sekai - Senior Android Engineer, Native Platform
Requirements
• 5+ years of professional Android engineering experience • Strong hands-on experience with Kotlin, Android SDK, and production Android app development • Experience building or owning major parts of a consumer-facing Android app • Strong understanding of Android architecture, app lifecycle, navigation, concurrency, networking, persistence, dependency management, and modularization • Experience building high-quality mobile UI using Jetpack Compose and/or the traditional Android View system • Strong product sense and care for mobile user experience, polish, responsiveness, and reliability • Ability to make independent architecture decisions and clearly explain technical tradeoffs • Strong ownership mindset and ability to drive work end-to-end in a fast-paced environment • Comfortable collaborating closely with Product, Design, Backend, Mobile, and Growth teams • Experience leading or helping lead a team to build a mobile app from 0 to 1 • Experience working in a startup or high-growth consumer product environment • Experience with React Native, including native modules, bridges, or hybrid mobile architecture • Experience integrating Flutter or WebView-based modules into native Android apps • Experience with Android performance profiling, startup optimization, memory management, UI responsiveness, crash reduction, or app health monitoring • Experience with mobile observability and analytics tools such as Firebase Crashlytics, Sentry, Datadog, Amplitude, GA4, or similar tools • Experience with feed-based, social, entertainment, creator, gaming, UGC, marketplace, or other high-engagement consumer products • Experience with Gradle, CI/CD, staged rollouts, Play Console, app signing, and release automation • Familiarity with iOS, TypeScript, React Native, Flutter, or web-based interactive content is a plus • Experience using AI coding tools such as Cursor, Claude Code, Codex, or GitHub Copilot
Responsibilities
• Build and own Sekai’s native Android foundation using Kotlin, Android SDK, and modern Android architecture • Design and improve the Android app shell, navigation, lifecycle handling, session management, permissions, push notifications, deeplinks, and release workflows • Create clean integration points for product modules built in native Android, React Native, Flutter, or WebView • Partner with Product, Design, Backend, and Mobile engineers to ship high-quality consumer mobile experiences • Improve Android app reliability, responsiveness, maintainability, and production quality across real-world devices • Build observability and debugging workflows for crashes, app health, release quality, and user-impacting issues • Define engineering patterns for native modules, cross-stack communication, hybrid screen ownership, testing, CI/CD, and rollout • Use modern AI development tools to move faster while maintaining strong engineering quality
Benefits
• Top-tier salary in the market + competitive equity • Full health insurance • Remote-first team • If you are excited about building at the frontier of AI, consumer social, and interactive entertainment, we would love to hear from you. • At Sekai, you will work with an AI-native team, move fast, own meaningful problems, and have the flexibility to explore new ideas from an early stage.
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