Top 194 Data scientist Jobs in Orange County Ca

Marketing Data Scientist - AI Trainer
DataAnnotation —Costa Mesa, CA
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
Quick Apply
Marketing Data Scientist - AI Trainer
DataAnnotation —Pomona, CA
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
Quick Apply
Data Scientist
REVOLVE —Cerritos, CA
- $90,000 - $120,000 a year
- Full-time
- Computer science
- Mid-level
- 3 years
Quick Apply
Data Scientist
HTN Wireless —Laguna Hills, CA
- Mid-level
- Office
- Health insurance
Junior Machine Learning Engineer
Tax Relief Advocates —Irvine, CA
- $85,000 - $100,000 a year
- Full-time
- Computer science
- Computer Science
- Office
Health Plan Data Scientist
SCAN Health Plan —Long Beach, CA
- $106,200 - $182,983 a year
- Full-time
- Remote
- Background check
- Computer Science
- Writing skills
- Wellness program
- Paid holidays
Quick Apply
12d
Data Scientist
Gustaine —Orange, CA
- Computer Science
- Java
- Math
Data Scientist (II-Senior), Operations & Reliability
True Anomaly —Long Beach, CA
- $125,000 - $270,000 a year
- No experience needed
- Office
- Master's degree
- Health savings account
- Paid holidays
4d
Machine Learning Engineer
Layup Parts —Huntington Beach, CA
- $120,000 - $185,000 a year
- Full-time
- Mid-level
- Fair chance
- Manufacturing
- Disability insurance
- Health insurance
Quick Apply
DATA SCIENTIST II
VSolvit —Norco, CA
- $115,000 - $130,000 a year
- Azure
- Computer Science
- DevOps
- Health savings account
- Disability insurance
Quick Apply
Data Scientist for Analytics, Engineer/Scientist Support
CACI —Norco, CA
- $69,600 - $142,700 a year
- Part-time
- Up to 50% travel
- Mid-level
- Analysis skills
- Health insurance
10d
Senior Data Scientist (Onsite)
West Coast University, Inc. —Irvine, CA
- $138,230.12 - $200,406.07 a year
- Full-time
- Azure
- 3 years
- SQL
Senior Safety Data Scientist
AbbVie —Irvine, CA
- $124,500 - $236,500 a year
- Full-time
- Microsoft Word
- Microsoft Excel
- Project management
- Paid holidays
- Health insurance
10d
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
Machine Learning Scientist
Intratek Computer Inc —Irvine, CA
- Office
- Military encouraged
- Organizational skills
- Paid holidays
- Health insurance
AI Engineer
Month2Month —Irvine, CA
- $80,000 - $100,000 a year
- Full-time
- Computer science
- Computer Science
- Mid-level
- Health insurance
- Dental insurance
Quick Apply
AI / ML Winter/Spring Co-Op (Jan-June '27)
Skyworks Solutions —Irvine, CA
- $22.50 - $47.50 an hour
- Full-time
- Computer science
- Computer Science
- Office
2d
Data Scientist IV
PAC Panasonic Avionics Corporation —Irvine, CA
- $142,000 - $238,000 a year
- Full-time
- Hybrid work
- Microsoft Excel
- Computer Science
- 5 years
- Wellness program
- Health savings account
DATA SCIENTIST I–FINANCIAL & TIME SERIES FORECASTING
VSolvit —Norco, CA
- $34.62 - $45.67 an hour
- Computer Science
- Finance
- SQL
- Health savings account
- Disability insurance
Quick Apply
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

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data scientist jobs near orange county ca

Marketing Data Scientist - AI Trainer

DataAnnotation -
Costa Mesa, 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 scientist jobs in orange county ca

Marketing Data Scientist - AI Trainer

Marketing Data Scientist - AI Trainer

Data Scientist

Data Scientist

Junior Machine Learning Engineer

Health Plan Data Scientist

Data Scientist

Data Scientist (II-Senior), Operations & Reliability

Machine Learning Engineer

DATA SCIENTIST II

Data Scientist for Analytics, Engineer/Scientist Support

Senior Data Scientist (Onsite)

Senior Safety Data Scientist

Data Scientist for Analytics (Engineer/Scientist Support)

Machine Learning Scientist

AI Engineer

AI / ML Winter/Spring Co-Op (Jan-June '27)

Data Scientist IV

DATA SCIENTIST I–FINANCIAL & TIME SERIES FORECASTING

Senior Data Analyst

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