Javascript - Senior Developers - AI Training - San Francisco, USA

Role overview Use senior frontend expertise to help train and evaluate AI models that produce HTML and CSS. The work involves reviewing generated markup and styles, checking their rendered behavior, and providing structured feedback on frontend implementation. Candidates complete a short assessment before being invited to take paid tasks.

Responsibilities - Assess generated HTML and CSS for correctness, accessibility, maintainability, and alignment with modern frontend practices. - Render generated pages and styles to check appearance and cross-browser behavior. - Identify inaccessible markup, inefficient selectors, deprecated attributes, and unsupported or invented CSS properties. - Evaluate model reasoning about responsive layouts, component architecture, and design systems. - Provide clear feedback to help improve generated frontend code and design implementation.

Requirements - A bachelor’s degree or higher in computer science, software engineering, web development, or a closely related field. - Professional experience in software engineering or frontend development. - Strong command of HTML5 and modern CSS, including custom properties, animation, and contemporary layout techniques. - Ability to assess visual output, responsive behavior, and accessibility in rendered interfaces. - Preparedness to complete an initial skills assessment and paid tasks requiring focused, uninterrupted work.

Nice to have Experience with Tailwind CSS, Sass/SCSS, CSS Modules, or component-based design systems; browser developer tools, accessibility auditing tools such as axe or Lighthouse, and cross-browser testing; and familiarity with JavaScript frameworks, content management systems, or design handoff tools.

Benefits and work setup The source describes flexible, remote tasks, some lasting an uninterrupted hour and many shorter. Listed rates are up to $40 per hour, depending on skills and experience. The initial assessment is approximately 10–15 minutes.