UX-UI Designer Expert

Job Title: UI/UX Design Expert

Type: Independent Contractor

Compensation: $80-$150 per hour

Location: Remote

Commitment: Flexible, own schedule

Role Overview

Mercor is partnering with a leading AI research organization to engage experienced UI/UX and product designers for a project focused on evaluating how well AI systems perform real-world digital product design work. Rather than producing deliverables yourself, you will define what excellent work looks like: designing task-specific grading criteria and scoring completed work samples with rigorous, well-reasoned written justifications.

Key Responsibilities

Design precise, task-specific grading criteria for real-world digital product and UX deliverables (design systems and component libraries, responsive UI layouts and dashboards, end-to-end product flows such as onboarding, checkout, and booking, logged-in customer portals, UX writing and product content, and design-to-engineering/production handoff)

Score AI-generated and human work samples against those criteria, with detailed written justifications for every score

Apply consistent, evidence-based judgment so that scores are reproducible and defensible

Incorporate structured feedback from senior reviewers and iterate quickly on your work

Ideal Qualifications

5+ years of professional experience in product design, UI/UX, or design systems for real digital products (not brand or marketing sites)

Background at leading digital-product and UX studios, in-house product-design teams at major product-led companies, or e-commerce and marketplace companies with sophisticated customer portals and dashboards

Experience across one or more relevant tracks: Product / UI / Design Systems Designer, UX Lead, UX Writer / Content Designer, or digital Product / Business Analyst

Deep fluency in the day-to-day craft: interaction and visual design, design systems, responsive layouts, end-to-end product flows, prototyping and production handoff in Figma, and articulating critique the way a design or UX lead would in a review

Exceptionally strong written communication, with the ability to explain exactly why a piece of work does or does not meet the bar for a real product and its users

Detail-oriented, consistent, and comfortable having your judgment reviewed and calibrated against peers

Prior experience with AI training, evaluation, or human-data projects is a strong plus

Application Process

Submit your resume, portfolio, or relevant professional background to get started

Qualified applicants may be asked to complete a brief assessment or submit additional information

Restrictions

We are unable to support H1-B or STEM OPT candidates at this time.

Contract and Payment Terms

You will be engaged as an independent contractor.

This is a fully remote role that can be completed on your own schedule.

Projects can be extended, shortened, or concluded early depending on needs and performance.

Your work at Mercor will not involve access to confidential or proprietary information from any employer, client, or institution.

Payments are weekly on Stripe or Wise based on services rendered.

Work Location: Remote