Frontend Engineer – Web UI Evaluation

This is a fully remote position, open to applicants in New York.

📋 Description

• Compare a reference webpage with two AI-generated frontend versions.

• Display candidate pages side by side at desktop resolution and evaluate their fidelity to the target.

• Assess visual similarity, layout precision, implementation quality, and responsive behavior.

• Identify, prioritize, and describe significant issues; highlight ties, ambiguities, and technically flawed evaluation items.

• Analyze HTML, CSS, DOM structure, computed styles, the cascade, network activity, and assets using browser developer tools.

• Review semantic markup, flexbox, CSS Grid, media queries, float- or table-based layouts, and the quality of accessibility-related implementations.

• Conduct pixel-level investigations of box-model behavior, typography, colors, borders, backgrounds, images, stacking, overflow, clipping, and positioning.

• Execute provided webpages locally using terminal-based development workflows.

• Compose structured, technically actionable rationales for preference decisions.

• Consistently apply evaluation standards and contribute human preference data to enhance AI-generated frontend code.

⛳️ Requirements

• Over 3 years of professional experience in frontend or full-stack web development.

• Strong expertise in HTML and CSS.

• Thorough understanding of semantic markup, flexbox, CSS Grid, media queries, and responsive design.

• Ability to comprehend and analyze legacy float- and table-based layouts.

• Extensive knowledge of browser developer tools, including element inspection, computed styles, the box model, and network inspection.

• Adequate JavaScript knowledge to interpret scripts and DOM behavior.

• Comfortable using a terminal for running and inspecting local web projects.

• Exceptional ability to discern visual differences with a detailed, pixel-level standard.

• Proficient written English skills, with the ability to clearly justify technical evaluation decisions.

• A desktop or laptop capable of displaying a browser window at 1920px width or larger.

• Administrator rights on the machine utilized for project work.

• Capability to install and operate a local development or static-server environment.

• Work must be conducted without utilizing any confidential or proprietary information belonging to any employer, client, institution, or other third party.

• H1-B and STEM OPT support is not available for this position.

• Experience in translating Figma, PSD, or similar designs into production frontend code is highly desirable.

• Prior experience in code review, technical assessment, RLHF, preference evaluation, or AI model evaluation is advantageous.

• Familiarity with WCAG, ARIA, accessibility testing, web scraping, or DOM parsing is beneficial.

• Experience with common failure patterns in LLM-generated frontend code is highly valued.

🏝️ Benefits

• Flexible scheduling according to project requirements.

• Fully remote work environment.

• Part-time independent contractor engagement.

• Project durations may be extended, shortened, or concluded based on project needs and performance.