Product Designer (UX), HCI at Bjak

The role

This role focuses on designing HCI interfaces for proactive AI systems that reason and act across multiple steps. You will define new interaction models to help users understand, guide, and stay in control of AI-driven workflows. The goal is to transform complex AI capabilities into clear, usable experiences for everyday contexts.

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 error recovery
• Build interfaces that communicate AI reasoning and uncertainty to users
• Translate multi-step AI capabilities into clear and controllable user flows
• Collaborate with product and engineering teams to test and ship ideas 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 and intuitive user experiences
• Experience working in fast-moving teams alongside product managers and engineers
• Strong judgment regarding usability, edge cases, and failure handling in AI

Your impact

You will help define the future of proactive AI interaction, enabling users to complete daily tasks with significantly reduced effort. By building trust and transparency into the system, your designs will allow billions of people to benefit from AI-native workflows. Your work will directly contribute to achieving high reliability in long-running, real-world task completion.