UK-Based UX/UI Product Designers

Mercor is recruiting UK-based UX/UI Product Designers with technical web engineering experience for a research project with a leading frontier AI lab.

We are seeking experienced UX/UI designers who have worked on end-to-end digital product design and have a strong understanding of how modern web products are built. Candidates should be comfortable working across user experience, interface design, product flows, technical constraints, and design-to-engineering handoff.

This role is focused on digital product design, not brand identity or marketing-site-only design. Strong candidates should have experience designing functional web products such as e-commerce platforms, marketplaces, customer portals, booking flows, onboarding journeys, checkout experiences, or internal operations dashboards.

Ideal candidates have experience with one or more of the following:

• UX/UI design for complex web products

• E-commerce or marketplace user flows

• Checkout, booking, onboarding, or account management experiences

• Logged-in customer portals and self-serve platforms

• Internal tools, admin panels, or operations dashboards

• Product design systems and component-based design

• Design-to-engineering handoff and implementation collaboration

• Working closely with product managers, engineers, and data/analytics teams

• Understanding front-end engineering constraints, responsive design, and web implementation tradeoffs

Preferred candidates have experience at one or more of the following companies:

• Publicis Sapient

• Red Badger

• Valtech

• Kin + Carta

• ustwo

• EPAM Continuum, specifically Experience Design / Product Design roles

• Or another leading digital product, UX/UI, or product engineering studio

You'll help create, review, and evaluate high-quality UX/UI product scenarios, leveraging your experience in product design, web interfaces, user flows, and design-engineering collaboration.

The vetting process involves:

• Resume and portfolio review

• Short interview evaluating UX/UI product design and web product expertise

Please note: Candidates must be based in the United Kingdom and have the right to work in the United Kingdom. These are essential requirements for the role.

We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.

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

About Mercor

Mercor partners with leading AI labs and enterprises to train frontier models using human expertise. You will work on projects that focus on training and enhancing AI systems. You will be paid competitively, collaborate with leading researchers, and help shape the next generation of AI systems in your area of expertise.