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UX Designer, AI App

bjakcareerUnited KingdomActAI Design
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Salary
Not listed
Job type
Full-time
Work mode
Remote
Experience
Mid
Posted
28 Sept 2026
Status
Open · checked 7d ago

About this role

ActAI is hiring a UX Designer for their AI app in the United Kingdom to own the interface of their core application experience. This opportunity suits a professional with a strong consumer app background who can design intuitive interactions for non-deterministic AI systems.

Role Overview

This position involves owning the end-to-end user experience for ActAI's primary application surfaces. The person in this role will design how users initiate tasks, monitor AI progress, maintain control, and handle recovery scenarios. The work focuses on translating complex artificial intelligence behaviors into clear, reliable, and controllable product flows for everyday users.

Key Responsibilities

Own the user experience for the core application across web, iOS, and Android platforms.
Design complete user journeys for AI-assisted tasks, covering intent capture, progress tracking, handoff, and error recovery.
Create interfaces that display AI actions, decisions, and points where user confirmation or adjustment is necessary.
Map out and design various system states including loading, thinking, acting, waiting, failing, stalling, and recovering.
Collaborate with engineering, product, and machine learning teams to translate requirements into concrete designs.
Conduct usability research to identify areas of user uncertainty, disengagement, or lost trust.
Deliver user flows, wireframes, and high-fidelity designs ready for engineering implementation.
Contribute to the shared design system and user experience patterns for artificial intelligence app surfaces.
Balance simple daily interactions with multi-step workflows within a single product.

Requirements

Background as a UX designer working on consumer web or mobile applications.
Strong portfolio demonstrating relevant design work.
Proficiency in high-fidelity prototyping, wireframing, and user flow design.
Ability to design for asynchronous, context-dependent, and non-deterministic systems.
Understanding of user feedback, trust, control, and transparency in artificial intelligence products.
Experience executing user research and applying findings to design choices.
Comfort working in fast-paced environments with shifting product scopes.
Strong judgment regarding usability, edge cases, and failure recovery flows.

Skills and Tools

Figma
Mobile and web UX design
Wireframing and prototyping
User research
Design systems

About the Company

ActAI builds proactive applications for users worldwide to simplify tasks such as email, notes, calendars, and workflows without requiring complex prompting. The company focuses on persistent context, real-world task completion, and high reliability for long-running workflows to reduce hallucinations. The organization operates as a small, hands-on, and high-talent-density team making collective decisions at a rapid pace.

How to Apply

Candidates should apply on the official company careers page and submit a portfolio as part of the application process.

Skills and tech stack

Questions candidates ask

What surfaces will the UX Designer work on?

The designer will own the user experience for ActAI's core app surfaces across iOS, Android, and web.

What is the interview process like?

The process includes submitting a portfolio, followed by two rounds of interviews and a design assessment conducted virtually or onsite.

What tools are required for the role?

Solid skills in Figma for user flow design, wireframing, and high-fidelity prototyping are required.

What is the mission of the company?

The company aims to build proactive applications that bring intelligence to everyday conversations, errands, organizing, and workflows with minimal prompting.

What experience is needed regarding AI systems?

Candidates must be able to design for systems that are asynchronous, non-deterministic, and context-dependent, while balancing simple consumer UX with complex AI behaviors.

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site