UX Designer, AI App

📍 Job Overview

Job Title: UX Designer, AI App

Company: Bjak

Location: Seoul, South Korea

Job Type: Full-Time

Category: Product Design / User Experience (UX)

Date Posted: 2026-08-22

Experience Level: Mid-Level (2-5 years)

Remote Status: Hybrid

🚀 Role Summary

• Lead the end-to-end User Experience (UX) design for ActAI's core AI application across iOS, Android, and web platforms.

• Design comprehensive user flows for AI-assisted tasks, focusing on intent capture, AI progress tracking, user control, and robust error recovery mechanisms.

• Translate complex AI system behaviors and states (loading, thinking, acting, stalling, failing, recovering) into clear, reliable, and controllable user interfaces.

• Collaborate closely with Product, Engineering, and Machine Learning (ML) teams to define user requirements and deliver concrete design solutions.

• Conduct user research and usability testing to identify and address user trust, uncertainty, and disengagement points within AI-driven experiences.

📝 Enhancement Note: While the raw data indicates "TELECOMMUTE" for location type and the remote_derived flag is true, the specific mention of "Seoul, South Korea" and the company's headquarters being in Malaysia (implied by bjak.my) suggests a hybrid model is more likely, with potential for remote work within South Korea or requiring occasional on-site presence in Seoul. Given the company's mission to bring AI to billions globally, a distributed team structure is plausible, but local presence for collaboration might be preferred. The term "Hybrid" is used here to reflect this nuance.

📈 Primary Responsibilities

• Own the UX strategy and execution for ActAI's core app surfaces, ensuring a consistent and intuitive experience across all supported platforms (iOS, Android, Web).

• Design detailed user flows that guide users seamlessly from initial intent capture through to successful AI task completion, including critical steps like handoffs, progress visualization, and proactive error handling.

• Define and design how the application effectively communicates the AI's current actions, past decisions, and required user confirmations or adjustments, fostering transparency and user confidence.

• Develop comprehensive user journeys that map and account for the entire spectrum of AI states a user might encounter, ensuring graceful handling of all scenarios.

• Partner with Product Managers to define user requirements, translate them into actionable design specifications, and champion user-centered design principles throughout the product development lifecycle.

• Collaborate with Engineering teams to ensure technical feasibility of designs and to provide clear, buildable assets (wireframes, prototypes, high-fidelity mockups).

• Work closely with ML engineers to understand AI capabilities and limitations, and to design interactions that effectively manage user expectations and mitigate potential AI hallucinations.

• Conduct qualitative and quantitative user research, including usability testing and surveys, to gather insights that inform design iterations and improvements.

• Contribute to the development and maintenance of a robust design system, ensuring consistency in UI elements, interaction patterns, and overall user experience across the AI application.

• Design for a dual requirement: enabling simple, everyday interactions while also supporting complex, multi-step AI workflows within a unified product experience.

📝 Enhancement Note: The raw description emphasizes "owning the UX of A1's core app experience" and designing "complete user flows for AI-assisted tasks." This implies a high degree of autonomy and responsibility for the candidate, not just execution but also strategic input into the user experience direction. The need to "design for both simple everyday interactions and complex multi-step AI workflows" within the same product points to a challenging but rewarding opportunity requiring a strong understanding of information architecture and scalable design patterns.

🎓 Skills & Qualifications

Education: Bachelor's degree in Human-Computer Interaction (HCI), Design, Computer Science, or a related field, or equivalent practical experience.

Experience: 2-5 years of experience as a UX Designer, with a proven track record of designing and shipping consumer-facing mobile or web applications.

Required Skills:

• Demonstrated expertise in UX design principles and methodologies, with a strong understanding of Human-Computer Interaction (HCI).

• Proficient in user flow design, wireframing, and creating high-fidelity prototypes using industry-standard tools such as Figma.

• Proven ability to design for complex systems that operate asynchronously, are non-deterministic, and are highly context-dependent, particularly in the realm of AI.

• Clear and strategic thinking regarding user trust, control, feedback mechanisms, and transparency in AI-driven product experiences.

• Experience conducting user research, including usability testing, and effectively translating research findings into actionable design decisions.

• Ability to balance the creation of simple, intuitive consumer UX with the complexities inherent in advanced AI system behaviors.

• Strong portfolio showcasing end-to-end UX design projects for mobile or web applications, with a focus on innovative problem-solving and user-centric solutions.

