Top 397 Javascript developer opportunity Jobs in San Mateo, Ca

Developer - AI Trainer
DataAnnotation —Daly City, CA
- $50 - $100 an hour
- Contract
- Remote
- English
- Mid-level
- Bachelor's degree
- Flexible schedule
Contract QA Engineer - AI Trainer
DataAnnotation —Foster City, CA
- $50 - $100 an hour
- Contract
- Remote
- Mid-level
- In-person
- Flexible schedule
Test Engineer
Manpower Engineering —Foster City, CA
- $38 an hour
- Computer Science
- Mid-level
- Analysis skills
- Health savings account
- Disability insurance
Quick Apply
8d
Software Engineer I
PlayStation Global —San Mateo, CA
- $137,300 - $205,900 a year
- Computer science
- Azure
- Computer Science
- Wellness program
- Health insurance
Software Engineer
Guidewire Software —San Mateo, CA
- $86,000 - $130,000 a year
- Email
- Mid-level
- Java
- Databases
- Health insurance
- Dental insurance
Software Engineer Analyst - AI Trainer
DataAnnotation —Oakland, CA
- $50 - $100 an hour
- Contract
- Remote
- English
- Mid-level
- Bachelor's degree
- Flexible schedule
E-Commerce Mgr/Magento
Continental Western Corporation —San Leandro, CA
- From $5,000 a month
- Full-time
- Mid-level
- 3 years
- Java
- Health insurance
- Dental insurance
Quick Apply
Staff Software Engineer - AI Trainer
DataAnnotation —Dublin, CA
- $50 - $100 an hour
- Contract
- Remote
- Mid-level
- In-person
- Flexible schedule
Web Application Developer - Defense
Palantir Technologies —Palo Alto, CA
- $135,000 - $200,000 a year
- Full-time
- Computer science
- Computer Science
- System design
- Commuter assistance
- Paid parental leave
Full Stack Developer
GridCARE —Redwood City, CA
- Full-time
- Hybrid work
- Azure
- Computer Science
- Mid-level
Software Engineer III - AI Services
Guidewire Software —San Mateo, CA
- $124,000 - $210,000 a year
- Email
- Mid-level
- Office
- Java
- Health insurance
- Dental insurance
Senior AI Engineer
QuinStreet —Foster City, CA
- $80 - $100 an hour
- Remote
- System design
- 11+ years
- JavaScript
Quick Apply
11d
SDET II
PlayStation Global —San Mateo, CA
- $140,500 - $210,700 a year
- Computer science
- Computer Science
- Writing skills
- Wellness program
- Health insurance
Front End Web Developer/Designer
PROVIDENT CREDIT UNION —Redwood City, CA
- $44 - $58 an hour
- Full-time
- Computer Science
- DevOps
- Mid-level
- AD&D insurance
- Paid holidays
Quick Apply
Software Engineer, Frontend
Clipboard —San Francisco, CA
- $180,000 - $400,000 a year
- Full-time
- Remote
- Mid-level
- Communication skills
QA Automation Engineer
Rakuten Global —San Mateo, CA
- $96,442.50 - $163,680.00 a year
- Full-time
- Computer science
- Computer Science
- Mid-level
- Dental insurance
- Paid time off
Principal Frontend Engineer - Discovery
roblox —San Mateo, CA
- $295,250 - $345,040 a year
- Full-time
- Computer science
- Computer Science
- Office
Full-Stack Software Engineer
quadric, Inc —Burlingame, CA
- $110,000 - $270,000 a year
- Full-time
- Hybrid work
- Computer Science
- 5 years
- Office
- Health insurance
- Dental insurance
Quick Apply
Applied AI Engineer
Augment Code —Palo Alto, CA
- $225,000 - $300,000 a year
- Mid-level
- Office
- Java
- Commuter assistance
- Health insurance
Frontend Web Developer
Air Apps —San Francisco, CA
- $99,000 - $170,000 a year
- Full-time
- Mid-level
- 3 years
- HTML
- Disability insurance
- Health insurance

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javascript developer opportunity jobs near san mateo, ca

Developer - AI Trainer

DataAnnotation -
Daly City, CA

Apply Now

Job Details

Contract
$50 - $100 an hour

Benefits

Flexible schedule

Qualifications

English
Bachelor's degree
AI
Grammar Experience
TypeScript
Python

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 a proficient Developer - AI Trainer to help advance AI development. As a member of DataAnnotation’s coding team, you’ll be part of a growing community of over 100,000 professionals — including front-end, back-end, full-stack, machine learning, and other engineers — who are driving real-world impact in AI development.

Our platform offers an engaging blend of flexibility and challenge: you’ll work closely with state-of the art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve. Some team members fit this work alongside a full-time role, while others treat it as their primary focus, choosing projects and schedules that align with their 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 that assessment, you’ll receive an email confirmation, and paid work will become available to you through 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 $100+ USD per hour. Opportunities for higher-paying projects are available with strong performance.
Impact: help shape the future of AI technologies.
Responsibilities:

Design and solve diverse coding problems used to train AI systems.
Write clear, high-quality code snippets and detailed explanations.
Evaluate AI-generated code for accuracy, performance, and clarity.
Provide feedback that directly shapes the next generation of AI models.
Qualifications:

Fluency in English (native or bilingual level).
Proficiency in at least one of the following programming languages or frameworks: JavaScript, TypeScript, Python, C, C#, C++, React, Go, Java, Kotlin, or Swift.
Excellent writing and grammar skills.
A bachelor’s degree (completed or in progress).
Previous experience as a Software Developer, Coder, Software Engineer, or Programmer is preferred.
Note: Payment is made via PayPal. We will never ask for any money from you. PayPal will handle any currency conversions from USD. This job is only available to those in the US, Canada, UK, Ireland, Australia, and New Zealand. Those located outside of these countries will not see work or assessments available on our site at this time.

#INDCODSTN

Pay: $50.00 - $100.00 per hour

Work Location: Remote

Apply Now

Refine Your Search

javascript developer opportunity jobs in san mateo, ca

Developer - AI Trainer

Contract QA Engineer - AI Trainer

Test Engineer

Software Engineer I

Software Engineer

Software Engineer Analyst - AI Trainer

E-Commerce Mgr/Magento

Staff Software Engineer - AI Trainer

Web Application Developer - Defense

Full Stack Developer

Software Engineer III - AI Services

Senior AI Engineer

SDET II

Front End Web Developer/Designer

Software Engineer, Frontend

QA Automation Engineer

Principal Frontend Engineer - Discovery

Full-Stack Software Engineer

Applied AI Engineer

Frontend Web Developer

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