Ruby Engineer, AI Code Review

You will evaluate AI-generated Ruby and Ruby on Rails code and help improve the quality of model answers. The work combines code review, technical fact-checking, clear written explanations, and comparison of multiple AI responses.

You will focus on whether code is correct, logical, readable, testable, maintainable, and explained clearly. You will also write idiomatic Ruby examples and model answers that show sound programming patterns.

• Review and compare AI-generated Ruby and Rails solutions.
• Find problems in MVC structure, domain modeling, control flow, readability, and maintainability.
• Fact-check technical content and explain why a solution is strong or weak.
• Write idiomatic Ruby examples and high-quality model answers.
• Evaluate responses for clarity, testability, and long-term code quality.

This is an intermediate, part-time contractor role for experienced Ruby developers. The work requires strong technical judgment and the ability to explain code decisions in clear English.

• Pay: $55 per hour.
• Time: 20+ hours per week.
• Work type: Part-time contract work.
• Location: Open to candidates 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: Professional fluency in English.
• Required: Professional Ruby programming experience in production environments.
• Required: Strong knowledge of Ruby on Rails, MVC architecture, and idiomatic Ruby patterns.
• Required: Hands-on experience building or maintaining Ruby or Rails applications.
• Required: Experience judging readability, maintainability, and logical correctness in Ruby and Rails code.
• Required: Experience using large language models or AI coding assistants while programming.
• Preferred: A bachelor’s degree in Computer Science or a closely related technical field.
• Preferred: Prior AI data training, large-scale code review, or evaluation of AI-generated technical content.
• Helpful: Experience with Ruby on Rails, Sinatra, and RSpec in real projects.
• Helpful: Merged pull requests in Ruby open-source projects, metaprogramming experience, test-heavy systems experience, or competitive programming exposure.

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

AI training is the human work behind many AI systems. People review model answers, check code, and provide examples and feedback so models can produce more accurate and useful results.

Experienced contributors are valuable because specialized knowledge helps identify subtle errors and explain what a strong answer should look like. OpenTrain helps people find AI training and data-labeling roles, build a profile, and apply in minutes.