Top 1827 Java Engineer Jobs in San Mateo, CA

Backend Software Engineer - AI Trainer
DataAnnotation —Dublin, CA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
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Software Engineer Analyst - AI Trainer
DataAnnotation —Oakland, CA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
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Java Developers
Timus Consulting —Dublin, CA
- Full-time
- Mid-level
- Java
Hiring Java Developers
AG Technologies —San Francisco, CA
- Computer Science
- Mid-level
- Java
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java developer
Code Lab Technology —San Francisco, CA
- Contract
- Mid-level
- Java
- Bachelor's degree
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Java UI Engineer
Sonsoft Inc —Sunnyvale, CA
- Full-time
- Mid-level
- Java
- Analysis skills
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Kotlin Developer
Pyramid Consulting, Inc —Sunnyvale, CA
- $46 - $50 an hour
- Urgently hiring
- 5 years
- DevOps
- AWS
- Health insurance
- Dental insurance
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Java /AngularJS
Sonsoft Inc —Sunnyvale, CA
- Full-time
- Mid-level
- 3 years
- SQL
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IT Application Engineer
Manpower Engineering —Foster City, CA
- $83 an hour
- Computer science
- Computer Science
- Mid-level
- Health savings account
- Disability insurance
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Java J2EE Engineer
Sonsoft Inc —Sunnyvale, CA
- Full-time
- Oracle
- Maintenance
- Mid-level
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Java J2EE Engineer
Sonsoft Inc —Sunnyvale, CA
- Full-time
- Oracle
- Maintenance
- Mid-level
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Software Engineer
Fuku —San Francisco, CA
- Full-time
- Computer Science
- Mid-level
- Java
- Paid holidays
- Health insurance
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Java/Python Engineer - Santa Clara, CA
Calypso Way —Santa Clara, CA
- $45 - $50 an hour
- Contract
- Mid-level
- 3 years
- Java
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22h
Backend engineers
Alan AI —Sunnyvale, CA
- Full-time
- System design
- Mid-level
- Java
Software Engineer (Java)
Nerdify —San Francisco, CA
- Mid-level
- Java
- HTML
Java/OBIEE Opportunities
AG Technologies —San Francisco, CA
- Computer Science
- Java
- Master's degree
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Java/Networking Positions
AG Technologies —San Francisco, CA
- Mid-level
- Master's degree
- SQL
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Senior Software Engineers - Java
BluePal software solution and services —Sunnyvale, CA
- Computer Science
- Mid-level
- Office
Software Engineer I
Guidewire Software —San Mateo, CA
- $86,000 - $161,000 a year
- Email
- Hybrid work
- Computer science
- Azure
- Computer Science
- Health insurance
- Dental insurance
Java Backend Engineer
UST —Sunnyvale, CA
- $75,000 - $113,000 a year
- Writing skills
- System design
- SQL
- Paid jury duty
- Health savings account
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Backend Software Engineer - AI Trainer

DataAnnotation -
Dublin, 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 Backend Software Engineer - 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

Java Engineer jobs in San Mateo, CA

Backend Software Engineer - AI Trainer

Software Engineer Analyst - AI Trainer

Java Developers

Hiring Java Developers

java developer

Java UI Engineer

Kotlin Developer

Java /AngularJS

IT Application Engineer

Java J2EE Engineer

Java J2EE Engineer

Software Engineer

Java/Python Engineer - Santa Clara, CA

Backend engineers

Software Engineer (Java)

Java/OBIEE Opportunities

Java/Networking Positions

Senior Software Engineers - Java

Software Engineer I

Java Backend Engineer

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