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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr Software Engineer - Mobile (React Native) - **Company:** The Playlist LLC - **Location:** United States (Remote available) - **Experience:** Expert - **Salary:** $151,275.0 - $251,200.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Artificial Intelligence, Android Studio, Apple Xcode, Applications Architecture, App Store (IOS), User Authentication, Automation of Tests, Software as a Service, Profiling, Code Review, Continuous Integration, Cursor, Software Debugging, Fault Tolerance, Gradle, Model View ViewModel, E2e Testing, Microsoft Copilot, SQLite, Software Testing Automation Framework, Data Streaming, TypeScript, Data Logging, Network Routers, ReactJS, Large Language Models, Claude Code, Hallucination Detection, Agentic-AI, Data Layers, Kotlin, Cocoapods, Sentry, Graphql, React Native, React Redux, Google Play, Invoking Functions, Objective C++, Restful APIs, Pagination, New Relic (SaaS), Multiplatform, Software Version Control, Xctest - **Published:** October 9, 2026 - **Apply:** https://arc.dev/remote-jobs/j/redirect/pqfmjgwv7x ## About the Role * 5+ years building and shipping cross-platform mobile applications with React Native for large-scale consumer or SaaS products * Strong proficiency with TypeScript and JavaScript, including strong fundamentals in the language and ecosystem * Deep experience with modern React Native, including the New Architecture (Fabric, TurboModules, JSI) and the Hermes engine, plus core React patterns (hooks, composition, state management, render performance) * Experience with the Expo toolchain (Expo Router, EAS Build/Submit/Update) or comparable bare-workflow and native build setups * Solid experience shipping to both iOS and Android, including an understanding of platform differences and when to drop down to native code * Comfort writing or maintaining native modules and bridging to native code (Swift/Objective-C, Kotlin/Java) when the situation calls for it * Experience consuming GraphQL APIs (schema-driven development, client caching, pagination patterns) and/or well-designed REST APIs, including client data-fetching patterns (e.g., TanStack Query) * Solid understanding of on-device persistence (e.g., AsyncStorage, MMKV, SQLite, WatermelonDB, or Realm), offline-first patterns, and networked-client fundamentals (timeouts/retries, idempotency, offline handling, graceful degradation) * Familiarity with app architecture patterns (MVVM, TCA, or similar) and modular, testable codebases * Solid debugging skills; comfortable using Xcode Instruments (Time Profiler, Allocations, Leaks) and the Xcode debugger * Experience with testing across the stack: unit, integration, and UI (e.g., XCTest, XCUITest, snapshot testing) * Experience with the release pipeline: App Store Connect, TestFlight, code signing, and provisioning * Clear communicator who collaborates effectively across roles and working styles * AI-native builder mindset with strong ownership and judgment: leverage AI to amplify output and quality, and bring (or quickly build) experience with AI-adjacent systems like evals, guardrails, prompt/tool design, and agentic workflows Tools and systems This role is cross-platform mobile with React Native, with ownership across product experiences, client services, and on-device data. You do not need to have used every tool here, but you should be comfortable learning new technologies and choosing the right approach for the problem. * Languages: TypeScript, JavaScript, with Swift/Objective-C and Kotlin/Java for native modules ## Description You'll build and evolve cross-platform mobile experiences at Playlist with React Native, shipping customer-facing features to iOS and Android across our consumer apps, from the interface down through networking and on-device data layers. You'll partner closely with Product, Design, and QA to take ideas from concept to production with high quality, reliability, and strong UX. You'll also operate at the edge of what's possible by leveraging AI (LLMs and agentic tooling) to accelerate delivery, improve quality, and push product capabilities forward. * Partner with Product and Design to deliver features from ideation through App Store and Play Store release, iterating based on feedback and outcomes * Own mobile features end-to-end across iOS and Android: UI, state and view logic, client networking, local persistence, and production rollout * Build polished, accessible interfaces in React Native with a strong focus on performance, responsiveness, and UX quality on both platforms * Design and integrate client-side networking against GraphQL/REST APIs, collaborating on schemas, contracts, authentication, and authorization * Build reliable data flows on device: persistence, caching, background tasks, offline support, and sync * Drive engineering excellence and operational health through automated testing, thoughtful code reviews, and strong crash reporting and observability, strengthening logging, error handling, resilience, and release readiness while identifying risks early * Use AI effectively to move faster without sacrificing correctness: AI-assisted debugging, test generation, accessibility checks, refactors, and design/UX iteration * Help foster a collaborative team culture that values autonomy, accountability, and impact, * State & data: Redux Toolkit/Zustand/Jotai, TanStack Query, GraphQL (e.g., Apollo Client) and/or REST, AsyncStorage/MMKV/SQLite/WatermelonDB, secure storage (Keychain/Keystore) * Runtime & tooling: Metro, Hermes, Xcode, Android Studio, Gradle, CocoaPods, monorepos (Nx/Turborepo), CI/CD * Testing: unit/integration/e2e testing (Jest, React Native Testing Library, Detox/Maestro) plus native unit/UI tests * Release & distribution: EAS Build/Submit/Update, Fastlane, App Store Connect, Google Play Console, TestFlight, over-the-air updates (Expo Updates/CodePush), code signing, provisioning * Observability: crash reporting and monitoring (Sentry/Crashlytics/New Relic or similar), React Native DevTools/Flipper, performance profiling * AI/LLM tooling & quality/safety: Cursor/Copilot-style IDE assistants; Claude Code/Codex-style CLI assistants; MCPs; tool/function calling; agent frameworks; prompt/version management; evals; regression suites; hallucination/guardrail strategies; and data/privacy considerations * Engineering Practices: automated testing, code reviews, CI/CD, observability, on-call, incident management, with AI-accelerated workflows where appropriate, _By entering your email and phone number and submitting your application, you consent to receive emails, calls and SMS about your application and other roles at The Company, including by auto-dialer. Message and data rates may apply. Opt-out or text STOP to cancel at any time. If you are a California resident or reside outside the United States then by submitting your application you confirm that you have read, understood, agree and - where applicable - grant your prior, free, informed and express consent for the processing of your personal information, including sensitive personal information, as described in our California Applicant Privacy Notice or International Applicant Privacy Notice (as applicable). _Note: This description outlines key responsibilities but isn't intended to cover every task or duty. Additional responsibilities may be assigned as needed to support the team and business goals.