Frontier UX Engineer: Build Next‑Gen Multimodal UI

Hark; San Jose (CA); On-site; USD 150,000 - 350,000; Full time

Job summary

Hark is an artificial intelligence company building advanced, personalized intelligence. One that is proactive, multimodal, and capable of interacting with the world through speech, text, vision, and persistent memory.

The Embedded Software team seeks a Frontier UX Engineer to turn design ideas into usable experiences. This is not a traditional UI role; you’ll push across layers to close the gap between design language and the platform, owning end-to-end development with design, firmware, and

Qualifications

• 8+ years of professional UI software development experience.
• Experience working inside or closely with a design team.
• Experience with rapid prototyping, able to build a realistic interactive prototype in days.
• Deep runtime knowledge of at least one major UI framework (e.g. UIKit, SwiftUI, Core Animation, Jetpack Compose, Flutter, or a web-based rendering engine).
• Direct experience with or exposure to embedded system or operating system work (e.g. system daemons, IPC, HAL, drivers, firmware)
• Proficient in at least one of the languages: C, C++, Rust, Swift and the ability to trace code across language and process boundaries.
• Ability to work with incomplete information in uncharted territories, drive quality and results.

Responsibilities

• Turn design specifications, use cases, and rough ideas into shipping features, from early prototypes through production.
• Find where the design language outruns the platform, and push the software at every layer needed to close the distance.
• Advise designers on what the system is actually capable of, early enough for it to change the design.
• Shape the UI runtime and system architecture with requirements drawn from real designs rather than hypotheticals.
• Own the end-to-end development of user experiences alongside design, firmware, and hardware partners.

Skills

UI software development

Design collaboration

Rapid prototyping

UI frameworks

C/C++/Rust/Swift

Embedded systems familiarity

Uncertain problem solving

Tools

UIKit/SwiftUI/Core Animation

Jetpack Compose/Flutter/Web rendering

IPC/ Drivers / Firmware tools

Job description

Hark is an artificial intelligence company building advanced, personalized intelligence. One that is proactive, multimodal, and capable of interacting with the world through speech, text, vision, and persistent memory.

The Embedded Software team seeks a Frontier UX Engineer to turn design ideas into usable experiences. This is not a traditional UI role; you’ll push across layers to close the gap between design language and the platform, owning end-to-end development with design, firmware, and