Senior HTML/CSS Developer for AI Training (Remote)

Prolific; United States; Remote; USD 33,000 - 55,000; Full time

Job summary

Prolific is seeking Senior HTML/CSS Developers to join our Expert Network to train and evaluate AI models. You will review AI-generated HTML/CSS, ensure semantic structure, and assess layout and styling approaches.

Successful candidates join Prolific as participants, with paid tasks and flexible hours. Expect to work on high-quality frontend code and design implementations, with pay up to $40/hr depending on skills and experience.

Qualifications

• BSc or higher in CS/SE/Web Dev or related field.
• Senior frontend development experience with HTML/CSS focus.
• Ability to build complex responsive layouts without frameworks.
• Deep knowledge of CSS cascade, specificity, box model, Flexbox, Grid, WCAG and cross-browser compatibility.
• Knowledge of BEM, tokens and modern CSS standards.

Responsibilities

• Evaluate AI-generated HTML/CSS for accuracy and semantic structure.
• Audit AI explanations for layout and styling approaches.
• Render model-generated markup to verify visuals and cross-browser behavior.
• Identify inaccessible markup and deprecated CSS properties.
• Provide feedback on responsive design and component architecture.

Skills

BSc in CS

Senior Frontend Dev

HTML/CSS expert

CSS architecture

Responsive layouts

Education

BSc in CS or related

Tools

Tailwind CSS

SASS/SCSS

CSS Modules

Job description

Prolific is seeking Senior HTML/CSS Developers to join our Expert Network to train and evaluate AI models. You will review AI-generated HTML/CSS, ensure semantic structure, and assess layout and styling approaches.

Successful candidates join Prolific as participants, with paid tasks and flexible hours. Expect to work on high-quality frontend code and design implementations, with pay up to $40/hr depending on skills and experience.