Top 97 Back end developer Jobs in Ontario Ca

Staff Software Engineer - AI Trainer
DataAnnotation —City of Industry, CA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Software Developer - AI Trainer
DataAnnotation —Pomona, CA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Full Stack Developer - AI Trainer
DataAnnotation —Pomona, CA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
JUNIOR FULL STACK DEVELOPER
VSolvit —Norco, CA
- $25 - $41 an hour
- Computer Science
- SQL
- Bachelor's degree
- Health savings account
- Disability insurance
Quick Apply
Computer Programmer
Bowhead —Corona, CA
- $80,000 - $95,000 a year
- Full-time
- Ability to walk for extended periods
- System design
- Mid-level
2d
ASP .NET MVC
MaitraTech —Tustin, CA
- Part-time
- 6 years
- JavaScript
- Senior level
Senior Software Engineer
Forum Ventures —Ontario, CA
- Full-time
- Computer science
- Azure
- Computer Science
9d
SOFTWARE DEVELOPER (FULL STACK)
VSolvit —Norco, CA
- $110,000 - $165,000 a year
- Full-time
- Computer science
- Azure
- Computer Science
- Health savings account
- Disability insurance
Quick Apply
Java Developer
Skillet Group —Santa Ana, CA
- Mid-level
Quick Apply
Full Stack Developer
MVML INC —Corona, CA
- $37 - $44 an hour
- Full-time
- Hybrid work
- Background check
- Azure
- HIPAA
- Paid holidays
- Health insurance
Quick Apply
Software Engineer
Panda Restaurant Group —Rosemead, CA
- $86,000 - $121,000 a year
- Email
- Hybrid work
- Hospitality
- Computer Science
- Mid-level
- AD&D insurance
- Disability insurance
Quick Apply
10d
Full-Stack Developer
Loma Linda University Health —Loma Linda, CA
- $49.97 - $67.21 an hour
- Full-time
- Computer science
- Computer Science
- Mid-level
Senior Java Developer 936
Global Service Resources —California
- $40 - $45 an hour
- Contract
- Remote
- Background check
- Computer science
- 7 years
- Health insurance
- Paid sick time
Quick Apply
6h
AI Data Quality Specialist - AI Trainer
DataAnnotation —Pomona, CA
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Webmaster & WordPress Developer (Bilingual in English & Chinese)- Full Time - On Site
Adesso Inc —Walnut, CA
- $50,000 - $80,000 a year
- Full-time
- Computer science
- Computer Science
- English
- Health insurance
- Dental insurance
Quick Apply
5d
FULL STACK SOFTWARE DEVELOPER
VSolvit —Norco, CA
- $105,000 - $165,000 a year
- Full-time
- Remote
- Computer science
- Azure
- Computer Science
- Health savings account
- Disability insurance
Quick Apply
Role: Application Developer Location: Rancho Cucamonga, CA (Hybrid)
Workcog Inc —Rancho Cucamonga, CA
- Up to $60 an hour
- Full-time
- Mid-level
- Java
- In-person
Quick Apply
13d
Senior .Net developers
Robotics Technologies —San Bernardino, CA
- Azure
- SQL
- US work authorization
UI Developer
TECHOAUTH SOLUTIONS LLC —Rancho Cucamonga, CA
- $110,980 - $112,980 a year
- Full-time
- Hybrid work
- Computer science
- Computer Science
- 5 years
- Work from home
Quick Apply
Full-Stack Software Developer | AI Tools & Web Applications
TechCatalyst —Chino Hills, CA
- From $30 an hour
- Temporary
- Computer Science
- Research
- Mid-level
- Flexible schedule
Quick Apply

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back end developer jobs near ontario ca

Staff Software Engineer - AI Trainer

DataAnnotation -
City of Industry, CA

Quick Apply

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 Staff 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 at $50 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.

Quick Apply

Refine Your Search

back end developer jobs in ontario ca

Staff Software Engineer - AI Trainer

Software Developer - AI Trainer

Full Stack Developer - AI Trainer

JUNIOR FULL STACK DEVELOPER

Computer Programmer

ASP .NET MVC

Senior Software Engineer

SOFTWARE DEVELOPER (FULL STACK)

Java Developer

Full Stack Developer

Software Engineer

Full-Stack Developer

Senior Java Developer 936

AI Data Quality Specialist - AI Trainer

Webmaster & WordPress Developer (Bilingual in English & Chinese)- Full Time - On Site

FULL STACK SOFTWARE DEVELOPER

Role: Application Developer Location: Rancho Cucamonga, CA (Hybrid)

Senior .Net developers

UI Developer

Full-Stack Software Developer | AI Tools & Web Applications

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