Frontend EngineerPosition: Frontend EngineerType: Freelance Hourly ContractCompensation: $90/hourLocation: RemoteAbout the OpportunityThis opportunity is for experienced Frontend Engineers and Full-Stack Developers interested in evaluating AI-generated web interfaces and code.The work focuses on comparing AI-generated frontend implementations against real-world reference websites, assessing both visual fidelity and underlying code quality.This is an evaluation-focused role rather than a traditional development position. The key requirement is the ability to identify how a webpage is constructed, recognize technical shortcuts, and provide precise, evidence-based evaluations.What You'll DoRender a reference webpage and two AI-generated implementations at a 1920×1080 viewport and evaluate which version most accurately reproduces the reference.Compare visual fidelity across different interface states, including layout, spacing, typography, colors, borders, images, layering, and overflow behavior.Review the source code of AI-generated implementations and assess HTML structure,



CSS architecture, responsiveness, maintainability, and implementation quality.Identify technical shortcuts such as excessive hardcoded positioning, unnecessary absolute positioning, poorly structured markup, or image-based recreations.Test responsive behavior across different viewport sizes and identify layout or usability defects.Use browser DevTools to inspect elements, computed styles, DOM structure, and interactive states.Provide specific, evidence-based written justifications explaining why one implementation is stronger than another.Identify genuinely broken evaluation tasks while distinguishing them from tasks that are simply challenging.Required Qualifications3–8 years of professional web development experience, primarily in frontend or full-stack engineering.Strong hands-on experience with HTML, CSS, JavaScript, responsive web development, and modern frontend engineering practices.Deep und

📌 Frontend Engineer (Vitoria-Gasteiz)
🏢 Synthires
📍 Vitoria-Gasteiz