UK-Based UX / UI Product Designers (Train AI Models Part Time!)

hackajob is collaborating with Mercor to connect them with exceptional professionals for this role.

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.