Top 1067 Java Developer Jobs in Union, NJ

Backend Software Engineer - AI Trainer
DataAnnotation —Newark, NJ
- $50 - $100 an hour
- Contract
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Staff Software Engineer - AI Trainer
DataAnnotation —Carteret, NJ
- $50 - $100 an hour
- Contract
- Remote
- Mid-level
- In-person
- Flexible schedule
Entry Level Software Engineer
BAE Systems Inc. —Totowa, NJ
- $70,828 - $120,408 a year
- Full-time
- Computer science
- Computer Science
- Office
- Health savings account
- Paid holidays
Software Engineer/ Developer Edison NJ
Eniac Systems —Edison, NJ
- Remote
- Computer Science
- 5 years
- Java
Software Developer / Java Developer (Multiple openings)
United IT —Iselin, NJ
- Email
- Computer Science
- Mid-level
- Office
Java Developer
Barclays —Whippany, NJ
- $131,997 - $135,000 a year
- Multiple hires
- Office
- Java
- Continuous improvement
- Health insurance
- Dental insurance
Fullstack Developer - Java + Angular
Sierre Technologies —Hanover, NJ
- $50 - $65 an hour
- Contract
- Computer Science
- Senior level
- Communication skills
Quick Apply
Software Engineer - fullstack developer
JSR Tech Consulting —Newark, NJ
- $60 - $65 an hour
- Hybrid work
- Computer science
- 6 years
- Computer Science
Quick Apply
SOFTWARE DEVELOPER, APPLICATIONS
Averon Solutions —Edison, NJ
- Email
- Remote
- Software troubleshooting
- Research
- Mid-level
Jr Java Developer
Veracity Software —Iselin, NJ
- Email
- Mid-level
- 2 years
- Communication skills
- Flexible schedule
Software Engineer
JSR Tech Consulting —Newark, NJ
- $60 - $65 an hour
- Contract
- Hybrid work
- Computer science
- 6 years
- Computer Science
Quick Apply
Software Developer / Engineer (Java)
Eniac Systems —Edison, NJ
- Office
- AWS
- Senior level
Software Developer
Reliance Global Services —South Plainfield, NJ
- Computer science
- Computer Science
- Mid-level
Full Stack developer - REMOTE
Two95 International Inc. —Hoboken, NJ
- Contract
- Remote
- Mid-level
- 3 years
- Travel
Quick Apply
Software Engineer-I
Mobility Ideal Health —Edison, NJ
- Computer science
- Azure
- Computer Science
Quick Apply
Solr Search Developer
Big Dossier —Union, NJ
- Computer science
- Computer Science
- Continuous improvement
Computer Programmer
Everest Consulting Group —Edison, NJ
- Multiple hires
- Computer Science
- Mid-level
- Java
Java/J2EE Developer
Orchid InfoSystems —Edison, NJ
- SQL
- Senior level
Java Developer (Server Side)
Tricon Solutions —Englewood Cliffs, NJ
- $70 - $80 an hour
- Contract
- Azure
- Software troubleshooting
- Mid-level
Quick Apply
Junior Software Engineer
MetLife —Bridgewater, NJ
- $64,100 - $83,000 a year
- Email
- Hybrid work
- Azure
- Computer Science
- Office
- Paid holidays
- Disability insurance
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Backend Software Engineer - AI Trainer

DataAnnotation -
Newark, NJ

Apply Now

Job Details

Contract
$50 - $100 an hour

Benefits

Flexible schedule

Qualifications

Writing skills
C#
English
SQL
C++
JavaScript
Swift
Grammar Experience
Python
HTML

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 Backend 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

Job Type: Contract

Pay: $50.00 - $100.00 per hour

Work Location: Remote

Apply Now

Refine Your Search

Java Developer jobs in Union, NJ

Backend Software Engineer - AI Trainer

Staff Software Engineer - AI Trainer

Entry Level Software Engineer

Software Engineer/ Developer Edison NJ

Software Developer / Java Developer (Multiple openings)

Java Developer

Fullstack Developer - Java + Angular

Software Engineer - fullstack developer

SOFTWARE DEVELOPER, APPLICATIONS

Jr Java Developer

Software Engineer

Software Developer / Engineer (Java)

Software Developer

Full Stack developer - REMOTE

Software Engineer-I

Solr Search Developer

Computer Programmer

Java/J2EE Developer

Java Developer (Server Side)

Junior Software Engineer

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