Senior Platform UI Engineer — Craft a Custom OS UI

Winixx Inc.; Atlanta (GA); Hybrid; USD 125,000 - 180,000; Full time

Benefits offered by this job

Visa sponsorship

Competitive salary

Bonus program

PTO & holidays

Professional development

Job summary

Winixx Inc. is building WinixxOS, a distinctive, non-stock Android UI, across phones, tablets, POS, consoles, and wearables in a hybrid, full-time setting in Atlanta. The Senior Platform UI Engineer will shape the core UI layer, windowing, and a unique widget toolkit from the ground up.

You’ll collaborate with API teams and Winixx Studio, optimize rendering performance, and help define a robust design system for an emerging OS and hardware ecosystem.

Qualifications

• 5+ years of platform or framework-level UI engineering experience, with direct AOSP or Android framework experience.
• Experience building custom UI toolkits or significant deviations from stock Android UI.
• Deep understanding of Android’s windowing, compositing, and rendering pipeline.
• Familiarity with adaptive layout patterns that survive OS updates without requiring app rebuilds.
• Bachelor’s degree in Computer Science or equivalent experience.

Responsibilities

• Design and build the system UI layer of WinixxOS, including window management and navigation model.
• Build a custom widget toolkit distinct from stock Android views, used across devices.
• Ensure UI consistency and adaptive layout behavior across device classes and screen sizes.
• Collaborate with API & Integration teams to expose stable, declarative layout APIs to third-party developers.
• Own system UI chrome behavior (status bar, navigation, gesture handling) with OS-update resilience.
• Work with Winixx Studio to ensure the visual layout designer renders against the toolkit.
• Conduct performance profiling and optimization of the UI rendering pipeline.
• Contribute to internal design system documentation for the platform UI.

Skills

UI engineering

AOSP/Android

Custom UI toolkit

Window management

Rendering pipeline

Education

Bachelor's degree in Computer Science

Tools

Android Studio

Job description

Winixx Inc. is building WinixxOS, a distinctive, non-stock Android UI, across phones, tablets, POS, consoles, and wearables in a hybrid, full-time setting in Atlanta. The Senior Platform UI Engineer will shape the core UI layer, windowing, and a unique widget toolkit from the ground up.

You’ll collaborate with API teams and Winixx Studio, optimize rendering performance, and help define a robust design system for an emerging OS and hardware ecosystem.