Mobile UI/Design Engineer

Kraken is a mission-focused company rooted in crypto values, aiming to accelerate the global adoption of crypto for financial freedom and inclusion. It is a fully remote company with employees in over 70 countries, developing premium crypto products like Kraken Pro, Desktop, Wallet, and Kraken Futures.

• Deep, demonstrable experience building polished mobile interfaces in React Native, including expertise with Reanimated and gesture handlers.
• Ability to profile JS thread vs UI thread performance and optimize accordingly.
• A trained eye for interaction design, understanding easing curves, spring physics, and 60fps constraints.
• A portfolio or demo reel of shipped work is a hard requirement.
• Experience with modern AI development tooling (e.g., Cursor, Copilot) as part of the development process.
• Strong written and verbal communication skills in English.

Nice to haves:

• Experience with React Native Skia, custom shader work, or canvas-based rendering.
• Native platform knowledge (Swift/Kotlin) for bridging and platform-specific behavior.
• Experience building shared animation libraries, gesture primitives, and motion design systems.
• Background or affinity for visual/motion design, including prototyping in Figma or After Effects.
• Experience in high-stakes product domains such as fintech, health, or trading.
• Ability to push back on designs that don't translate well to mobile while knowing when to ship and iterate.

The opportunity:

• Own the craft layer of the React Native mobile experience with fluid, gesture-driven interactions and transitions that feel native.
• Push React Native beyond defaults using Reanimated, Skia, and native module bridges.
• Partner closely with product designers to challenge and elevate motion and interaction design from concept through implementation.
• Establish animation primitives and interaction patterns within the design system for team-wide use.
• Profile and optimize rendering performance, especially on lower-end Android devices.
• Contribute to architectural decisions affecting UI responsiveness, including state management, render cycles, and data flow.
• Mentor engineers on interaction quality and raise standards across the mobile organization.

Applicants may redact or remove information identifying age, date of birth, or educational attendance/graduation dates. The company considers qualified applicants with criminal histories consistent with the San Francisco Fair Chance Ordinance. Kraken is an equal opportunity employer and does not tolerate discrimination or harassment based on protected characteristics as outlined by law.