Bjak

UX Engineer, HCI

Bjak
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3 hours ago
Seoul, Korea, SouthMid Level

Responsibilities

  • Build and prototype AI-native product interfaces across web and mobile.
  • Create functional prototypes for streaming responses, multi-step task flows, real-time feedback loops, and system state visibility.
  • Translate design concepts into usable, responsive, animated working code.
  • Develop UI patterns that communicate progress, uncertainty, confidence, failure, and recovery.
  • Build interfaces that allow users to supervise, correct, and redirect AI behavior.
  • Collaborate with product, design, and ML teams to validate interaction ideas.
  • Contribute to frontend architecture and reusable UI components for AI product surfaces.
  • Identify and fix usability, performance, and state-management issues in AI-driven interfaces.

Requirements

  • Strong frontend engineering skills in React, TypeScript, or equivalent.
  • Experience building interaction-heavy or experimental interfaces.
  • Strong product and UX instincts with the ability to identify unclear or broken user experiences.
  • Ability to prototype rapidly in ambiguous environments with incomplete specifications.
  • Understanding of animation, responsiveness, frontend architecture, and UI performance.
  • Interest in HCI interfaces and designing for trust, control, transparency, and recovery.
  • Comfort working across design and engineering without clear handoffs.
  • Ability to work quickly while maintaining a clear and usable user experience.
  • Portfolio submission is expected as part of the application process for design roles.

Benefits

  • Small, hands-on, high-talent-density team with collective decision-making and rapid execution.
  • Virtual and/or onsite interviews, including two interview rounds and a design assessment.
Bjak

About Bjak

201-500 employees

Our mission is to develop technology based solutions to improve financial inclusion. We develop new & innovative platforms & services globally. For example, we are the first platform to simplify and digitise comprehensive life and medical insurance, supported by AI agent. BJAK is the largest insurance platform in Southeast Asia. If you enjoy building cutting edge platform-ecosystems that gives equal access to financial services to everyone at scale, join us.