HTML/CSS - Senior Developers - AI Training - US

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

Vantaggi offerti da questo lavoro

Flexible remote participation after a短

Rates up to $40/hour

Descrizione del lavoro

Prolific Academic Ltd. seeks a senior frontend engineer to contribute deep HTML/CSS expertise for evaluating AI-generated interfaces. You will review markup, assess layout explanations, render code for cross-browser output, and provide structured feedback on accessibility and maintainability.

Responsibilities include auditing selectors, obsolete attributes, and CSS quality, while advising on responsive design and design system approaches. Remote participation is possible after assessment.

Competenze

• A bachelor’s degree or higher in computer science, software engineering, web development, or related technical field.
• Professional experience as a senior frontend developer or UI engineer focused on HTML and CSS.
• Ability to build complex, responsive layouts and components without relying on frameworks or libraries.
• Strong knowledge of CSS behaviour, including specificity, the box model, Flexbox, and Grid, plus accessibility and browser compatibility.
• Ability to write semantic HTML and maintainable CSS using current standards and practices such as BEM and design tokens.
• Familiarity with HTML5, modern CSS, and tools such as browser developer tools and accessibility auditing software.

Mansioni

• Review generated markup and styles for correctness, semantic structure, and maintainability.
• Assess explanations of layout and styling decisions for technical accuracy.
• Render and inspect code to check its visual output and cross-browser behaviour.
• Flag accessibility gaps, inefficient selectors, obsolete attributes, and invalid CSS.
• Provide feedback on responsive design, component structure, and design system approaches.

Conoscenze

HTML & CSS

Responsive layouts

Semantic HTML

CSS specificity

Accessibility

Design tokens

BEM

Formazione

Bachelor's degree or higher in CS/SE/Web development or related field

Strumenti

Browser DevTools

Accessibility auditing tools

Descrizione del lavoro

Role overview

Contribute senior frontend expertise to the training and evaluation of AI systems through paid, task-based work. You’ll assess generated HTML and CSS, check how well code and explanations address real interface requirements, and give structured feedback on implementation quality.

Responsibilities

• Review generated markup and styles for correctness, semantic structure, and maintainability.
• Assess explanations of layout and styling decisions for technical accuracy.
• Render and inspect code to check its visual output and cross-browser behaviour.
• Flag accessibility gaps, inefficient selectors, obsolete attributes, and invalid CSS.
• Provide feedback on responsive design, component structure, and design system approaches.

Requirements

• A bachelor’s degree or higher in computer science, software engineering, web development, or a related technical field.
• Professional experience as a senior frontend developer or UI engineer focused on HTML and CSS.
• Ability to build complex, responsive layouts and components without relying on frameworks or libraries.
• Strong knowledge of CSS behaviour, including specificity, the box model, Flexbox, and Grid, plus accessibility and browser compatibility.
• Ability to write semantic HTML and maintainable CSS using current standards and practices such as BEM and design tokens.
• Familiarity with HTML5, modern CSS, and tools such as browser developer tools and accessibility auditing software.

Nice to have

• Experience with Tailwind CSS, Sass/SCSS, CSS Modules, component-based design systems, or cross-browser testing platforms.

Benefits and work setup

• Flexible, remote participation after a short skills assessment.
• Paid tasks may require an uninterrupted hour; many are shorter. The source lists rates of up to $40 per hour, depending on skills and experience.