Senior Software Engineer, Android

Amazon•San Francisco, CA

About The Position

Join Twitch's Mobile Core Engineering team as an Android Software Engineer and help shape the foundation of mobile development across Twitch. As a platform team, Mobile Core provides critical tools, frameworks, and best practices that empower all mobile engineers at Twitch to build exceptional experiences for millions of users. Twitch is evolving its mobile strategy from native-first to a hybrid approach that leverages React in WebViews alongside native Android capabilities. You'll work on high-impact initiatives including our hybrid web-to-mobile platform, performance optimization at scale, automated testing infrastructure, and developer tooling that accelerates velocity across the organization. Your work will directly impact how hundreds of engineers build features and how millions of users experience Twitch on Android. This role requires independent operation and technical leadership, as you'll regularly provide guidance to product teams across Community and Commerce organizations.

Requirements

5+ years of non-internship professional software development experience
5+ years of programming with at least one software programming language experience
5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience
Experience as a mentor, tech lead or leading an engineering team
6+ years of professional Android development experience
Mastery in Kotlin and modern Android development practices
Deep understanding of Android SDK, Jetpack libraries, and Android architecture components
6+ years building and shipping production Android applications to the Google Play Store
Track record of leading major architectural initiatives, migrations, or platform-level projects
Experience mentoring engineers and raising the technical bar across teams
Experience leveraging AI-powered development tools (such as Claude Code, GitHub Copilot, Cursor, or similar) to accelerate development
5+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
Experience with hybrid mobile architectures, WebView integration, JavaScript bridges, React, or React Native
Experience with video streaming or real-time communication technologies
Experience working on platform or infrastructure teams that support multiple product teams
Familiarity with Twitch, either as a viewer or creator (or both!)

Responsibilities

Own and drive the technical strategy for foundational Android components, native video playback infrastructure, and hybrid (React in WebView) frameworks
Architect and build robust WebView infrastructure and bridges that enable seamless integration between React-based web content and native Android functionality
Lead performance optimization efforts for platform components used by millions of daily active users, establishing benchmarks and best practices
Provide technical leadership and mentorship to Android engineers across multiple product teams and within Mobile Core, including onboarding and growing L4/L5 engineers
Drive cross-organizational architectural decisions that balance developer velocity, app performance, and maintainability, representing Mobile Core's technical perspective in org-wide discussions
Collaborate with cross-functional teams to establish and maintain development standards for hybrid mobile applications, influencing adoption across the mobile engineering organization