laborer

Pharmacy Assistant

Director, Group Underwriting

Bilingual Senior Group Underwriter (REMOTE)

Online High School Math Tutor

Program Evaluation and Data Advisor

Accounting Specialist

Part-Time Math & Science Tutor

Senior Analyst, Marketing

Special Education Tutor – Elementary Level (St. Catharines, Niagara Falls)

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