Top 4868 Data science Jobs in California

Data Science Consultant - AI Trainer
DataAnnotation —San Ramon, CA
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
Quick Apply
10d
Data Science Consultant - AI Trainer
DataAnnotation —San Francisco, CA
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- Writing skills
- English
- Flexible schedule
Quick Apply
7d
Data Science & Analytics
Blocksi —Palo Alto, CA
- Entry level
Data Scientist
OpenBrand —San Diego, CA
- Remote
- Mid-level
14d
Artificial Intelligence (AI) & Machine Learning (ML
KPI Manufacturing —San Francisco, CA
- $83,318.94 - $100,341.09 a year
- Full-time
- Java
- AWS
- In-person
Quick Apply
Data Scientist
Sajix Software Solution Private Limited —Pleasanton, CA
- Computer Science
- Master's degree
- Bachelor's degree
Quick Apply
Data Science Engineering
California Institute of Technology —Pasadena, CA
- $40.50 - $64.00 an hour
- Overtime
- Computer science
- Computer Science
- Mid-level
Machine Learning Fellowship (6-12 months)
Volkswagen —Belmont, CA
- Full-time
- Master's degree
- Doctor of Philosophy
- Linux
14d
Data Scientist
Teknatio —Menlo Park, CA
- Remote
- Computer science
- Computer Science
- System design
RESEARCH DATA SPECIALIST II
Department of Developmental Services - Headquarters —Sacramento County, CA
- $7,640 - $9,561 a month
- Full-time
- Hybrid work
- Mid-level
- Office
- SQL
- Dental insurance
- Vision insurance
8d
Data Science Analyst III
Children's Hospital Los Angeles —Los Angeles, CA
- $99,008 - $169,728 a year
- Full-time
- Remote
- Computer Science
- Residential
- Master's degree
Data Scientist
University of California San Francisco —San Francisco, CA
- Full-time
- Azure
- Computer Science
- Mid-level
Sustainment Data Science & Analysis Support
JSL Technologies Incorporated —San Diego, CA
- $65,000 - $75,000 a year
- Computer Science
- No experience needed
- SQL
- On-the-job training
8d
Data Engineer- Data Science Focus, Ads Science Analysis & Tech (ASAT)
Amazon.com Services LLC —Palo Alto, CA
- $111,400 - $185,000 a year
- Full-time
- Bachelor's degree
- Fair chance
- 1 year
- AD&D insurance
- Health insurance
Machine Learning Engineer Graduate (TikTok-Data-Search-Basic Ranking) - 2026 Start (BS/MS)
TikTok —San Jose, CA
- $122,574 - $316,800 a year
- Multiple hires
- Computer Science
- Bachelor of Science
- Master's degree
- Paid parental leave
- Paid holidays
Data Scientist
Fanatics Collectibles —Los Angeles, CA
- $122,040 - $152,550 a year
- Call employer
- Computer science
- Computer Science
- Master's degree
Quick Apply
Junior Statistician - Surgery
UCLA Health —Los Angeles, CA
- $33.96 - $69.54 an hour
- Full-time
- Computer science
- Surgery
- Computer Science
Data Scientist
Heluna Health —Los Angeles, CA
- $51.00 - $68.72 an hour
- Mid-level
- Office
- 2 years
AI & Machine Learning Summer/Fall Co-Op (June '26 - Dec '26)
Skyworks Solutions —Irvine, CA
- $22.50 - $47.50 an hour
- Seasonal
- Computer Science
- Office
- Organizational skills
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

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data science jobs near california

Data Science Consultant - AI Trainer

DataAnnotation -
San Ramon, CA

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Job Details

Part-time | Full-time | Contract
$50 - $100 an hour
10 days ago

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 Data Science Consultant - 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 california

Data Science Consultant - AI Trainer

Data Science Consultant - AI Trainer

Data Science & Analytics

Data Scientist

Artificial Intelligence (AI) & Machine Learning (ML

Data Scientist

Data Science Engineering

Machine Learning Fellowship (6-12 months)

Data Scientist

RESEARCH DATA SPECIALIST II

Data Science Analyst III

Data Scientist

Sustainment Data Science & Analysis Support

Data Engineer- Data Science Focus, Ads Science Analysis & Tech (ASAT)

Machine Learning Engineer Graduate (TikTok-Data-Search-Basic Ranking) - 2026 Start (BS/MS)

Data Scientist

Junior Statistician - Surgery

Data Scientist

AI & Machine Learning Summer/Fall Co-Op (June '26 - Dec '26)

Data Scientist, Customer Experience

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