Top 125 back end developers Jobs in ontario, ca

Contract Software Engineer - AI Trainer
DataAnnotation —Rancho Cucamonga, CA
- $50 - $100 an hour
- Contract
- Remote
- Mid-level
- In-person
- Flexible schedule
.Net Web Programmer
Associated Reproduction Services, Inc. —Whittier, CA
- $50,000 - $60,000 a year
- Full-time
- Background check
- Computer science
- Computer Science
- Paid holidays
- Health insurance
Quick Apply
7d
Embedded Systems Developer - AI Trainer
DataAnnotation —San Bernardino, CA
- $50 - $100 an hour
- Contract
- Remote
- English
- Mid-level
- Bachelor's degree
- Flexible schedule
Angular UI Developer
Great value staffing and technologies.inc —Rancho Cucamonga, CA
- From $50 an hour
- Contract
- Mid-level
- Communication skills
- HTML
Quick Apply
8d
Senior Software Engineer, Back-End Focus
Kin Insurance —Ontario, CA
- $124,000 - $155,000 a year
- Email
- Remote
- System design
- Mentoring
- Senior level
Senior UI Angular Developer
CloudSecurityweb —Rancho Cucamonga, CA
- $60 - $65 an hour
- Contract
- In-person
- Senior level
- HTML
Quick Apply
Staff Software Engineer - AI Trainer
DataAnnotation —Pomona, CA
- $50 - $100 an hour
- Contract
- Remote
- Mid-level
- In-person
- Flexible schedule
Uipath Developer (Hybrid/91006)
California Medical Business Services —Arcadia, CA
- $36 - $53 an hour
- Full-time
- Hybrid work
- Computer science
- Computer Science
- Research
- Paid holidays
- Disability insurance
Quick Apply
Software Engineer - AI Trainer
DataAnnotation —Pomona, CA
- $50 - $100 an hour
- Contract
- Remote
- Mid-level
- In-person
- Flexible schedule
Business Application Developer
Feit Electric Co., Inc. —Pico Rivera, CA
- $120,000 - $155,000 a year
- Full-time
- Background check
- Mid-level
- Office
- Health insurance
- Dental insurance
Quick Apply
Developer II - Application Development
Inland Empire Health Plan —Rancho Cucamonga, CA
- $104,041.60 - $137,841.60 a year
- Full-time
- Hybrid work
- Computer science
- Computer Science
- Mid-level
- Paid holidays
- Disability insurance
Applied AI Engineer
Cryptio —Ontario, CA
- Full-time
- Remote
- AWS
- GAAP
- Senior level
- Paid holidays
Developer III - Application Development
Inland Empire Health Plan —Rancho Cucamonga, CA
- $118,601.60 - $157,144.00 a year
- Full-time
- Hybrid work
- Computer Science
- Software troubleshooting
- Office
- Disability insurance
- Health insurance
Developer III
Inland Empire Health Plan —Rancho Cucamonga, CA
- $118,601.60 - $157,144.00 a year
- Full-time
- Hybrid work
- 7 years
- Office
- Java
- Disability insurance
- Health insurance
Jr. Front-End Developer
Word & Brown Companies —Orange, CA
- $66,560 - $75,000 a year
- Full-time
- Computer science
- Microsoft Excel
- Azure
- Health insurance
Business System Developer
Newegg —Ontario, CA
- $100,000 - $130,000 a year
- System design
- English
- Research
- Health insurance
- Dental insurance
Senior Backend Engineer
LevoNotion Solutions —Inland Empire, CA
- $11,600 - $18,000 a month
- Full-time
- Hybrid work
- Azure
- 5 years
- System design
- Health insurance
- Flexible spending account
Quick Apply
Application Developers
ADP —San Dimas, CA
- $105,037 - $142,200 a year
- Full-time
- Computer science
- Computer Science
- Mid-level
- Wellness program
- Disability insurance
3d
JUNIOR FULL STACK DEVELOPER
VSolvit —Norco, CA
- $25 - $41 an hour
- Computer Science
- SQL
- Bachelor's degree
- Health savings account
- Disability insurance
Quick Apply
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

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back end developers jobs near ontario, ca

Contract Software Engineer - AI Trainer

DataAnnotation -
Rancho Cucamonga, CA

Apply Now

Job Details

Contract
$50 - $100 an hour

Benefits

Flexible schedule

Qualifications

Grammar Experience

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 Contract Software Engineer - 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

Benefits:

Flexible schedule

Work Location: Remote

Apply Now

Refine Your Search

back end developers jobs in ontario, ca

Contract Software Engineer - AI Trainer

.Net Web Programmer

Embedded Systems Developer - AI Trainer

Angular UI Developer

Senior Software Engineer, Back-End Focus

Senior UI Angular Developer

Staff Software Engineer - AI Trainer

Uipath Developer (Hybrid/91006)

Software Engineer - AI Trainer

Business Application Developer

Developer II - Application Development

Applied AI Engineer

Developer III - Application Development

Developer III

Jr. Front-End Developer

Business System Developer

Senior Backend Engineer

Application Developers

JUNIOR FULL STACK DEVELOPER

FULL STACK SOFTWARE DEVELOPER

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