[Hiring] Frontend Engineer @the Opportunity

Role Description

We are seeking experienced Frontend Engineers to evaluate AI-generated web interfaces and code. Rather than building new products, you will compare AI-generated frontend implementations against real-world reference websites and determine which implementation is more accurate, robust, and well-constructed. This role is ideal for frontend or full-stack engineers with strong HTML, CSS, JavaScript, responsive design, browser DevTools, and web development fundamentals, including the ability to evaluate both how a page looks and how it is built.

Important: This project is evaluation-focused, not frontend authoring.

What You'll Do

• Run a reference website and two AI-generated implementations locally.
• Evaluate each implementation at a 1920×1080 viewport and across required interactive states.
• Compare visual fidelity, including:
  • Layout, spacing, and box model
  • Typography and text styling
  • Colors, borders, and visual treatments
  • Images and asset handling
  • Z-index, overflow, and positioning
• Inspect the underlying HTML, CSS, and JavaScript to assess implementation quality.
• Identify whether an implementation genuinely recreates the interface or relies on shortcuts such as excessive hardcoding, inappropriate absolute positioning, or screenshot-based rendering.
• Test responsive behavior and identify layout defects at different viewport sizes.
• Provide specific, evidence-based explanations supporting every preference.
• Determine whether a task is genuinely broken or simply difficult and should still be evaluated.

Qualifications

• 3–8 years of professional web development experience, primarily in frontend or full-stack development.
• Strong command of HTML and CSS, including:
  • Semantic HTML
  • Flexbox
  • CSS Grid
  • Media queries
  • Responsive design
  • Legacy float- and table-based layouts
• Strong understanding of browser rendering and frontend architecture.
• Comfortable using Browser DevTools, including inspecting elements, computed styles, viewport dimensions, and interactive behavior.
• Comfortable working from the command line, including extracting archives and running local development servers.
• Working knowledge of JavaScript sufficient to read and understand DOM-manipulating scripts.
• Ability to evaluate both modern and legacy web interfaces.
• Strong written English and the ability to provide precise, evidence-based technical reasoning.
• Availability for 2–3 hour contiguous work sessions, as each evaluation unit is timed.

Equipment & Technical Setup

• A desktop or laptop capable of displaying a 1920×1080 viewport.
• A real local development environment.
• Administrator access to your computer to install and run a local server.
• Ability to download, extract, inspect, and run website source files locally.
• Tablets, Chromebooks, or locked-down devices that cannot run a local static server are not suitable for this project.

Nice to Have

• Previous AI evaluation, RLHF, preference labeling, or structured code-review experience.
• Pixel-perfect design-to-code experience.
• Accessibility expertise, including ARIA, semantic landmarks, and heading hierarchy.
• Familiarity with common LLM-generated coding errors.
• Experience with web scraping, website archiving, or DOM parsing.
• Experience working with messy or legacy website codebases.
• Multiple completed engagements on similar evaluation projects.

Important Project Eligibility

This opportunity is intended for practicing web developers with strong frontend skills. Backend-only, ML/data science-only, mobile-native, and DevOps-only backgrounds are not suitable for the role. Designers without coding experience and developers who have only worked within component libraries without hands-on CSS experience may also struggle with the evaluation requirements.

Prior project experience: You must have completed at least one previous engagement with the platform in full. This project is not onboarding new experts without prior completed engagement experience.

Contract Details

• Independent contractor engagement.
• Fully remote.
• Flexible scheduling, subject to the requirement for contiguous multi-hour work sessions.
• Each evaluation unit typically takes 2–3 hours and is timed.
• Projects may be extended, shortened, or concluded early depending on project requirements and performance.
• Payments are made weekly based on services rendered.
• H-1B and STEM OPT candidates are not currently supported.
• Work will not require access to confidential or proprietary information belonging to another employer, client, or institution.

Why Join

• Apply your frontend expertise to the evaluation of AI-generated code.
• Work on challenging real-world web interfaces across different eras and development styles.
• Help improve the visual fidelity, responsiveness, architecture, and reliability of AI-generated frontend code.
• Contribute to the development and evaluation of next-generation AI systems.

Ideal Candidate

A hands-on frontend engineer with strong HTML/CSS fundamentals, excellent visual judgment, browser and debugging expertise, and the ability to explain precisely why one implementation is technically and visually superior to another.

Skills

• Front-End Engineering