Job Description

Senior Native Mobile App Engineer
Role summary
We are looking for a highly skilled Mobile Engineer to lead the design, development, and maintenance of our cross-platform Software Development Kits (SDKs). In this role, you will build the core libraries that power our services within third-party applications. Your goal is to create high-performance, lightweight, and developer-friendly tools that work seamlessly across the Android and iOS ecosystems.
Key activities

• Architect & Build: Design and develop native SDKs from scratch using Kotlin (Android) and Swift (iOS).
• API Design: Create clean, intuitive, and "idiomatic" APIs that make integration easy for external developers.
• Performance Optimization: Ensure the SDK has a minimal footprint (binary size, memory usage, and battery impact) to avoid negatively affecting host apps.
• Binary Distribution: Manage the lifecycle of SDK distribution via Maven/Central for Android and Swift Package Manager (SPM), CocoaPods, or XCFrameworks for iOS.
• Stability & Compatibility: Maintain strict backward compatibility and semantic versioning. Ensure the SDK is robust enough to handle the "unpredictable" environments of thousands of different host apps.
• Documentation & Tooling: Write technical integration guides, create sample applications, and maintain "Quickstart" repositories to reduce developer friction.
• Cross-Functional Collaboration: Work with backend teams to define efficient networking protocols (REST/gRPC) and security teams to ensure data privacy.

Technical Profile & Requirements
Core Engineering

• Kotlin Expert: Deep understanding of Coroutines, Flow, and Android Jetpack libraries.
• Swift Expert: Mastery of Swift Concurrency (async/await), Combine, and low-level iOS frameworks (Foundation, Network).
• Concurrency: Strong experience handling multi-threading and asynchronous operations in a library environment.
• Security: Knowledge of secure data storage (Keychain/EncryptedSharedPreferences) and network security (SSL pinning).

Core Engineering

• Dependency Management: Proven ability to build libraries with zero or minimal external dependencies.
• Modular Architecture: Experience with Clean Architecture or SOLID principles applied to library modules.
• Build Systems: Proficiency with Gradle (Kotlin DSL) and Xcode build settings/schemes.
• CI/CD: Experience setting up automated pipelines for testing and publishing libraries (e.g., GitHub Actions, Bitrise).

Soft Skills

• Developer Empathy: You think like a customer. You care about how long it takes a new dev to get "Hello World" running with your SDK.
• Technical Writing: Ability to explain complex technical logic in simple, clear documentation.

Nice to Have

• Experience with Kotlin Multiplatform (KMP) for shared business logic.
• Experience with C++ or Rust for low-level cross-platform performance.
• Contributions to open-source mobile libraries.
• Familiarity with React Native or Flutter "bridges" to wrap your native SDKs.

Why this role is unique
Unlike app developers who build for end-users, you are building the "engine." Your code will run inside hundreds of different apps, facing unique edge cases and scale challenges that standard app development rarely encounters.
Goodyear is one of the world's largest tire companies. It employs about 68,000 people and manufactures its products in 51 facilities in 19 countries around the world. Its two Innovation Centers in Akron, Ohio, and Colmar-Berg, Luxembourg, strive to develop state-of-the-art products and services that set the technology and performance standard for the industry. For more information about Goodyear and its products, go to .
Goodyear is an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to any characteristic protected by law.

Skills Required