Senior HTML/CSS Engineer for AI Training — Remote

Prolific; United States; A distancia; USD 33.000 - 55.000; Jornada completa

Descripción de la vacante

Prolific is seeking Senior HTML/CSS Developers to join our Expert Network to assist in training and evaluating AI models. You will review and refine frontend code, ensure semantic markup, and maintain high CSS quality while working on AI-driven tasks from home.

Ideal candidates have strong background in HTML/CSS, frontend engineering, and modern CSS techniques, with a focus on accessibility and responsive design for cross-browser environments.

Formación

• BSc or higher in Computer Science, Software Engineering, Web Development, or a closely related technical field.
• Senior Frontend Developer or UI Engineer with HTML/CSS focus.
• Ability to build complex, responsive layouts without relying on frameworks.
• Deep CSS knowledge: cascade, specificity, box model, Flexbox, CSS Grid, WCAG, cross-browser compatibility.
• Adherence to BEM, design tokens, and modern CSS standards.

Responsabilidades

• Evaluate AI-generated HTML/CSS for accuracy, semantics, and best practices.
• Audit AI explanations for layout solutions and styling approaches.
• Render model-generated markup in browsers to verify visuals and cross-browser behavior.
• Identify inaccessible markup, inefficient selectors, deprecated attributes, or hallucinated CSS properties.
• Provide feedback on responsive design, component architecture, and design system implementation.

Conocimientos

HTML/CSS

Frontend Development

Software Engineering

Responsive Layouts

Accessibility WCAG

Educación

BSc or higher in Computer Science, Software Engineering, Web Development, or related field

Herramientas

Tailwind CSS

SASS/SCSS

CSS Modules

DevTools

Lighthouse

Descripción del empleo

Prolific is seeking Senior HTML/CSS Developers to join our Expert Network to assist in training and evaluating AI models. You will review and refine frontend code, ensure semantic markup, and maintain high CSS quality while working on AI-driven tasks from home.

Ideal candidates have strong background in HTML/CSS, frontend engineering, and modern CSS techniques, with a focus on accessibility and responsive design for cross-browser environments.