Top 1569 Java Developer Jobs in Hayward, CA

Backend Software Engineer - AI Trainer
DataAnnotation —Danville, CA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
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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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Java Developer
ePro InfoSystems —Fremont, CA
- Software troubleshooting
- Mid-level
- SQL
Sr. Java Developer
Glint Tech Solutions LLC —San Leandro, CA
- Azure
- Software troubleshooting
- Office
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Senior Java Developer
Teamsoft Technologies —San Francisco, CA
- 3 years
- Senior level
- Leadership
java developer
Code Lab Technology —San Francisco, CA
- Contract
- Mid-level
- Java
- Bachelor's degree
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Java Full Stack Developer
Banyan Data Services —San Jose, CA
- Mid-level
- 3 years
- AWS
- Paid parental leave
- Work from home
Software Engineer 4
Adobe —San Jose, CA
- $58.72 - $73.40 an hour
- Full-time
- Computer science
- Computer Science
- Software troubleshooting
- Health insurance
- Dental insurance
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Application Developer - AI Trainer
DataAnnotation —California
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
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Android Developer - AI Trainer
DataAnnotation —California
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
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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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Year Round Game Dev Tutors Needed! (Looking for College Students/Industry (Pleasanton/Dublin))
the Coder School —Pleasanton, CA
- From $17 an hour
- Part-time
- Java
- High school diploma or GED
- In-person
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SJ Robotics Software Engineer
PASONA N A, INC. —San Jose, CA
- $105,000 - $125,000 a year
- Full-time
- Engineering
- Mid-level
- Java
12d
Year Round Game Dev Tutors Needed! (Looking for College Students/Industry (Walnut Creek)
the Coder School —Walnut Creek, CA
- $16 - $20 an hour
- Part-time
- Background check
- Java
- JavaScript
- Flexible schedule
Quick Apply
Year Round Game Dev Tutors Needed! (Looking for College students in San Ramon)
the Coder School —San Ramon, CA
- $17 - $22 an hour
- Part-time
- Java
- JavaScript
- In-person
- Flexible schedule
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Sr. Golang Developer / API Engineer
Experis —San Francisco, CA
- Contract
- Management
- 5 years
- Office
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5d
Year Round Game Dev Tutors Needed! (Looking for College Students/Industry in Fremont))
the Coder School —Fremont, CA
- $18 - $22 an hour
- Part-time
- Background check
- Java
- In-person
- Flexible schedule
Quick Apply
Java Developer
Sovereign Technologies —Pleasanton, CA
- Mid-level
- Analysis skills
- Bachelor's degree
Java Developer
Sonoma Consulting Inc. —San Jose, CA
- Full-time
- Mid-level
- 3 years
- C++
Quick Apply
Java Developer
Ingrain Systems Inc. —San Francisco, CA
- Computer science
- Computer Science
- 5 years

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Backend Software Engineer - AI Trainer

DataAnnotation -
Danville, 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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