Lead UX Designer

Department: A1 Product

Location: Seoul, Korea

Employment Type: FullTime

About A1

There are over 5 billion users using basic applications today such email, notes, tasks, and a list of applications that are not AI-native to organise their lives. Our mission is to build a proactive smart assistant for everyday users to bring intelligence to conversations, errands, organising and workflows, with minimal prompting.

Our product focuses on achieving high reliability for long-running workflows, persistent context, and real-world task completion. The system must handle multi-step reasoning, interact with external tools, and remain reliable despite non-deterministic model behavior. Our objective is to help users complete tasks daily enjoyable with over ~90%* reduced time.

About the Role

Create beautiful, fast, and intuitive interfaces for A1.

You'll focus on the visual design of our products, ensuring every screen is clear, polished, and easy to use. Working alongside Product Designers and engineers, you'll bring the user experience to life through exceptional interface design.

What You Will Be Doing

• Design high-quality user interfaces

• Build and maintain UI components and design systems.

• Refine layouts, typography, spacing, and visual consistency.

• Work closely with product and engineering to deliver pixel-perfect experiences.

• Continuously improve the quality of the product interface.

What You Will Need

• Strong portfolio demonstrating UI design work.

• Excellent visual design, typography, and layout skills.

• Experience building and maintaining design systems.

• Proficiency with Figma.

• Strong attention to detail and craftsmanship.

How We Work

The best products in the world are built by small, highly capable teams. We operate with high talent density, fast execution speed, and strong ownership. We care deeply about product quality, clear thinking, and practical execution.

This is a hands-on environment. Everyone is expected to contribute directly, operate independently, and make good decisions under ambiguity. Our goal is to build products that are genuinely useful to billions of people globally.

Interview process

For design roles, we expect candidates to submit a portfolio as part of the application process.

If there appears to be a fit, we'll reach out to schedule 2 rounds of interviews and a design challenge.

Applications are evaluated by our team members. Interviews will be conducted via virtual meetings and/or onsite.

We value transparency and efficiency, so expect a prompt decision. If you've demonstrated the exceptional skills and mindset we're looking for, we'll extend an offer to join us. This isn't just a job offer; it's an invitation to be part of a team that's bringing AI to have practical benefits to billions globally.