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Java Coding Specialist - Freelance AI Trainer Project

Role overview

Qualifications

  • Bachelor's, Master's, or PhD in computer science, software engineering, or a closely related field
  • Real-world Java experience
  • Competitive programming experience
  • Technical writing experience

Responsibilities

  • Put advanced language models through their paces on Java problems of varying difficulty
  • Assess model-generated solutions for correctness, reasoning, and production quality
  • Review Java problems and model-generated solutions, documenting failure patterns
  • Flag well-specified and appropriately challenging problems for training

About the company

Invisible Technologies Inc. logo

Invisible Technologies Inc.

Artificial Intelligence & Machine Learning Services

Invisible is the operations innovation company transforming how companies are built and run. We are a tech-enabled service providing solutions to the world’s most complex business problems. Driven by our proprietary process orchestration platform, we seamlessly integrate advanced AI and automation with a global network of over 6,000 experts. This powerful combination delivers new capabilities and eliminates barriers to execution for our clients, unlocking unprecedented efficiency, scale, and growth opportunities.

Company details

Company typeLarge
IndustryArtificial Intelligence & Machine Learning Services
Company size1001 - 5000

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Job description

Java Coding Specialist - Freelance AI Trainer Project United States of America

Are you a Java expert who can spot a flawed abstraction from across a codebase? Large-scale language models are evolving from clever chatbots into engines of real scientific and engineering progress. High-quality training data is what separates a capable model from a genuinely useful one. That data starts with people who actually know the craft.

We're looking for Java specialists with deep fluency in object-oriented design, concurrency, JVM internals, data structures, algorithms, and system architecture. You'll put advanced language models through their paces on Java problems spanning a wide range of difficulty and complexity, assessing whether model-generated solutions are correct, well-reasoned, and production-quality. That means evaluating not just whether code runs, but whether it's the right approach, whether edge cases are handled, and whether the reasoning behind it holds up.

You'll review Java problems and model-generated solutions, judge correctness and code quality, identify where the model's logic breaks down, and document failure patterns clearly enough that others can act on them. You may also flag whether a given problem is well-specified and appropriately challenging for training purposes.

A bachelor's, master's, or PhD in computer science, software engineering, or a closely related field is a strong signal. So is real-world Java experience, competitive programming, open-source contributions, or technical writing. The ability to clearly articulate why a solution is wrong or weak, not just that it is, matters as much as the technical depth.

Ready to put your Java expertise to work shaping the next generation of AI? Apply today.

We offer a pay of $45 per hour for candidates who successfully pass our preliminary Java-focused assessments. As a contractor, you'll supply your own secure computer and high-speed internet. Company-sponsored benefits such as health insurance and PTO do not apply.

Project Type: Freelance / Contract 

Workplace type: Remote

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MR

Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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