Top 697 Web Developer Jobs in San Mateo, CA

Frontend Developer - AI Trainer
DataAnnotation —Milpitas, CA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
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UI Developer (GC_USC)
Sonsoft Inc —Sunnyvale, CA
- Full-time
- Mid-level
- Analysis skills
- Bachelor's degree
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Java UI Developer
Sonsoft Inc —Sunnyvale, CA
- Full-time
- Mid-level
- Java
- Analysis skills
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AngularJS/UI Developer
Sonsoft Inc —Sunnyvale, CA
- Full-time
- Mid-level
- Analysis skills
- Bachelor's degree
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Software Engineer, Frontend/Fullstack
Wisdom AI —San Mateo, CA
- $150,000 - $300,000 a year
- Full-time
- Computer Science
- Bachelor's degree
- APIs
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Software Engineer (Front-end)
Finrise —Burlingame, CA
- Email
- Office
- AWS
- Continuous improvement
Web Developer
8aNet —Santa Clara, CA
- Email
- Computer Science
- Mid-level
- Master's degree
Web Designer
PDF Solutions —Santa Clara, CA
- $40 - $75 an hour
- Contract
- Mid-level
- JavaScript
- Product management
11d
Front-end developer
Metamins —Burlingame, CA
- Full-time
- Computer science
- Computer Science
- English
- Health insurance
Intermediate/Junior Web Developer
Social Concepts —Redwood, CA
- Email
- Computer science
- Computer Science
- Bachelor of Science
Frontend Software Engineer
HeyGen —San Francisco, CA
- $180,000 - $240,000 a year
- Mid-level
- HTML
- Health insurance
- Paid time off
Staff Frontend Software Engineer
Clerk AI —San Francisco, CA
- Remote
- 6 years
- Mentoring
- Senior level
- Dental insurance
- 401(k) 4% Match
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Odos - Frontend Engineer
deCircle —San Francisco, CA
- Full-time
- Remote
- Mid-level
- AWS
- Analysis skills
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Frontend Developer (React) Junior/Mid
Careerswift —San Francisco, CA
- Full-time
- Remote
- Mid-level
- 3 years
Web Designer
Hex Technologies —San Francisco, CA
- $170 a day
- Remote
- Management
- 8 years
- Mentoring
- Health insurance
- Paid time off
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
Web Developer
San Francisco Bay University —Fremont, CA
- $45 - $65 an hour
- Full-time
- Hybrid work
- Mid-level
- University
- Bachelor's degree
Quick Apply
Software Engineer -- Frontend
Skydera —Palo Alto, CA
- Mid-level
- Office
- Health insurance
- Dental insurance
Web Development
Family Reunion —San Francisco, CA
- Email
- Microsoft Outlook
- Windows
- SQL
UI Developer
Accenture —Mountain View, CA
- $49.29 - $59.29 an hour
- Full-time
- Computer Science
- Mid-level
- Office
- Disability insurance
- Health insurance

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Web Developer jobs near San Mateo, CA

Frontend Developer - AI Trainer

DataAnnotation -
Milpitas, CA

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Job Details

Part-time | Full-time | Contract
$50 - $100 an hour

Benefits

Flexible schedule

Qualifications

English

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 Frontend Developer - AI Trainer to help train AI models. 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. 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 that assessment, you'll receive an email confirmation, and paid work will become available to you through 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 $100+ USD per hour. Opportunities for higher bonus rates available for certain projects.
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.

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Refine Your Search

Web Developer jobs in San Mateo, CA

Frontend Developer - AI Trainer

UI Developer (GC_USC)

Java UI Developer

AngularJS/UI Developer

Software Engineer, Frontend/Fullstack

Software Engineer (Front-end)

Web Developer

Web Designer

Front-end developer

Intermediate/Junior Web Developer

Frontend Software Engineer

Staff Frontend Software Engineer

Odos - Frontend Engineer

Frontend Developer (React) Junior/Mid

Web Designer

Frontend Web Developer

Web Developer

Software Engineer -- Frontend

Web Development

UI Developer

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