Remote job
HTML/CSS - Senior Developers - AI Training - Coventry, UK
Job details
About this role
Role overview Contribute specialist frontend expertise to the training and evaluation of AI systems. Work consists of assessing generated HTML and CSS, checking both the rendered result and the reasoning behind it, then giving structured technical feedback. Tasks are paid and may require up to an hour of uninterrupted work; many are shorter. A short skills assessment is part of the selection process.
Responsibilities - Review generated markup and styles for correctness, semantic quality, and maintainability. - Check explanations of layout and styling decisions for sound technical reasoning. - Render and inspect outputs to assess visual fidelity and cross-browser behaviour. - Flag accessibility problems, inefficient selectors, outdated attributes, and invalid CSS. - Give actionable feedback on responsive layouts, component design, and design systems.
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 specificity and the cascade, the box model, Flexbox, Grid, WCAG accessibility, and browser compatibility. - Ability to produce semantic HTML and maintainable CSS using current standards, design tokens, and BEM conventions. - Expertise in HTML5 and modern CSS, including custom properties, animation, and contemporary layout techniques.
Nice to have - Experience with Tailwind CSS, Sass/SCSS, CSS Modules, or component based design systems. - Familiarity with browser developer tools, accessibility auditing tools, and cross-browser testing services.
Benefits and work setup Work is flexible and remote, with compensation for accepted tasks reported as up to $40 per hour depending on skills and experience. Eligibility follows a short skills assessment, and individual tasks vary in length.