Frontend Web Developer for AI Data Projects

About OpenTrain

OpenTrain AI is the hiring and contracting organization for this role. OpenTrain is the #1 platform for finding and building careers in AI training and data labeling, helping contributors discover projects, build their profiles, and apply to opportunities in minutes. Creating an OpenTrain account is free.

About AI Training Work

AI training is the human side of building modern artificial intelligence. Contributors prepare and review examples such as annotated visuals, written responses, and programming content so AI systems can learn to produce more useful results. This fast-growing field offers remote, flexible opportunities for people with technical expertise.

• Work on a project connected to web development and programming data
• Contribute to how AI systems understand websites and generate or improve code
• Use your frontend knowledge in a flexible, part-time contract setting

The Role

OpenTrain is seeking a Frontend Web Developer based in the United States or Canada. You will work with website screenshots and web content to create detailed annotations, develop question-and-answer pairs, and edit HTML, CSS, and JavaScript code according to specified requirements.

The role requires precision, creativity, strong analytical ability, and careful attention to detail. Applicants should be able to start immediately and commit to project deadlines while working at least 20 hours per week.

• Location: United States or Canada
• Work type: Part-time contractor
• Time commitment: 20+ hours per week
• Experience: At least 2 years of professional frontend development experience
• Language: English
• Listed compensation: $23 USD per hour
• Rate guidance: Target rate of $20 per hour, with a maximum of $25 per hour

What You'll Do

You will analyze web elements shown in website screenshots and translate your findings into accurate, detailed training data. Your work will combine frontend implementation skills with structured annotation and evaluation tasks.

• Create detailed annotations based on website screenshots
• Analyze web elements and document their relevant characteristics
• Produce question-and-answer pairs for AI training data
• Edit and improve HTML, CSS, and JavaScript code
• Apply responsive design principles and account for cross-browser compatibility
• Review work for accuracy, clarity, and code quality
• Meet project deadlines and maintain consistent attention to detail

Requirements

This opportunity is intended for frontend developers who can combine practical web development experience with careful analysis. You should be comfortable explaining technical decisions in English and producing high-quality written responses.

• Be located in the United States or Canada
• Have at least 2 years of professional experience with HTML, CSS, and JavaScript
• Have a strong understanding of responsive design
• Understand cross-browser compatibility
• Demonstrate excellent analytical skills and attention to detail
• Be available to start immediately
• Commit to project deadlines and a workload of 20 or more hours per week
• Submit a competitive hourly rate within the stated $25 maximum

Interview Process

The interview includes questions designed to assess your frontend fundamentals, practical problem-solving, and English writing proficiency. Be prepared to explain your reasoning clearly and provide detailed responses.

• Explain the difference between HTML id and class attributes and when to use each
• Describe how to implement a responsive CSS grid layout, including relevant properties
• Explain how JavaScript closures work and give a beneficial use case
• Describe a challenging recent project and how you resolved its challenges
• Explain a technical issue to a non-technical client in clear, detailed English

Why Work in AI Training

AI training lets experienced developers apply their skills to the systems shaping the future of technology. By reviewing web content and improving programming examples, you help make AI-generated websites and code more accurate, useful, and reliable.

• Remote work from an eligible location with an internet-connected computer
• Flexible part-time work that can fit around other commitments
• A chance to apply professional frontend skills to cutting-edge AI development
• Direct involvement in preparing examples that teach AI systems how web code works

How to Apply

Create a free OpenTrain account and apply through the platform. Include your frontend experience, availability, location, and most competitive hourly rate, then prepare to demonstrate your HTML, CSS, JavaScript, and English communication skills during the interview.

• Confirm that you are located in the United States or Canada
• Review the project time commitment and compensation guidance
• Submit your application and competitive hourly rate through OpenTrain
• Be ready to start immediately if selected