Senior Platform UI Engineer

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

Atlanta, GA, US Hybrid Full-time $125,000 – $180,000

About Winixx

Winixx Inc. is a New York-based technology holding company operating a portfolio of over 35 SaaS platforms across freight, fleet management, financial infrastructure, and market intelligence. We are now building WinixxOS — a distinctive, AOSP-based operating system powering a full lineup of consumer hardware including phones, tablets, smartwatches, POS devices, and gaming consoles. Founded with a mission to modernize fragmented and underserved industries, Winixx builds technology that removes inefficiencies, creates transparency, and puts more value in the hands of the people doing the actual work. This is early-stage, high-ownership platform engineering — you would be shaping foundational decisions for a new OS, not implementing someone else's spec.

Role Summary

The Senior Platform UI Engineer owns the system UI layer of WinixxOS — building a genuinely distinctive interface from scratch, not a reskin of stock Android. You will shape window management, navigation, and the custom widget toolkit that defines how Winixx looks and feels across every device class.

What You'll Do

• 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 phones, tablets, POS, consoles, and wearables
• Ensure UI consistency and adaptive layout behavior across all device classes and screen dimensions
• Collaborate with the API & Integration team to expose stable, declarative layout APIs to third-party developers
• Own system UI chrome behavior (status bar, navigation, gesture handling) with an eye toward OS-update resilience
• Work closely with the Winixx Studio team to ensure the visual layout designer renders accurately against the real widget toolkit
• Conduct performance profiling and optimization of the UI rendering pipeline
• Contribute to internal design system documentation for the platform UI

What We're Looking For

• 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
• Strong systems thinking — comfortable designing for reuse across very different device classes
• Comfortable working in an early‑stage environment shaping foundational UI architecture
• Bachelor’s degree in Computer Science or equivalent experience

• Competitive base salary commensurate with experience
• Performance bonus program tied to individual and company milestones
• Visa sponsorship available for the right talent
• Full‑time role with a minimum one-year commitment
• Front‑row seat at a company building a new OS and hardware ecosystem from the ground up
• Collaborative, mission‑driven team environment
• Paid time off and company holidays
• Professional development and continuing education support

Winixx Inc. is an equal opportunity employer. We evaluate all applicants on the basis of qualifications, experience, and demonstrated ability without regard to race, color, religion, sex, national origin, disability, veteran status, or any other characteristic protected by applicable law.

This is a full‑time position with a minimum one-year commitment. Visa sponsorship is available for candidates with the right qualifications and experience.

The compensation range reflected in this posting represents the minimum and maximum target range for this position. Individual pay within the posted range is determined by a candidate’s demonstrated experience, educational background, skill set, and geographic location. Final compensation is established at the time of offer and may fall anywhere within the stated range based on these factors.

Compensation ranges reflect national US market data and are subject to change. Additional forms of compensation may include performance bonuses, equity participation, and other benefits as outlined in your offer documentation.