Remote job
HTML/CSS - Senior Developers - AI Training - US
Job details
About this role
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.