Creative Technologist, HCI

Bjak bjak.my Open · verified Aug 17, 2026

Hybrid Seoul New York Full-time Mid-level Creative

Mid-level Creative role at Bjak. Seoul · full-time.

Role brief

Growth Roles summary, based on the employer's posting.

What you'll do

Build experimental AI interfaces that move beyond standard chat experiences
Create fast proof-of-concepts with AI models, APIs, and frontend tools
Test interaction patterns for control, trust, transparency, memory, and multimodal use
Turn early concepts into testable prototypes with product, design, and ML teams
Record results, failures, and next steps to guide future product decisions

What you bring

Experience in creative technology, design engineering, prototyping, or related R&D work
Ability to create working prototypes with web technologies, APIs, or AI tools
Understanding of HCI, emerging interface patterns, AI limitations, and user mental models
Clear communication, comfort with ambiguity, and sound judgment about useful experiments
Ability to shift between design reasoning and hands-on implementation

Who this fits

You’ll suit a hands-on builder who moves comfortably between design, engineering, and AI exploration. You’ll need to work full-time in a hybrid setup in Seoul, South Korea, bring structure to ambiguity, make independent decisions, and collaborate at speed with a small team.

From the employer

About A1

There are over 5 billion users using basic applications today such email, notes, tasks that are not AI-native. 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.

Role

You will explore and build experimental AI experiences that help define how people interact with proactive AI systems. This role sits at the intersection of design, engineering, and AI experimentation.

This is not a research-only role. You will build prototypes, test ideas, and help the team decide which interaction models should become part of the product.

What You'll Be Doing

Prototype experimental AI interfaces beyond standard chat UI.
Build quick proof-of-concept experiences using AI models, APIs, and frontend tools.
Explore new ways for users to understand, direct, and collaborate with AI systems.
Test interaction ideas around human control, trust, transparency, memory, multimodal input, and long-running workflows.
Work with product, design, and ML teams to turn early ideas into testable prototypes quickly.
Identify useful HCI patterns from research, products, and emerging tools, then test whether they work for A1.
Document experiments clearly - what was tested, what worked, what failed, and what should be built next.
Contribute to the team's understanding of what HCI should look and feel like in a real consumer app.

What You Will Need

Experience prototyping at the intersection of design and technology - creative technology, design engineering, prototyping, or R&D roles.
Ability to build functional prototypes using web technologies, APIs, or AI tools.
Curiosity about how AI systems work and how users build mental models of AI behavior.
Comfort moving between design thinking and hands-on building.
Awareness of HCI principles, emerging UI patterns, and the limitations of current AI systems.
Strong communication skills - able to explain experimental ideas and prototype findings clearly.
High comfort with ambiguity and early-stage product exploration.
Good judgment on which experiments are interesting versus which ones are actually useful for users.

How We Work

The best products today in the world were built by small, world class teams. We are a high talent density and hands-on team. We make decisions collectively, move at rapid speed, striking a balance between shipping high quality work and learning. Joining our team requires the ability to bring structure, exercise judgment, and execute independently. Our goal is to put in hands of our users a truly magical product

Interview process

If there appears to be a fit, we'll reach to schedule 3, but no more than 4 interviews.

Applications are evaluated by our technical 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.