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.