Top 45 Java developer back end Jobs in Boulder, Co

Back End Developer - AI Trainer
DataAnnotation —Boulder, CO
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Back End Developer - AI Trainer
DataAnnotation —Louisville, CO
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Backend Software Engineer - AI Trainer
DataAnnotation —Boulder, CO
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Cloud Engineer - AI Trainer
DataAnnotation —Boulder, CO
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Software Development Engineer
Workday —Boulder, CO
- $123,900 - $222,000 a year
- Full-time
- Computer science
- Management
- Computer Science
- Flexible schedule
Senior Software Engineer, Full Stack, Labs
Google —Boulder, CO
- $174,000 - $253,000 a year
- Full-time
- Computer science
- Computer Science
- System design
5d
Senior Software Engineer, Full Stack, Stitch
Google —Boulder, CO
- $174,000 - $253,000 a year
- Full-time
- Computer science
- Computer Science
- System design
9d
C++ Senior Staff/Senior Software Engineer
SciTec —Boulder, CO
- $120,000 - $175,000 a year
- Computer science
- Computer Science
- Office
- Profit sharing
- Paid parental leave
Quick Apply
Principal Software Engineering
Transamerica —Denver, CO
- $170,000 - $205,000 a year
- Full-time
- Hybrid work
- Computer Science
- 5 years
- System design
- Wellness program
- Paid parental leave
Manager, Solution Architect
PRICE WATERHOUSE COOPERS —Denver, CO
- $99,000 - $232,000 a year
- 7 years
- Oracle
- Computer Science
- Paid holidays
- Health insurance
Full Stack Cloud Developer
Tanaq Technical Services —United States
- Full-time
- Remote
- Background check
- 7 years
- Computer Science

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Senior React Developer/Architect
CGI Group, Inc. —Centennial, CO
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Senior Backend Engineer - Java
Real —Columbus, OH
Mentor and lead junior engineers in software engineering methodology, design, and best practices. Real operates in an AI-first engineering environment - our…
$152,000 - $194,000 a year
2d
Staff Software Engineer - AI Trainer
DataAnnotation —Dublin, OH
Flexible schedule: choose which projects you take on and when you work, on your own computer, from the comfort of your own home.
$50 - $100 an hour
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java developer back end jobs near boulder, co

Back End Developer - AI Trainer

DataAnnotation -
Boulder, CO

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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 Back End 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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java developer back end jobs in boulder, co

Back End Developer - AI Trainer

Back End Developer - AI Trainer

Backend Software Engineer - AI Trainer

Cloud Engineer - AI Trainer

Software Development Engineer

Senior Software Engineer, Full Stack, Labs

Senior Software Engineer, Full Stack, Stitch

C++ Senior Staff/Senior Software Engineer

Principal Software Engineering

Manager, Solution Architect

Full Stack Cloud Developer

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