Builder - Mobile (Platform), Ring

Amazon • North Reading, MA

1d • $143,700 - $194,400 • Onsite

About The Position

Ring builds the apps that millions of people open every day to check on their homes, see who's at the door, and stay connected to what matters. As a Builder on the App Platform team, you'll write the iOS and Android code that the rest of Ring's mobile engineering organization depends on — the SDKs, frameworks, and tooling that dozens of feature teams build on top of.

This is a role for someone who loves mobile development and wants to go deep — whether that's modern Swift and Kotlin or React Native paired with strong native fundamentals — using the latest platform APIs, clean architecture, and the kind of craftsmanship that holds up at the scale of tens of millions of users. You'll also work alongside engineers who are aggressively adopting AI across the development lifecycle, and you'll be expected to use those tools well — not as a novelty, but as a real lever to ship better software faster.

Requirements

• 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
• 3+ years of professional software development experience building mobile applications
• 3+ years of native iOS (Swift/Objective-C) or Android (Kotlin/Java) development using modern tooling and architectural patterns — or 3+ years of production React Native (or comparable cross-platform) experience with working knowledge of the underlying native platforms
• Hands-on experience with modern UI frameworks (SwiftUI/UIKit, Jetpack Compose, or React Native) and modern concurrency patterns (Swift Concurrency, Combine, Coroutines, async JS)
• Solid understanding of mobile fundamentals: app lifecycle, memory and performance, networking, persistence, and testing
• Experience writing and maintaining unit and UI tests, and working within a CI/CD pipeline

Nice To Haves

• Bachelor's degree in Computer Science, Engineering, or a related field
• Working knowledge of both iOS and Android platforms, or experience bridging React Native with native modules
• Experience adopting AI-powered development tools (AI-assisted coding, test generation, code review, debugging) in real production work
• Experience contributing to shared libraries, SDKs, or platform components used by other teams
• Experience with performance profiling and optimization on mobile devices
• Exposure to streaming video, real-time communication (WebRTC, HLS, RTSP), or connected device protocols (Bluetooth, local network)

Responsibilities

• Build and maintain native iOS and/or Android platform components — SDKs, shared libraries, architectural primitives, and developer tooling — used by feature teams across Ring
• Write high-quality, well-tested code with performance, reliability, and maintainability in mind
• Use AI-powered development tools effectively across your day-to-day work: code generation, test authoring, code review, debugging, documentation, and defect resolution
• Contribute to the evolution of Ring's mobile architecture, identifying friction points and proposing improvements
• Help maintain and improve CI/CD pipelines, build systems, and automated testing infrastructure for the mobile platform
• Partner with feature teams to ensure platform components are easy to adopt, well-documented, and fit their real-world needs
• Collaborate with backend, product, and UX partners to deliver cohesive end-to-end experiences

Benefits

• health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage)
• 401(k) matching
• paid time off
• parental leave
• sign-on payments
• restricted stock units (RSUs)

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: Associate degree