Top 90 Data scientist Jobs in Ontario, Ca

Quantitative Psychologist - AI Trainer
DataAnnotation —City of Industry, CA
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- Writing skills
- English
- Flexible schedule
Quick Apply
7d
Decision Scientist - AI Trainer
DataAnnotation —Riverside, CA
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
Quick Apply
Data Scientist for Analytics (Engineer/Scientist Support)
CACI —Norco, CA
- $69,600 - $142,700 a year
- Full-time
- Mid-level
- Office
- Analysis skills
- Health insurance
Data Scientist
ocV!BE —Anaheim, CA
- $100,000 - $140,000 a year
- Full-time
- Computer Science
- Mid-level
- 3 years
DATA SCIENTIST II
VSolvit —Norco, CA
- $115,000 - $130,000 a year
- Full-time
- Azure
- Computer Science
- DevOps
- Health savings account
- Disability insurance
Quick Apply
Data Scientist
Gustaine —Orange, CA
- Computer Science
- Java
- Math
Senior Data Analyst
PM2CM —Pomona, CA
- $105,000 - $115,000 a year
- Full-time
- Hybrid work
- Computer Science
- Office
- Analysis skills
- Health insurance
Quick Apply
Lead Data Scientist
Forward Financing —Ontario, CA
- $160,000 - $220,000 a year
- Full-time
- Master's degree
- SQL
- Math
- Paid parental leave
- Health insurance
Manufacturing Data Scientist
TriMas Corporation —City of Industry, CA
- $100,000 - $135,000 a year
- Full-time
- Computer Science
- ERP systems
- SQL
- Disability insurance
- Health insurance
Quick Apply
2d
Manufacturing Data Scientist
Allfast Fastening Systems LLC —City of Industry, CA
- $100,000 - $135,000 a year
- Full-time
- Computer Science
- ERP systems
- SQL
- Disability insurance
- Health insurance
1d
Senior Research Data Analyst
University of California, Riverside —Riverside, CA
- $84,100 - $159,400 a year
- Full-time
- ERP systems
- Mid-level
- SQL
Manager, Data Science
Inland Empire Health Plan —Rancho Cucamonga, CA
- $154,128.00 - $204,214.40 a year
- Full-time
- Hybrid work
- 7 years
- Computer Science
- Research
- Disability insurance
- Health insurance
Staff Data Scientist – ML, Gen AI & Agentic AI
Niagara Bottling —Diamond Bar, CA
- $136,778.46 - $198,328.77 a year
- Full-time
- Computer Science
- Master's degree
- SQL
- Health savings account
- AD&D insurance
Quick Apply
Machine Learning Engineer – Gurobi Scheduling Optimization (Hybrid)
Match Made Tech —Irvine, CA
- $75 - $95 an hour
- Full-time
- Computer Science
- System design
- Mid-level
Quick Apply
Senior Data Analyst (AR)
Panda Restaurant Group —Rosemead, CA
- $90,000 - $126,500 a year
- Email
- Hybrid work
- 5 years
- Finance
- Bachelor's degree
- AD&D insurance
- Disability insurance
Quick Apply
AI Engineering Lead
University of California, Riverside —Riverside, CA
- $126,700 - $256,100 a year
- Full-time
- Background check
- 8 years
- Analysis skills
Sr. Manager, Data Science and Advanced Analytic Solutions
SAMYANG AMERICA INC —Brea, CA
- $120,000 - $140,000 a year
- Full-time
- 8 years
- SQL
- Continuous improvement
- Health insurance
- Dental insurance
Quick Apply
Sr. Engineer Data Science & Agentic AI
Niagara Bottling —Diamond Bar, CA
- $111,766.36 - $159,267.07 a year
- Full-time
- Microsoft Outlook
- 3 years
- AWS
- Health savings account
- AD&D insurance
Quick Apply
Machine Learning Engineer II
Niagara Bottling —Diamond Bar, CA
- $100,464.14 - $145,673.02 a year
- Full-time
- Microsoft Excel
- Microsoft Outlook
- Computer Science
- Health savings account
- AD&D insurance
Quick Apply
2d
Senior Data Analyst
Forward Financing —Ontario, CA
- $114,000 - $144,000 a year
- Full-time
- Computer Science
- Salesforce
- SQL
- Paid parental leave
- Health insurance

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data scientist jobs near ontario, ca

Quantitative Psychologist - AI Trainer

DataAnnotation -
City of Industry, CA

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Job Details

Part-time | Full-time | Contract
$50 - $100 an hour
7 days ago

Benefits

Flexible schedule

Qualifications

Quantitative applied research
Predictive modeling analysis
Software coding
Writing skills
Design of experiments
English
Predictive analytics projects
Providing code feedback

Full Job Description

Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule.

We are looking for an experienced Quantitative Psychologist - AI Trainer to help advance AI development. 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.

As a member of DataAnnotation's team, 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. Some team members fit this work alongside a full-time role, while others treat it as their primary focus.

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.

Benefits:

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.
Competitive pay: projects are paid hourly, up to $60 USD per hour. Opportunities for higher-paying projects are available with strong performance.
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:

2+ 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 is preferred (Statistics, Computer Science, Mathematics, Engineering, or similar); a 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

data scientist jobs in ontario, ca

Quantitative Psychologist - AI Trainer

Decision Scientist - AI Trainer

Data Scientist for Analytics (Engineer/Scientist Support)

Data Scientist

DATA SCIENTIST II

Data Scientist

Senior Data Analyst

Lead Data Scientist

Manufacturing Data Scientist

Manufacturing Data Scientist

Senior Research Data Analyst

Manager, Data Science

Staff Data Scientist – ML, Gen AI & Agentic AI

Machine Learning Engineer – Gurobi Scheduling Optimization (Hybrid)

Senior Data Analyst (AR)

AI Engineering Lead

Sr. Manager, Data Science and Advanced Analytic Solutions

Sr. Engineer Data Science & Agentic AI

Machine Learning Engineer II

Senior Data Analyst

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