Java Coding Specialist - Freelance AI Trainer Project

Agency; United States; Remote; USD 52,000 - 72,000; Full time

Job summary

Agency is seeking a Java Coding Specialist for a Freelance AI Trainer Project. You will apply deep Java expertise across OO design, concurrency, JVM internals, and data structures to evaluate model-generated solutions for correctness and quality. Remote, contract-based engagement with rigorous assessments and clear documentation is offered.

The role emphasizes identifying incorrect approaches, edge-case handling, and sound reasoning behind code choices, suitable for AI training data curation.

Qualifications

• Bachelor's, master's, or PhD in CS, software engineering, or related field is a strong signal.
• Real-world Java experience, competitive programming, open-source contributions, or technical writing are valued.

Responsibilities

• Evaluate Java problems and model-generated solutions for correctness and quality.
• Assess edge cases, reasoning, and production-readiness of code.
• Document failure patterns clearly for peers to act on.

Skills

Java

Object-oriented design

Concurrency

JVM internals

Data structures

Algorithms

System architecture

Education

Bachelor's degree in CS or related field

Master's degree or PhD advantageous

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?

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