Top 106 Data science Jobs in Rancho Cucamonga, Ca

Marketing Data Scientist - AI Trainer
DataAnnotation —Pomona, CA
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
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Data Scientist - AI Trainer
DataAnnotation —Redlands, CA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
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Data Scientist I
Miovision —Ontario, CA
- $85,000 - $95,000 a year
- Full-time
- Remote
- Writing skills
- Master's degree
- SQL
- Health insurance
- 401(k) matching
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3d
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
Junior Analyst/Developer/specialist - Newegg Early Career Talent Program
Newegg —Diamond Bar, CA
- $22 - $30 an hour
- Part-time
- Computer Science
- Marketing
- Merchandising
- Health insurance
- Dental insurance
ESL Teacher (Mandarin/English) - AI Trainer
DataAnnotation —Diamond Bar, CA
- From $25 an hour
- Part-time
- Remote
- Writing skills
- English
- Research
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Treasury Analyst - AI Trainer
DataAnnotation —California
- $50 - $100 an hour
- Part-time
- Remote
- Mid-level
- Doctor of Philosophy
- Master of Business Administration
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Data Engineer
EVERYTABLE, PBC —City of Industry, CA
- $115,000 - $150,000 a year
- Full-time
- Remote
- Mid-level
- Analysis skills
- 2 years
- Paid holidays
- Health insurance
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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
Senior Data Analyst
Forward Financing —Ontario, CA
- $114,000 - $144,000 a year
- Full-time
- Computer Science
- Salesforce
- SQL
- Paid parental leave
- Health insurance
Senior Research Data Analyst
University of California, Riverside —Riverside, CA
- $84,100 - $159,400 a year
- Full-time
- ERP systems
- Mid-level
- SQL
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
8d
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
Director-Data Science Center
Loma Linda University Health —Loma Linda, CA
- $124,321.60 - $189,176.00 a year
- Full-time
- Azure
- Management
- 5 years
Senior Data Analyst
PM2CM —Pomona, CA
- $105,000 - $115,000 a year
- Full-time
- Hybrid work
- Computer Science
- Office
- Analysis skills
- Health insurance
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Staff Scientist - Computational Data Sciences Shared Resource
City of Hope —Duarte, CA
- $38.96 - $132.16 an hour
- Full-time
- Computer Science
- Analysis skills
- Math
Report Writer
HCEW MANAGEMENT SERVICES LLC —City of Industry, CA
- $80,000 - $90,000 a year
- Computer Science
- Mid-level
- SQL
- Profit sharing
- Disability insurance
9d
Financial Analytics & B.I. Analyst
Citizens Business Bank —Ontario, CA
- $35.47 - $49.65 an hour
- Full-time
- Computer Science
- Ability to walk for extended periods
- Mid-level
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
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8d
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
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data science jobs near rancho cucamonga, ca

Marketing Data Scientist - AI Trainer

DataAnnotation -
Pomona, CA

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Job Details

Part-time | Full-time | Contract
$50 - $100 an hour

Benefits

Flexible schedule

Qualifications

Software coding
Design of experiments
English
Providing code feedback

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 Marketing Data 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

data science jobs in rancho cucamonga, ca

Marketing Data Scientist - AI Trainer

Data Scientist - AI Trainer

Data Scientist I

Data Scientist for Analytics (Engineer/Scientist Support)

Junior Analyst/Developer/specialist - Newegg Early Career Talent Program

ESL Teacher (Mandarin/English) - AI Trainer

Treasury Analyst - AI Trainer

Data Engineer

Lead Data Scientist

Senior Data Analyst

Senior Research Data Analyst

Manufacturing Data Scientist

Manager, Data Science

Director-Data Science Center

Senior Data Analyst

Staff Scientist - Computational Data Sciences Shared Resource

Report Writer

Financial Analytics & B.I. Analyst

Manufacturing Data Scientist

Sr. Engineer Data Science & Agentic AI

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