PHP Backend AI Training Engineer

You will help improve AI systems by reviewing their PHP and backend answers. You will write strong reference solutions, compare multiple responses, and explain what makes an answer correct, secure, clear, and useful.

• Review AI-generated PHP code, backend designs, and technical explanations.
• Write reference implementations and model answers using strong PHP and backend practices.
• Evaluate responses for correctness, security, performance, clarity, and adherence to the prompt.
• Compare AI responses and provide structured feedback on their reasoning quality.
• Check architecture, data modeling, API design, caching, and database usage for problems.

What It Pays and Takes

This is a part-time contractor role for an experienced PHP backend developer. You should be comfortable assessing complex engineering problems and explaining your decisions in clear technical English.

• Pay: $60 per hour.
• Time: 20 or more hours per week.
• Work arrangement: Part-time contract work.
• Languages: English.
• Eligible locations: Bangladesh, Bhutan, Brazil, Cambodia, Germany, India, Indonesia, Malaysia, Nepal, Pakistan, Singapore, Sri Lanka, Thailand, the Philippines, the United States, Timor-Leste, and Vietnam.
• Experience level: Intermediate.
• Required: Expert-level PHP backend experience with PHP 7.4 or 8.x, object-oriented programming, strict typing, namespaces, and Composer.
• Required: Experience with a major PHP framework such as Laravel or Symfony.
• Required: Strong knowledge of REST, authentication and authorization, caching, queues, database optimization, and secure coding.
• Required: Comfort with version control, CI/CD workflows, and automated testing.
• Helpful: Experience with AI training, data annotation, or reviewing AI-generated technical content.
• Helpful: MySQL or PostgreSQL schema design, indexing, query optimization, transactions, OWASP Top 10, PHPUnit, integration tests, and observability.

How It Works

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

About AI Training Work

AI training is the human work behind systems that generate code and other content. Contributors review model answers, write examples, and give detailed feedback so AI becomes more accurate, secure, and useful; experienced specialists are paid for applying their professional knowledge.