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Frontend Code Evaluator - Expert at Mercor

Position Frontend Code Evaluator - Expert
Posted 18 Aug 2026
Expired 17 Sep 2026
Company Mercor
Location Dublin | IE
Job Type Full Time

Job Description:

Latest job information from Mercor for the position of Frontend Code Evaluator - Expert. If the Frontend Code Evaluator - Expert vacancy in Dublin matches your qualifications, please submit your latest application or CV directly through the updated Jobkos job portal.

Please note that applying for a job may not always be easy, as new candidates must meet certain qualifications and requirements set by the company. We hope the career opportunity at Mercor for the position of Frontend Code Evaluator - Expert below matches your qualifications.

About the job

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey.

Position: Frontend Engineer — Web Replication Preference Rater
Type:Contract
Compensation:$90/hour
Location:Remote

Role Responsibilities

  • Render a reference page and two candidate replications side by side at desktop width. Judge which is the closer reproduction.
  • Diff layout fidelity in detail, including box model, typography, color, image handling, and overflow.
  • Inspect underlying markup with browser devtools to distinguish genuinely correct replications from those that merely look correct.
  • Evaluate responsive behavior and semantic quality, ensuring proper use of flexbox and grid.
  • Write structured rationales for every judgment, ranking defects by importance in precise language.
  • Flag ties, ambiguous cases, and broken task items rather than forcing a preference.

Qualifications

Must-Have

  • 3+ years of professional web development experience, primarily in frontend or full-stack work.
  • Fluency in hand-written HTML and CSS.
  • Working command of browser devtools.
  • Enough JavaScript to read scripts and understand DOM manipulation.
  • Comfort in a terminal for local server setup.
  • Strong written English and discipline to justify judgments.

Preferred

  • Prior RLHF, preference labeling, or model evaluation work.
  • Code review or technical assessment background.
  • Pixel-perfect design-to-code experience.
  • Web accessibility expertise (WCAG, ARIA).
  • Familiarity with LLMs' typical failures in codegen.
  • Web scraping or DOM parsing experience.

Application Process (Takes 20–30 mins to complete)

  • Upload resume
  • AI interview based on your resume
  • Submit form

Resources & Support

  • For details about the interview process and platform information, please check:
  • For any help or support, reach out to:

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.

Job Info:

  • Company: Mercor
  • Position: Frontend Code Evaluator - Expert
  • Work Location: Dublin
  • Country: IE

How to Submit an Application:

After reading and understanding the criteria and minimum qualification requirements explained in the job information Frontend Code Evaluator - Expert at the office Dublin above, immediately complete the job application files such as a job application letter, CV, photocopy of diploma, transcript, and other supplements as explained above. Submit via the Next Page link below.

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