Waterloo, On Senior project Jobs – 544 Openings This Week

Senior Research Scientist - AI Trainer
DataAnnotation —Cambridge, ON
- $50.00–$140.56 an hour
- Contract
- Remote
- Doctoral degree
- Computer Science
- Writing skills
- Flexible schedule
Quick apply
Landscape Construction Crew Leader
LP Landscape Plus Inc. —Kitchener-Waterloo, ON
- $35–$45 an hour
- Full-time
- Customer service
- Team management
- Driving
- Store discount
- Profit sharing
Quick apply
Project Manager
CANTIRO —Kitchener-Waterloo, ON
- $110,000–$130,000 a year
- Full-time
- Microsoft Outlook
- PMP
- Engineering
- Dental care
- Paid time off
Quick apply
Assistant Marketing Manager (20 month contract)
Piller's Fine Foods —Waterloo, ON
- $60,000–$70,000 a year
- Microsoft Outlook
- Marketing
- Data analysis skills
- Dental care
- Vision care
NetSuite Service Delivery Consultant
Elim Solutions —Ontario
- $160,000–$180,000 a year
- Full-time
- Remote
- Computer Science
- Software troubleshooting
- Sales
Quick apply
Divisional Coordinator (Program Development)
Agricorp —Guelph, ON
- $66,339–$78,045 a year
- Bachelor's
- No university degree
- Organizational skills
- Dental care
11d
Senior Regulatory Affairs Associate
Nutrasource —Guelph, ON
- $75,000–$100,000 a year
- Full-time
- Computer literacy
- Writing skills
- Microsoft Office
Quick apply
Senior HR Generalist
Sienci Labs Inc. —Waterloo, ON
- $70,000–$90,000 a year
- Full-time
- Continuous improvement
- Recruiting
- Training & development
- Dental care
Quick apply
Electrician - Night Shift
Elmira Pet Products —Elmira, ON
- $39.35–$43.59 an hour
- Overtime
- Schematics
- Maintenance
- Programmable logic controllers
- Store discount
- Wellness program
Quick apply
Senior Mechanical Design Engineer - AI Trainer
DataAnnotation —Waterloo, ON
- From $60 an hour
- Contract
- Remote
- Engineering
- English
- Bachelor's
Quick apply
Senior Quality & Systems Specialist
Fostet Manufacturing Inc. —Guelph, ON
- $75,000–$85,000 a year
- Full-time
- Mentoring
- Organizational skills
- Contracts
- Dental care
- Employee assistance program
Quick apply
Manager, Human Resources
Cambridge Memorial Hospital —Cambridge, ON
- $64.34–$76.60 an hour
- Full-time
- Microsoft Office
- Bachelor's
- Mentoring
- Wellness program
- Dental care
Staff Engineer
AMI Attachments Inc —Hawkesville, ON
- $120,000–$150,000 a year
- Full-time
- Engineering
- Maintenance
- Master's degree
- Dental care
- Employee assistance program
Quick apply
Entry-Level Sales Representative – Attic Insulation (Field Sales)
RPM@ Home Team Ltd —Cambridge, ON
- $750–$1,500 a week
- Full-time
- No experience needed
- Communication skills
Quick apply
Automation Engineer - Senior
Linergy Manufacturing Inc. —Guelph, ON
- $87,500–$135,000 a year
- Full-time
- AutoCAD
- Engineering
- System design
Quick apply
Senior Process Control Technologist
Elmira Pet Products —Elmira, ON
- $47.06–$52.29 an hour
- Overtime
- AutoCAD
- Engineering
- Research
- Wellness program
- Disability insurance
Quick apply
Director of Infrastructure and Policy, Moosonee, ON
Weeneebayko Area Health Authority —Ontario
- $70.41–$84.19 an hour
- Full-time
- Hybrid work
- Microsoft Office
- Presentation skills
- Team management
- Dental care
- Employee assistance program
Quick apply
Track & Infrastructure Manager - Keolis Grand River
Keolis Canada —Waterloo, ON
- Weekends as needed
- PMP
- Engineering
- Bachelor's
Quick apply
IT Project Manager
Linamar Corporation —Guelph, ON
- $100,000–$150,000 a year
- Full-time
- Computer Science
- Software troubleshooting
- PMP
- Dental care
- Vision care
Quick apply
Manager, FP&A
Vaco LLC —Waterloo, ON
- $120,000–$150,000 a year
- Hybrid work
- Microsoft Powerpoint
- Finance
- SQL
- Dental care
- Vision care
Quick apply
11d

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senior project jobs near waterloo, on

Senior Research Scientist - AI Trainer

DataAnnotation -
Cambridge, 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 Senior Research Scientist - 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

senior project jobs in waterloo, on

Senior Research Scientist - AI Trainer

Landscape Construction Crew Leader

Project Manager

Assistant Marketing Manager (20 month contract)

NetSuite Service Delivery Consultant

Divisional Coordinator (Program Development)

Senior Regulatory Affairs Associate

Senior HR Generalist

Electrician - Night Shift

Senior Mechanical Design Engineer - AI Trainer

Senior Quality & Systems Specialist

Manager, Human Resources

Staff Engineer

Entry-Level Sales Representative – Attic Insulation (Field Sales)

Automation Engineer - Senior

Senior Process Control Technologist

Director of Infrastructure and Policy, Moosonee, ON

Track & Infrastructure Manager - Keolis Grand River

IT Project Manager

Manager, FP&A

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