Top 252 data scientist Jobs in costa mesa, ca

Cognitive Scientist - AI Trainer
DataAnnotation —Garden Grove, CA
- $40 - $60 an hour
- Part-time
- Remote
- Computer Science
- Writing skills
- English
- Flexible schedule
Quick Apply
AI Software Engineer
Shots Studio / Happy Dad —Santa Ana, CA
- $80,000 - $100,000 a year
- Full-time
- Mid-level
- Software development
- In-person
- Health insurance
- Dental insurance
Quick Apply
Data Scientist - AI Trainer
DataAnnotation —Newport Beach, CA
- $50 - $100 an hour
- Contract
- Remote
- English
- Mid-level
- Bachelor's degree
- Flexible schedule
Data Scientist
Boot Barn —Irvine, CA
- $100,000 - $130,000 a year
- Heavy lifting
- Office
- 3 years
- Store discount
- Health insurance
Quick Apply
Data Scientist II
CorVel Corporation —Irvine, CA
- $82,574 - $127,490 a year
- Full-time
- Remote
- Computer Science
- Mid-level
- Master's degree
- Health savings account
- Disability insurance
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AI & Data Scientist (Remote)
Alignment Healthcare USA, LLC —Orange, CA
- $149,882 - $224,823 a year
- Full-time
- Remote
- Computer Science
- SQL
- Bachelor's degree
Quick Apply
Agentic AI, AI & Data Consultant
Deloitte —Costa Mesa, CA
- $93,000 - $171,300 a year
- Full-time
- Management
- Computer Science
- Up to 50% travel
Senior Data Modeling Analyst - Remote
Experian —Costa Mesa, CA
- Full-time
- Remote
- Computer Science
- 8 years
- SQL
- Paid holidays
- Health insurance
Quick Apply
Sr. Data Scientist
omega solutions inc —Santa Ana, CA
- Contract
- Windows
- SQL
- Senior level
Quick Apply
Senior Data Modeling Analyst - Remote
Experian Information Solutions —Costa Mesa, CA
- Full-time
- Remote
- Computer science
- Computer Science
- 8 years
- Paid holidays
- Health insurance
Data Scientist
REVOLVE —Cerritos, CA
- $90,000 - $120,000 a year
- Full-time
- Computer science
- Mid-level
- 3 years
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Data Scientist
Deloitte —Costa Mesa, CA
- $105,400 - $207,800 a year
- Full-time
- Azure
- Computer Science
- 5 years
7d
Durability Data Analytics Engineer
Rivian —Irvine, CA
- Full-time
- Computer science
- Computer Science
- Mid-level
Quick Apply
Research Scientist - AI Trainer
DataAnnotation —California
- $40 - $60 an hour
- Part-time
- Remote
- Computer Science
- Writing skills
- English
- Flexible schedule
Quick Apply
Principal Machine Learning Engineer
iHerb —Irvine, CA
- $205,000 - $230,000 a year
- Extended hours
- Remote
- Computer Science
- Ability to walk for extended periods
- Research
1d
Senior AI/ML Engineer - Remote
Optum —Irvine, CA
- $91,700 - $163,700 a year
- Full-time
- Hybrid work
- Computer science
- Computer Science
- Pass drug screening
Assistant Site Controller
Confidential —Garden Grove, CA
- $146,467.84 - $183,500.00 a year
- Online Application
- Hybrid work
- Computer Science
- Bachelor of Science
- SQL
Quick Apply
1d
AI Engineer III
Deloitte —Costa Mesa, CA
- $113,100 - $208,300 a year
- Full-time
- Azure
- Oracle
- Computer Science
9d
GENAI / MACHINE LEARNING AI / DATA Scientist
Hudson Manpower —Costa Mesa, CA
- Full-time
- Remote
- Senior level
Quick Apply
Clinical Research Data Scientist (RWE)
Masimo —Irvine, CA
- $100,000 - $140,000 a year
- Full-time
- Computer Science
- Office
- 3 years
- Paid parental leave
- AD&D insurance

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data scientist jobs near costa mesa, ca

Cognitive Scientist - AI Trainer

DataAnnotation -
Garden Grove, CA

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Job Details

Part-time | Full-time | Contract
$40 - $60 an hour

Benefits

Flexible schedule

Qualifications

Quantitative applied research
Predictive modeling analysis
Software coding
Writing skills
Design of experiments
English
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 Cognitive Scientist - 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 costa mesa, ca

Cognitive Scientist - AI Trainer

AI Software Engineer

Data Scientist - AI Trainer

Data Scientist

Data Scientist II

AI & Data Scientist (Remote)

Agentic AI, AI & Data Consultant

Senior Data Modeling Analyst - Remote

Sr. Data Scientist

Senior Data Modeling Analyst - Remote

Data Scientist

Data Scientist

Durability Data Analytics Engineer

Research Scientist - AI Trainer

Principal Machine Learning Engineer

Senior AI/ML Engineer - Remote

Assistant Site Controller

AI Engineer III

GENAI / MACHINE LEARNING AI / DATA Scientist

Clinical Research Data Scientist (RWE)

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