Top 316 Data scientist Jobs in Walnut, Ca

Cognitive Scientist - AI Trainer
DataAnnotation —Garden Grove, CA
- $40 - $60 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
Quick Apply
Geophysicist - AI Trainer
DataAnnotation —Pasadena, CA
- $40 - $60 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
Quick Apply
Data Scientist
EVgo —Los Angeles, CA
- $100,700 - $125,900 a year
- Full-time
- Remote
- Mid-level
- SQL
- Bachelor's degree
- Commuter assistance
- Health savings account
Quick Apply
Data Scientist
Fanatics Collectibles —Los Angeles, CA
- $122,040 - $152,550 a year
- Call employer
- Computer science
- Computer Science
- Master's degree
Quick Apply
3d
Data Scientist
REVOLVE —Cerritos, CA
- $90,000 - $120,000 a year
- Full-time
- Computer science
- Mid-level
- 3 years
Quick Apply
Research Data Scientist - AI Trainer
DataAnnotation —Los Angeles, CA
- $40 - $60 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
Quick Apply
Research Scientist - AI Trainer
DataAnnotation —California
- $40 - $60 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
Quick Apply
Data Scientist II
JPL/NASA —Pasadena, CA
- $122,720 - $135,512 a year
- Full-time
- Computer Science
- Mid-level
- Java
- Dental insurance
- Paid time off
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
3d
Data Scientist, Customer Experience
Whatnot —Los Angeles, CA
- $162,000 - $215,000 a year
- Full-time
- Remote
- Computer Science
- 5 years
- Mid-level
- Paid parental leave
- Health insurance
Data Scientist
ocV!BE —Anaheim, CA
- $100,000 - $140,000 a year
- Full-time
- Computer Science
- Mid-level
- 3 years
Data Scientist
Heluna Health —Los Angeles, CA
- $51.00 - $68.72 an hour
- Mid-level
- Office
- 2 years
Research Data Scientist
USC —Los Angeles, CA
- $106,012.83 - $125,000.00 a year
- Full-time
- Hybrid work
- 3 years
- SQL
- AWS
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
Quick Apply
Data Scientist Supervisor
Heluna Health —Alhambra, CA
- $9,852.82 - $13,278.10 a month
- Hybrid work
- Azure
- 6 years
- Computer Science
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
Senior Data Scientist
REVOLVE —Cerritos, CA
- $120,000 - $150,000 a year
- Full-time
- Computer science
- 3 years
- Master's degree
Quick Apply
Data Science Engineering
California Institute of Technology —Pasadena, CA
- $40.50 - $64.00 an hour
- Computer science
- Computer Science
- Mid-level
- Paid holidays
- Health insurance
Data Scientist, Product Analytics
Whatnot —Los Angeles, CA
- $185,000 - $260,000 a year
- Full-time
- Remote
- Computer Science
- 3 years
- SQL
- Paid parental leave
- Health insurance
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
9d

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data scientist jobs near walnut, 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

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 Cognitive 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, up to $60 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:

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 walnut, ca

Cognitive Scientist - AI Trainer

Geophysicist - AI Trainer

Data Scientist

Data Scientist

Data Scientist

Research Data Scientist - AI Trainer

Research Scientist - AI Trainer

Data Scientist II

Data Scientist for Analytics (Engineer/Scientist Support)

Data Scientist, Customer Experience

Data Scientist

Data Scientist

Research Data Scientist

Data Scientist II

Data Scientist Supervisor

Senior Data Analyst

Senior Data Scientist

Data Science Engineering

Data Scientist, Product Analytics

Lead Data Scientist

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