• Experience working effectively in fast-moving, agile teams with potentially evolving product scope.

• Excellent judgment regarding usability, edge cases, effective failure handling, and robust recovery flows. Preferred Skills:

• Experience designing for AI-powered products or services.

• Familiarity with Machine Learning concepts and their impact on user experience.

• Contribution to or experience with maintaining design systems.

• Experience with cross-functional collaboration, including working with product managers, engineers, and ML specialists.

• Understanding of accessibility best practices in UX design.

📝 Enhancement Note: The "AI App" and "HCI product" context strongly suggests that candidates with prior experience in designing for AI, machine learning, or complex interactive systems will be highly valued. The emphasis on "AI system behavior" and "non-deterministic" systems means candidates must demonstrate a capacity for abstract thinking and designing for uncertainty. The experience level of "2-5 years" indicates a mid-level role, expecting a solid foundation and the ability to work independently while also being a team player.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase a minimum of 2-3 significant UX design projects, ideally for consumer mobile or web applications.

• For each project, clearly articulate the problem statement, your role and responsibilities, the design process undertaken, and the final solution.

• Demonstrate a strong understanding of user flow design, wireframing, and high-fidelity prototyping, with visual examples from your projects.

• Highlight projects where you addressed complex system behaviors, asynchronous processes, or user trust issues, especially if related to AI or machine learning.

• Include case studies that show your ability to conduct user research and how those insights directly influenced design decisions and outcomes. Process Documentation:

• Be prepared to discuss your design process in detail, including how you approach user research, ideation, prototyping, and iteration.

• Explain your methodology for handling evolving product requirements and collaborating with cross-functional teams (Product, Engineering, ML).

• Detail your experience with designing for AI states, error handling, and user feedback mechanisms within interactive applications.

• Showcase your contribution to or understanding of design systems and how you ensure consistency and scalability in your designs.

📝 Enhancement Note: Given the role's focus on AI and complex systems, the portfolio should ideally include examples of how the candidate has tackled uncertainty, provided clear feedback loops, and managed user expectations in dynamic environments. A strong emphasis on demonstrating the impact of their design decisions through user metrics or qualitative feedback will be crucial.

💵 Compensation & Benefits

Salary Range:

For a mid-level UX Designer with 2-5 years of experience in Seoul, South Korea, the estimated annual salary range would typically be between ₩60,000,000 to ₩90,000,000. This range can vary based on the candidate's specific experience, the depth of their portfolio, and the company's compensation philosophy.

Benefits:

• Competitive salary package.

• Opportunity to work on a groundbreaking AI product with global impact.

• Collaborative and high-talent-density team environment.

• Potential for significant career growth and skill development in the rapidly evolving AI space.

• Health and wellness benefits (specifics to be confirmed by the company).

• Paid time off and holidays (specifics to be confirmed by the company). Working Hours:

• Standard full-time working hours, estimated at 40 hours per week.

• The company culture emphasizes high execution speed and independent work, suggesting a focus on results rather than strict time-tracking, while maintaining professional work hours.

📝 Enhancement Note: Salary ranges for UX Designers in Seoul can vary significantly. This estimate is based on general market data for mid-level tech roles in South Korea, considering the company's focus on AI and its global ambitions. Actual compensation will depend on Bjak's specific compensation strategy and the candidate's qualifications. Benefits are inferred based on standard tech industry offerings for full-time roles, but specific details must be verified with the employer.

🎯 Team & Company Context

🏢 Company Culture

Industry: Technology, Artificial Intelligence (AI), Software Development. ActAI aims to build AI-native applications that are accessible to everyday users, focusing on reliability, context, and real-world task completion to minimize AI hallucinations.

Company Size: The description mentions "small, world class teams" and "high talent density," suggesting a lean, agile startup environment, likely with fewer than 50 employees initially, but with ambitious growth plans.

Founded: The founding date is not specified, but the company's mission to build AI-native applications for over 5 billion basic application users indicates a forward-thinking, innovative venture.

Team Structure:

• The team is described as "high talent density" and "hands-on," implying a flat hierarchy where individuals are expected to contribute across various aspects of product development.

• Collaboration is collective, with decisions made jointly and a rapid pace of execution.

• The UX Designer will work closely with Product Managers, Engineers (iOS, Android, Web), and Machine Learning (ML) specialists, indicating a cross-functional, integrated team approach