St. Catharines, On Full time Jobs – 2148 Openings This Week

Data Science Manager - AI Trainer
DataAnnotation —St. Catharines, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Doctoral degree
- Computer Science
- Writing skills
- Flexible schedule
Quick apply
HVAC Lead Installer
Mr. Furnace Heating & Air Conditioning —St. Catharines, ON
- $31.32–$40.12 an hour
- Full-time
- Customer service
- HVAC
- Disability insurance
- Dental care
Quick apply
Nurse Practitioner
QUEST CHC —St. Catharines, ON
- $108,813.54–$134,309.02 a year
- Full-time
- Nursing
- Master's degree
- Continuous improvement
Quick apply
Experienced Utility Locator
Canadian Locators Inc. —St. Catharines, ON
- $25–$30 an hour
- Full-time
- CPR Certification
- High school diploma or GED
- First Aid Certification
- Wellness program
- Dental care
Quick apply
AZ Owner Operator from St. Catharines, ON to Arlington, TX
AUTOBAHN FREIGHT LINES LTD. —St. Catharines, ON
- $68,238–$207,461 a year
- Full-time
- Driving
- Tractor-trailer
- Commercial driving
- Disability insurance
- Dental care
Quick apply
Steel Shop Supervisor
TKL Group Inc —Niagara Falls, ON
- $26–$35 an hour
- Full-time
- Bar
- Assembly
- Supervising experience
- Dental care
Quick apply
Vascular Ultrasound Technologist
Barclay Diagnostic Imaging —St. Catharines, ON
- $42–$45 an hour
- Weekends as needed
- CPR Certification
- Writing skills
- Medical office experience
- Dental care
- Paid time off
Quick apply
Nurse Practitioner
Critical Trauma Therapy —St. Catharines, ON
- $60–$85 an hour
- Part-time
- Hybrid work
- Nursing
- Master's degree
- Travel
- Dental care
- Paid time off
Quick apply
Nurse Practitioner - Family Practice
Niagara Medical Group Family Health Team —Niagara Falls, ON
- $120,000–$125,477 a year
- Full-time
- CPR Certification
- Nursing
- Word processing
- Mileage reimbursement
- Dental care
Quick apply
AI Annotation Specialist Data Science - AI Trainer
DataAnnotation —St. Catharines, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Doctoral degree
- Computer Science
- Writing skills
- Flexible schedule
Quick apply
Controller
Confidential —Niagara Falls, ON
- Full-time
- Inventory control
- Microsoft Office
- Finance
- Dental care
- Vision care
Quick apply
Occupational Therapist (OT)
FunctionAbility Rehabilitation Services —Niagara Falls, ON
- $45–$70 an hour
- Full-time
- Master's degree
- Bachelor's
- Patient care
- Wellness program
- Disability insurance
Quick apply
Collection Agent
Dixon Commercial Investigators —St. Catharines, ON
- From $22 an hour
- Weekends as needed
- Customer service
- Negotiation
- Flexible schedule
Quick apply
Journeyman/woman Plumber
KONKLE PLUMBING AND HEATING —Lincoln, ON
- From $70,000 a year
- Full-time
- Plumbing
- HVAC
- Power tools
- Disability insurance
- Dental care
Quick apply
Certified Dental Assistant Level II + NDAEB
Monarch Dentistry —St. Catharines, ON
- $20.08–$29.35 an hour
- Weekends as needed
- CPR Certification
- Front desk
- Cleaning
Quick apply
Field Sales Representative
Go Sales —St. Catharines, ON
- $35,200.00–$89,227.52 a year
- Full-time
- Customer service
- Salesforce
- English
Quick apply
Technology Support Analyst
Niagara Region —Thorold, ON
- $35.04–$37.07 an hour
- Overtime
- Hybrid work
- Computer Science
- Windows
- Presentation skills
- Employee assistance program
13d
Registered Massage Therapist
RMT LOUNGE —Thorold, ON
- $65–$78 an hour
- Part-time
- Management
- Customer service
- Sanitation
- Flexible schedule
Quick apply
3d
HVAC Technician 313A
JTS Mechanical Systems Inc. —Ontario
- $55–$58 an hour
- Full-time
- Up to 50% travel
- Customer service
- Writing skills
- Dental care
- Paid time off
Quick apply
Commercial Insurance Account Manager
Hope & Harder Insurance Brokers —St. Catharines, ON
- $60,000–$65,000 a year
- Full-time
- Business development
- Analysis skills
- Organizational skills
- Dental care
- Paid time off
Quick apply
12d

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full time jobs near st. catharines, on

Data Science Manager - AI Trainer

DataAnnotation -
St. Catharines, 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 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

full time jobs in st. catharines, on

Data Science Manager - AI Trainer

HVAC Lead Installer

Nurse Practitioner

Experienced Utility Locator

AZ Owner Operator from St. Catharines, ON to Arlington, TX

Steel Shop Supervisor

Vascular Ultrasound Technologist

Nurse Practitioner

Nurse Practitioner - Family Practice

AI Annotation Specialist Data Science - AI Trainer

Controller

Occupational Therapist (OT)

Collection Agent

Journeyman/woman Plumber

Certified Dental Assistant Level II + NDAEB

Field Sales Representative

Technology Support Analyst

Registered Massage Therapist

HVAC Technician 313A

Commercial Insurance Account Manager

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