Frontend Engineer – Web UI Evaluation

🔥 0 minutes ago

🗽 New York – Remote

🗽 New York – Remote

💵 $80 / hour

⏱ Part Time

🟡 Mid-level

🟠 Senior

💻 Frontend Engineer / Web Developer

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24-MAG

WebsiteLinkedInAll Job Openings

2 - 10 employees

🤝 B2B

💼 Consulting

B2B • Consulting

24-MAG is a commercial strategy and execution firm that helps B2B organizations design and implement systems, workflows, and operating rhythms for sales, client management, and cross-functional projects. They focus on transforming scattered processes into aligned, measurable, and scalable commercial functions—covering pipeline structure, account management frameworks, and operational discipline for teams seeking efficient, intentional growth.

📋 Description

• Compare a reference webpage against two AI-generated frontend implementations • Render candidate pages side by side at desktop resolution and assess fidelity to the target • Evaluate visual similarity, layout accuracy, implementation quality, and responsive behavior • Identify, rank, and describe significant defects; flag ties, ambiguities, and technically broken evaluation items • Inspect HTML, CSS, DOM structure, computed styles, the cascade, network activity, and assets using browser developer tools • Evaluate semantic markup, flexbox, CSS Grid, media queries, float- or table-based layouts, and accessibility-related implementation quality • Perform pixel-level analysis of box-model behavior, typography, colors, borders, backgrounds, images, stacking, overflow, clipping, and positioning • Run provided webpages locally using terminal-based development workflows • Write structured, technically actionable rationales for preference decisions • Apply evaluation standards consistently and contribute human preference data to improve AI-generated frontend code

🎯 Requirements

• 3+ years of professional frontend or full-stack web development experience • Strong proficiency with HTML and CSS • Deep understanding of semantic markup, flexbox, CSS Grid, media queries, and responsive design • Ability to read and reason about legacy float- and table-based layouts • Strong working knowledge of browser developer tools, including element inspection, computed styles, the box model, and network inspection • Sufficient JavaScript knowledge to understand scripts and DOM behavior • Comfortable using a terminal to run and inspect local web projects • Strong ability to identify visual differences at a detailed, pixel-level standard • Excellent written English and ability to justify technical evaluation decisions precisely • Desktop or laptop capable of displaying a browser window at 1920px width or greater • Administrator rights on the machine used for project work • Ability to install and run a local development or static-server environment • Work must be completed without using confidential or proprietary information belonging to any employer, client, institution, or other third party • H1-B and STEM OPT support is unavailable for this engagement • Experience translating Figma, PSD, or comparable designs into production frontend code is highly valued • Prior code review, technical assessment, RLHF, preference evaluation, or AI model evaluation experience 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 based on project requirements • Fully remote work • Part-time independent contractor engagement • Projects may be extended, shortened, or concluded based on project needs and performance