JavaScript AI Training Engineer

As a JavaScript AI Training Engineer, you will help improve AI systems by reviewing generated code and technical explanations. You will focus on correctness, clarity, performance, prompt adherence, fact-checking, and the quality of the reasoning shown.

The work includes both frontend and backend JavaScript, including asynchronous patterns and state management.

• Review AI-generated JavaScript code and explanations for correctness, readability, and performance.
• Write improved solutions and clear, educational explanations that demonstrate the right approach.
• Compare multiple model responses and rate their reasoning quality and accuracy.
• Find logic errors, conceptual mistakes, and problems with edge cases.
• Check frontend and backend JavaScript behavior, including async patterns and state management.

What it pays and takes

This is fully remote, part-time contract work. Scheduling is flexible, with an estimated commitment of about 20 hours per week for 1 to 3 months.

• Pay: $25, $35, or up to $60 per hour, depending on the country variant.
• Location: Remote work available in Bangladesh, Bhutan, Brazil, Cambodia, Germany, India, Indonesia, Malaysia, Nepal, Pakistan, Singapore, Sri Lanka, Thailand, the Philippines, the United States, Timor-Leste, and Vietnam.
• Language: Excellent written English.
• Experience: At least 2 years of professional JavaScript experience in production environments.
• Technical knowledge: Closures, async/await, prototype-based inheritance, and the JavaScript event loop.
• Skills: Strong code review ability and experience judging technical correctness.
• Frameworks or runtimes: Hands-on experience with React, Node.js, or another major JavaScript framework or runtime.
• Education: A bachelor's degree in computer science or a closely related technical field.
• Helpful experience: AI data training, annotation, or evaluation of AI-generated technical content.
• Additional helpful background: JavaScript or TypeScript open-source contributions, bundlers such as Webpack, Vite, or Rollup, typed API layers, DTOs, schema-driven designs, and frontend-backend integration.

How it works

Apply on OpenTrain with your resume, then complete the application on the hiring site.

About AI training work

AI training is the human work behind modern AI systems. People review examples, write better answers, and evaluate model outputs so the systems become more accurate, useful, and reliable. JavaScript experts are needed because technical feedback helps models produce code that works and explanations that developers can trust.