Top 35 Applied scientist Jobs in Foothill Ranch, Ca

Applied Scientist - AI Trainer
DataAnnotation —California
- $70.78 - $141.56 an hour
- Part-time
- Remote
- Computer Science
- Writing skills
- English
- Flexible schedule
Quick Apply
7d
Scientist - Applied Laser Physics
TAE TECHNOLOGIES INC —Foothill Ranch, CA
- $125,000 - $140,000 a year
- Hybrid work
- System design
- Doctor of Philosophy
- Mentoring
- Wellness program
- Paid holidays
Quick Apply
Student Researcher, BS/MS, Fall 2026
Google —Irvine, CA
- $98,000 - $131,000 a year
- Computer Science
- Bachelor of Science
- English
- Paid holidays
- Health insurance
3d
Applied Scientist II, Search Ranking
Amazon.com Services LLC —Irvine, CA
- $142,800 - $222,200 a year
- Full-time
- Office
- Java
- Master's degree
- AD&D insurance
- Health insurance
Senior Hazards/Hazardous Materials Analyst
Aspen Environmental Group —California
- $125,000 - $150,000 a year
- Email
- Microsoft Excel
- 11+ years
- Master's degree
Quick Apply
Research Scientist — Mathematics & Statistics (Chinese Mandarin Speaker)
Bitus Labs —Irvine, CA
- From $100,000 a year
- Full-time
- Master's degree
- Math
- Continuous improvement
- Paid parental leave
- Health insurance
Quick Apply
Lab Supervisor (Chino, CA)
In-N-Out —Chino, CA
- $50.38 - $57.94 an hour
- Weekends as needed
- Microsoft Excel
- Mid-level
- 3 years
- Profit sharing
- Health insurance
6d
Computer Vision Engineer
Applied Medical —Rancho Santa Margarita, CA
- $80,000 - $140,000 a year
- Full-time
- Computer science
- Azure
- Computer Science
- Paid holidays
- Health insurance
Development Chef
Stir Foods —Fullerton, CA
- $70,304 a year
- Full-time
- Microsoft Excel
- Microsoft Outlook
- Mid-level
- Paid holidays
- Health insurance
Quick Apply
Director of Clinical Research Administration & Finance
University of California, Irvine —Orange, CA
- $149,700 - $297,700 a year
- Weekends as needed
- Background check
- 5 years
- Office
- Health insurance
- Retirement plan
Patent Scientist – Physics
Knobbe Martens Olson & Bear LLP —Orange County, CA
- $125,000 - $170,000 a year
- Part-time
- Bachelor of Science
- Mid-level
- Office
- Health insurance
- 401(k)
Specialist, Clinical Safety
JENAVALVE TECHNOLOGY INC —Irvine, CA
- $100,000 a year
- Full-time
- Medicine
- Microsoft Excel
- Microsoft Outlook
Quick Apply
Polymer Materials Scientist
Purosil LLC —Corona, CA
- Full-time
- 5 years
- Master's degree
- Data entry
- Health savings account
- Dental insurance
Geoscientist I
HGI - hydroGEOPHYSICS —Irvine, CA
- Full-time
- Microsoft Word
- Spanish
- Clean driving record
- Paid holidays
- Health insurance
Quick Apply
Geoscientist I-Irvine, CA
Certerra —Irvine, CA
- $55,000 - $70,000 a year
- Full-time
- Microsoft Word
- Spanish
- Clean driving record
- Paid holidays
- Health insurance
Scientist - Plasma Diagnostics
TAE TECHNOLOGIES INC —Foothill Ranch, CA
- $125,000 - $140,000 a year
- Analysis skills
- Doctor of Philosophy
- Senior level
- Wellness program
- Paid holidays
Quick Apply
Student Researcher, PhD, Fall 2026
Google —Irvine, CA
- $118,000 - $157,000 a year
- Computer Science
- English
- Java
- Paid holidays
- Health insurance
3d
Archaeological Field Technician (On-Call)
Environmental Science Associates —Irvine, CA
- $24.34 - $34.08 an hour
- Weekends as needed
- Construction site
- Office
- Ability to lift 50 pounds
- Travel reimbursement
- 401(k)
Quick Apply
Principal Research Scientist - Modeling and Simulation
AbbVie —Irvine, CA
- Full-time
- Bachelor of Science
- Math
- Bachelor's degree
- Paid holidays
- Health insurance
Staff Scientist
Advanced Sterilization Products —Irvine, CA
- $131,215 - $219,075 a year
- Master's degree
- Bachelor's degree
- Doctor of Philosophy

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applied scientist jobs near foothill ranch, ca

Applied Scientist - AI Trainer

DataAnnotation -
California

Quick Apply

Job Details

Part-time | Full-time | Contract
$70.78 - $141.56 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 Applied 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

applied scientist jobs in foothill ranch, ca

Applied Scientist - AI Trainer

Scientist - Applied Laser Physics

Student Researcher, BS/MS, Fall 2026

Applied Scientist II, Search Ranking

Senior Hazards/Hazardous Materials Analyst

Research Scientist — Mathematics & Statistics (Chinese Mandarin Speaker)

Lab Supervisor (Chino, CA)

Computer Vision Engineer

Development Chef

Director of Clinical Research Administration & Finance

Patent Scientist – Physics

Specialist, Clinical Safety

Polymer Materials Scientist

Geoscientist I

Geoscientist I-Irvine, CA

Scientist - Plasma Diagnostics

Student Researcher, PhD, Fall 2026

Archaeological Field Technician (On-Call)

Principal Research Scientist - Modeling and Simulation

Staff Scientist

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