Senior UI/UX Designer - Prototyping

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: Senior Product Designer, UI/UX
Type: Contract
Compensation: $80–$110/hour
Location: Remote
Commitment: 40 hours/week

Role Responsibilities

• Partner with AI researchers to identify best-in-class UI and UX patterns, turning them into clear principles and rubrics.
• Build polished, interactive web prototypes using HTML, CSS, JavaScript, React, and Tailwind or AI-native tools like Cursor, v0, Lovable, and Bolt.
• Review AI-generated interfaces and provide specific, actionable feedback on layout, hierarchy, interaction, motion, and visual polish.
• Explore a wide range of visual styles and animation approaches, from productivity tools to consumer apps and games.
• Collaborate with designers and researchers to maintain consistency and elevate quality standards.

Qualifications

Must-Have

• 7+ years of experience as a product designer, design lead, or creative front-end engineer.
• Hands-on prototyping skills in HTML, CSS, JavaScript, React, Tailwind, or AI-native tools.
• Strong grounding in user-centered design, interaction design, and rapid prototyping.
• Senior-level design judgment with the ability to set direction and explain design choices.
• Ability to engage reliably for 40 hours/week.
• Clear written communication and precise, constructive design feedback.

Preferred

• Fluency with motion and animation tools like Framer Motion, GSAP, Rive, Lottie, After Effects, or experience in 3D and WebGL.

Compensation & Legal

• W-2 employment with Cincinnatus LLC.

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: https://talent.docs.mercor.com/welcome
• For any help or support, reach out to: support@mercor.com

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