Senior Mobile SDK Engineer

To build mobile SDKs that enhance guest and staff experiences for large hotel brands, the full-time Senior Mobile SDK Engineer will develop and maintain high-quality mobile code on iOS or Android while collaborating with cross-functional teams in a remote setting. Key responsibilities Own the design, development, and maintenance of mobile SDKs for iOS and/or Android Create best-in-class developer experiences, including clear APIs and robust documentation Build features and UI components for first-party staff apps with a focus on reliability and performance Required qualifications 5+ years of experience building mobile applications or SDKs on iOS or Android, with expertise in Swift or Kotlin Proven experience designing, shipping, and supporting public SDKs for external developers Strong understanding of API design, modular architecture, and semantic versioning Proficiency with mobile fundamentals, including networking, concurrency, and performance optimization Experience with mobile package managers and build systems like Swift Package Manager or Gradle