Senior Frontend Developer for AI Training (Remote)

Prolific; Stati Uniti; Remoto; USD 33.000 - 55.000; Tempo pieno

Descrizione del lavoro

Prolific seeks Senior HTML/CSS Developers to join our Expert Network, helping train and evaluate AI models. You’ll assess HTML/CSS quality and contribute to robust frontend solutions, with paid tasks that may require focused one-hour work blocks.

A strong background in frontend development and accessibility will be essential. As a participant, you’ll be paid for your contributions, with opportunities to influence AI tooling and best practices while working on complex, real-world frontend

Competenze

• BSc or higher in CS, Software Engineering, Web Development.
• Senior Frontend Developer/UI Engineer 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.
• Adheres to semantic markup, maintains CSS with BEM, tokens and modern standards.

Mansioni

• Evaluate AI-generated HTML/CSS for correctness and semantics.
• Audit AI explanations for layout solutions and styling approaches.
• Render and test markup/styles in appropriate environments across browsers.
• Annotate inaccessible markup or deprecated CSS properties and suggest fixes.
• Provide feedback on responsive design, component architecture, and design system implementation.

Conoscenze

HTML5/CSS3

Responsive layouts

Cross-browser

CSS techniques

BEM methodology

Accessibility WCAG

Tailwind CSS

SASS/SCSS

CSS Modules

Formazione

BSc or higher in CS/Software Engineering/Web Development

Strumenti

DevTools

Lighthouse

Axe accessibility

Cross-browser testing

Descrizione del lavoro

Prolific seeks Senior HTML/CSS Developers to join our Expert Network, helping train and evaluate AI models. You’ll assess HTML/CSS quality and contribute to robust frontend solutions, with paid tasks that may require focused one-hour work blocks.

A strong background in frontend development and accessibility will be essential. As a participant, you’ll be paid for your contributions, with opportunities to influence AI tooling and best practices while working on complex, real-world frontend