Product Designer (UX), HCI at Bjak

The role

This role focuses on designing Human-Computer Interaction interfaces for proactive AI systems that reason and act across multiple steps. You will define new interaction models to help users guide, correct, and trust AI-driven workflows in everyday applications.

What you'll do

• Design end-to-end user experiences for AI product surfaces from concept to launch
• Create interaction patterns for human-AI workflows including prompting and recovery
• Build interfaces that communicate AI reasoning and uncertainty to users
• Transform complex multi-step AI capabilities into clear and controllable flows
• Collaborate with product and engineering teams to test ideas and ship quickly
• Produce high-fidelity designs and prototypes for both web and mobile platforms

What you'll bring

• Proven experience as a product or UX designer with a strong portfolio
• Proficiency in Figma and rapid prototyping within fast-iteration workflows
• Ability to simplify complex systems into clear user experiences
• Experience working closely with product managers and engineers in agile teams
• Strong judgment regarding usability, edge cases, and AI transparency

Your impact

You will help define the next generation of proactive AI applications, moving beyond basic prompting to create reliable, long-running workflows. Your work will enable billions of users to organize their lives more effectively while reducing AI hallucinations and building deep system trust.