Bjakcareer

Product Designer (UX), HCI

United Kingdom, Remote. Posted 9 days ago

The role

You will design end-to-end user experiences for AI product surfaces. This role focuses on building HCI interfaces where users can understand, guide, and control AI systems.

What you will do

  • Design end-to-end user experiences for AI product surfaces, from concept to shipped product.
  • Create interaction patterns for human-AI workflows, including prompting, review, confirmation, correction, handoff, and recovery.
  • Design interfaces that help users understand AI actions and uncertainty.
  • Turn complex, multi-step AI capabilities into clear, controllable flows.
  • Work closely with product, engineering, and ML teams to define problems, test ideas, and ship quickly.
  • Produce wireframes, flows, prototypes, and high-fidelity designs for web and mobile.
  • Run lightweight user research and usability tests.
  • Help define reusable HCI design patterns as the product and design system mature.

Required qualifications

  • Experience as a product designer or UX designer, with a portfolio across web or mobile products.
  • Strong skills in interaction design, information hierarchy, and prototyping.
  • Proficiency in Figma and fast iteration workflows.
  • Ability to simplify complex systems and turn unclear product behavior into clear user experiences.
  • Experience working closely with product managers and engineers in fast-moving teams.
  • Comfort working with ambiguity and shaping solutions before requirements are fully defined.
  • Good judgment on usability, edge cases, and failure handling.
  • Clear thinking about trust, control, feedback, and transparency in AI-driven experiences.

Before you apply

  • Candidates are expected to submit a portfolio as part of the application process.
  • If there appears to be a fit, there will be 2 rounds of interviews and a design assessment.

About the company

Actai aims to build proactive applications for anyone in the world with minimal to no prompting. Their first application is an agent-first mobile communication app.