Senior HTML/CSS Frontend for AI Training (Remote)

Prolific Academic Ltd; United States; Remote; USD 68,770,000 - 114,616,000; Full time

Benefits offered by this job

Competitive pay rates

Flexible hours

Remote work

Job summary

Prolific is seeking Senior HTML/CSS Developers to join its Expert Network for AI model training and evaluation. You’ll assess AI-generated frontend code, ensuring semantic structure and accessibility, and provide feedback on how models reason about responsive design and components.

The role emphasizes deep CSS knowledge, cross-browser testing, and clean markup. Pay rates go up to $40/hr, with many paid tasks that may be one hour or shorter, and the option to work from home.

Qualifications

• BSc or higher in CS/SE/Web Development.
• Senior Frontend/UI Engineer with HTML/CSS focus.
• Ability to build complex, responsive layouts without frameworks.
• Expert understanding of CSS cascade, specificity, box model, Flexbox, CSS Grid, accessibility, cross-browser compatibility.

Responsibilities

• Evaluate AI-generated HTML/CSS for functional correctness and semantic structure.
• Validate AI explanations for layout and styling approaches.

Skills

HTML/CSS

Frontend Development

Responsive layouts

Accessibility WCAG

Cross-browser testing

Education

BSc or higher in Computer Science or related field

Tools

DevTools

Axe/Lighthouse

CSS Modules

Job description

Prolific is seeking Senior HTML/CSS Developers to join its Expert Network for AI model training and evaluation. You’ll assess AI-generated frontend code, ensuring semantic structure and accessibility, and provide feedback on how models reason about responsive design and components.

The role emphasizes deep CSS knowledge, cross-browser testing, and clean markup. Pay rates go up to $40/hr, with many paid tasks that may be one hour or shorter, and the option to work from home.