Senior Frontend QA Engineer - AI HTML/CSS UI, Remote

prolificacademicltd; United States; Remote; USD 45,000 - 65,000; Full time

Benefits offered by this job

Remote work

Flexible hours

Paid tasks

Job summary

Prolific Academic Ltd seeks an expert contributor to review AI-generated frontend work, ensuring accurate HTML/CSS, accessibility, and semantic structure. You will render pages, test across browsers, and provide structured feedback on model reasoning and implementation choices.

The role requires senior frontend experience with HTML/CSS, independent layout skills, and deep CSS knowledge. Remote participation is described with flexible hours; compensation is task-based.

Qualifications

• Bachelor’s degree in computer science, software engineering, web development, or related field.
• Proven senior frontend developer/UI engineer focused on HTML/CSS.
• Ability to build complex responsive layouts independently without frameworks.
• Deep knowledge of CSS cascade, specificity, box model, Flexbox, Grid, WCAG, and cross-browser behavior.
• Strong standards for semantic HTML and maintainable CSS (BEM, design tokens, modern CSS).
• Proficiency with HTML5, Sass/SCSS, Tailwind, CSS Modules, DevTools, accessibility audits, and cross-browser testing.

Responsibilities

• Review generated markup and styles for accuracy, semantics, and best practices.
• Assess explanations of layout decisions for technical correctness.
• Render pages to verify appearance and behavior across browsers.
• Flag accessibility issues and deprecated or invalid CSS properties.
• Provide structured feedback on responsive design, component organization, and design tokens implementation.

Skills

Frontend development

HTML/CSS expert

Cross-browser testing

Accessibility WCAG

Education

Bachelor's degree in CS / related field

Tools

Sass/SCSS

Tailwind CSS

CSS Modules

DevTools

Job description

Prolific Academic Ltd seeks an expert contributor to review AI-generated frontend work, ensuring accurate HTML/CSS, accessibility, and semantic structure. You will render pages, test across browsers, and provide structured feedback on model reasoning and implementation choices.

The role requires senior frontend experience with HTML/CSS, independent layout skills, and deep CSS knowledge. Remote participation is described with flexible hours; compensation is task-based.