UX Engineer

Bjak Sdn Bhd

$90K — $130K *
Consumer Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Strong frontend engineering expertise in modern web or mobile development.
  • Robust product and UX instincts with a focus on user experience.
  • Experience in creating prototypes and interaction-heavy interfaces.
  • Proficiency in technologies like React, TypeScript, SwiftUI, or Flutter.
  • Ability to rapidly iterate designs in fast-paced, highly ambiguous environments.
  • Solid understanding of interaction design, UI performance, and animation.
  • Interest in AI-driven interfaces, multimodal interactions, and emerging UX patterns.

Responsibilities

  • Build and prototype innovative AI-native product experiences for diverse platforms.
  • Quickly turn interaction concepts and product ideas into functional prototypes.
  • Collaborate with product, design, engineering, and ML teams to validate new interaction models.
  • Develop high-quality frontend experiences with a focus on usability and responsiveness.
  • Experiment with AI-driven UI patterns and real-time assistant interactions.
  • Translate product concepts into working code and interactive prototypes.
  • Iterate based on feedback and user behavior to enhance product usability.

Benefits

  • Opportunity for high ownership and influence in product direction.
  • Collaborative work environment with cross-disciplinary teams.
  • Chance to mentor and influence AI interaction design standards.
  • Access to cutting-edge technology in AI and UX development.
  • Participation in a mission-driven team impacting billions of users globally.
Full Job Description
About the Role

A1 is building a proactive AI chat app for everyday users to bring intelligence to conversations, errands, organising and workflows. Unlike traditional chat-based applications, 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.

You will shape how users experience AI from the ground up. This is an early, high-ownership role where your design decisions will directly influence core user flows, interaction models, and product direction.

You will design systems and journeys - how users discover value, interact with intelligence, and build trust in an AI-driven product.

What You'll Be Doing
  • Build and prototype new AI-native product experiences across web, mobile, and experimental interfaces.
  • Turn early product ideas, interaction concepts, and conversational flows into functional prototypes quickly.
  • Work closely with product, design, engineering, and ML teams to explore and validate new interaction models.
  • Develop high-quality frontend experiences with strong attention to usability, motion, responsiveness, and polish.
  • Experiment with AI-driven UI patterns, multimodal interactions, streaming interfaces, and real-time assistant experiences.
  • Bridge design and engineering by translating product concepts directly into working code and interactive prototypes.
  • Iterate rapidly based on product feedback, technical constraints, and user behavior.
  • Help shape frontend architecture, reusable UI systems, and prototyping workflows for fast experimentation.
  • Contribute to the overall product experience, balancing usability, speed, technical feasibility, and AI limitations.
What You Will Need
  • Strong frontend engineering skills with experience building modern web or mobile applications.
  • Strong product and UX instincts with the ability to think beyond implementation details.
  • Experience building prototypes, interaction-heavy interfaces, or experimental product experiences.
  • Proficiency in modern frontend technologies such as React, TypeScript, SwiftUI, Flutter, or similar frameworks.
  • Ability to rapidly prototype ideas and iterate quickly in ambiguous, fast-moving environments.
  • Good understanding of interaction design, animation, responsiveness, and UI performance.
  • Interest in AI-native interfaces, conversational products, multimodal interactions, and emerging UX patterns.
  • Comfortable working closely with designers, product managers, and ML engineers.
  • Ability to balance engineering quality with experimentation speed and product iteration.
  • Willingness to take ownership from concept exploration through production implementation.


Outcomes
  • Own the end-to-end AI interaction experience, from first discovery to repeated use.
  • Ensure AI behaviors are predictable, intuitive, and trusted by users.
  • Take responsibility for the clarity, usability, and effectiveness of complex workflows.
  • Detect friction or confusion proactively and design solutions that prevent issues before they reach users.
  • Own the translation of research and engineering capabilities into coherent, usable product experiences.
  • Define and track success metrics for AI UX, and iterate designs based on real user behavior.
  • Mentor and influence other designers and cross-functional teams on AI interaction standards.
  • Make high-impact design decisions that balance speed, technical feasibility, and long-term system quality.
  • Drive a design philosophy that becomes a foundation for all future AI product surfaces.


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.

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