St. Catharines On Machine learning engineer Jobs – 165 Openings This Week

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
14d
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
14d
Manager of Facilities & Maintenance - Marriott on the Falls Hotel
Canadian Niagara Hotels Group —Niagara Falls, ON
- $70,000–$90,000 a year
- Weekends as needed
- Maintenance
- Hotel
- HVAC
- Dental care
Quick apply
Facilities Maintenance Quality Supervisor - Sheraton Fallsview Hotel
Canadian Niagara Hotels —Niagara Falls, ON
- $26–$30 an hour
- Weekends as needed
- Maintenance
- Hotel
- Plumbing
- Dental care
Quick apply
Corporate Accountant
Canadian Niagara Hotels —Niagara Falls, ON
- $45,000–$60,000 a year
- Full-time
- Microsoft Excel
- Microsoft Office
- Finance
- Dental care
Quick apply
Senior Cloud Engineer
BMO Financial Group —Ontario
- $75,900–$141,900 a year
- Full-time
- Remote
- DevOps
- AWS
- Analysis skills
- Tuition reimbursement
- Life insurance
Room Attendant/Housekeeper - The Brock
Canadian Niagara Hotels —Niagara Falls, ON
- $19.00–$19.93 an hour
- Weekends as needed
- Hospitality
- Hotel
- Cleaning
- Dental care
Quick apply
Spa Cleaner- Christienne Fallsview Spa
Canadian Niagara Hotels —Niagara Falls, ON
- From $17.60 an hour
- Part-time
- Hospitality
- Customer service
- No experience needed
- Dental care
Quick apply
Maintenance Utility - Marriott Fallsview
Canadian Niagara Hotels —Niagara Falls, ON
- $19.50–$22.60 an hour
- Weekends as needed
- Heavy lifting
- Schematics
- Hotel
- Dental care
Quick apply
Kitchen Helper/Dishwasher
Marriott on the Falls Hotel —Niagara Falls, ON
- $17.60 an hour
- Part-time
- Hotel
- High school diploma or GED
- In-person
- Dental care
Quick apply
Maintenance Utility - The Brock Hotel
Canadian Niagara Hotels —Niagara Falls, ON
- $19.50–$22.60 an hour
- Weekends as needed
- Maintenance
- Hotel
- Plumbing
- Dental care
Quick apply
Valet Supervisor- Sheraton Fallsview
Canadian Niagara Hotels —Niagara Falls, ON
- $18.63–$19.06 an hour
- Weekends as needed
- Bilingual
- Customer service
- Hotel
- Dental care
Quick apply
Senior Assurance Manager
Express Employment Professionals —St. Catharines, ON
- $90,000–$120,000 a year
- Overtime
- Microsoft Excel
- Finance
- Supervising experience
- Dental care
- Paid time off
Quick apply
Financial Account Manager
Express Employment Professionals —St. Catharines, ON
- $75,000–$90,000 a year
- Overtime
- Bachelor's
- Accounting
- AI
- Dental care
- Paid time off
Quick apply
Breakfast Dishwasher - Marriott Fallsview Hotel
Marriott Fallsview Hotel —Niagara Falls, ON
- $17.60–$22.60 an hour
- Part-time
- No experience needed
- Hotel
- Cleaning
- Dental care
Quick apply
Maintenance Mechanic 1 at Sheraton Fallview Hotel
Sheraton Fallsview —Niagara Falls, ON
- $21.00–$24.60 an hour
- Weekends as needed
- Carpentry
- Maintenance
- Hotel
- Dental care
Quick apply
Food and Beverage Manager - Sheraton Fallsview Hotel
Sheraton Fallsview Hotel —Niagara Falls, ON
- $60,000–$70,000 a year
- Full-time
- Restaurant management
- Hotel
- Bachelor's
- Dental care
Quick apply
Accounting Manager
Canadian Niagara Hotels —Niagara Falls, ON
- $90,000–$100,000 a year
- Full-time
- Hospitality
- Microsoft Excel
- ERP systems
- Dental care
Quick apply
Valet Attendant
Marriott Fallsview Hotel and Spa —Niagara Falls, ON
- $17.60 an hour
- Weekends as needed
- Heavy lifting
- Customer service
- English
- Dental care
Quick apply
Cook - Rainforest Cafe
Canadian Niagara Hotels Group —Niagara Falls, ON
- $17.60–$22.60 an hour
- Part-time
- Cooking
- Hotel
- High school diploma or GED
- Dental care
Quick apply

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AI Annotation Specialist Data Science - AI Trainer

DataAnnotation -
St. Catharines, ON

Quick apply

Job details

Contract | Fixed term contract
$50.00–$140.56 an hour
14 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 AI Annotation Specialist Data Science - 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

machine learning engineer jobs in st. catharines on

AI Annotation Specialist Data Science - AI Trainer

Operations Research Analyst - AI Trainer

Manager of Facilities & Maintenance - Marriott on the Falls Hotel

Facilities Maintenance Quality Supervisor - Sheraton Fallsview Hotel

Corporate Accountant

Senior Cloud Engineer

Room Attendant/Housekeeper - The Brock

Spa Cleaner- Christienne Fallsview Spa

Maintenance Utility - Marriott Fallsview

Kitchen Helper/Dishwasher

Maintenance Utility - The Brock Hotel

Valet Supervisor- Sheraton Fallsview

Senior Assurance Manager

Financial Account Manager

Breakfast Dishwasher - Marriott Fallsview Hotel

Maintenance Mechanic 1 at Sheraton Fallview Hotel

Food and Beverage Manager - Sheraton Fallsview Hotel

Accounting Manager

Valet Attendant

Cook - Rainforest Cafe

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