Frontend Engineer Usted podría ser el solicitante perfecto para este trabajo. Lea toda la información asociada y asegúrese de presentar su candidatura. Position: Frontend Engineer Type: Freelance Hourly Contract Compensation: $90/hour Location: Remote About the Opportunity This 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 Do - Render 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 Qualifications - 3–8 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 understanding of semantic HTML, Flexbox, CSS Grid, media queries, and responsive layouts. - Ability to read and understand both modern and legacy web layouts, including float-based and table-based designs. - Strong proficiency with browser Developer Tools, including DOM inspection, computed styles, viewport testing, and interactive state debugging. - Comfortable working from the command line, including extracting archives, running local development servers, and troubleshooting asset paths. - Sufficient JavaScript knowledge to understand how scripts interact with the DOM and user interactions. - Strong professional written English and the ability to provide clear, detailed technical justifications. - Strong attention to detail and the ability to identify subtle visual and structural differences. Preferred Qualifications - Prior experience with RLHF, preference labeling, AI model evaluation, structured code review, or human-feedback projects.



- Pixel-perfect design-to-code experience, including work with design systems, templates, or production web interfaces. - Knowledge of web accessibility, including ARIA, semantic landmarks, and heading hierarchy. - Familiarity with common failure patterns in AI-generated frontend code. - Experience with web scraping, website archiving, DOM parsing, or working with complex crawled website structures. - Previous experience completing AI evaluation projects and working in multi-hour evaluation sessions. Equipment Requirements - Desktop or laptop capable of displaying a 1920×1080 viewport. - Ability to run a local development environment and static web server. - Administrator access to your own computer for installing required development tools. Important Project Requirements - Each evaluation unit typically takes 2–3 hours and is completed within a defined time window. - This is not microtask work and requires the ability to dedicate uninterrupted blocks of time to individual evaluations. - A functioning local development environment is required. - The role is intended for practicing web developers with strong frontend and UI implementation expertise. - Backend-only, ML/data-science-only, mobile-native-only, and DevOps-only backgrounds are generally not suitable for this evaluation work. Compensation - Competitive compensation of $90/hour. - Independent contractor engagement. - Compensation is based on completed evaluation work in accordance with project requirements. xqysrnh Application Process - Easy Apply on LinkedIn - Check Email for Next Steps - Participate in Resume Evaluation & Interview Stage Hay opciones de teletrabajo/trabajo desde casa disponibles para este puesto.

📌 Frontend Software Engineer (Remote | Up to $90/hr) (Ourense)
🏢 Synthires
📍 Ourense