Senior Mobile Developer

Senior Mobile Software Engineer **Job Type:** Contract **Work Mode:** Remote **Expected Commitment:** Approximately 15 hours per week **Compensation:** $50–$100 per hour / output\-based compensation **Experience Level:** Senior Level **Start:** Immediate About the Opportunity We are looking for experienced **Senior Mobile Software Engineers** to contribute to an AI\-focused software engineering project. In this role, you will use your real\-world mobile development expertise to design and solve challenging software engineering problems that help evaluate and improve next\-generation AI systems. The ideal candidate should have strong hands\-on experience in **Android, iOS, or cross\-platform mobile development**, along with the ability to debug complex applications, design robust solutions, and work with modern mobile architectures. Key Responsibilities * Create realistic and challenging mobile software engineering tasks based on real\-world development scenarios. * Design problems involving: * Complex bug identification and resolution * Feature development * Application state management * Mobile application lifecycle * Refactoring and code quality improvements * Performance optimization * Asynchronous programming and concurrency * Develop reproducible environments for mobile coding tasks. * Create deterministic verification methods to evaluate whether a solution correctly addresses the assigned problem. * Develop reference or "golden" solutions demonstrating an appropriate implementation. * Ensure tasks are challenging, technically accurate, reproducible, and representative of real\-world mobile engineering. * Work independently while maintaining high technical and documentation standards. * Apply strong debugging and analytical skills to evaluate multiple possible implementations. Required Qualifications * Significant professional experience in **mobile software development**. * Strong hands\-on expertise in at least one of the following: * **Android:** Kotlin, Jetpack Compose, Android View System * **iOS:** Swift, SwiftUI, UIKit * **Cross\-Platform:** React Native with TypeScript/JavaScript or Flutter with Dart * Strong understanding of: * Mobile application architecture * State management * Asynchronous programming * Application lifecycle * Debugging and troubleshooting * Performance optimization * Ability to understand complex codebases and identify subtle technical issues. * Strong problem\-solving and analytical abilities. * Ability to independently create technically challenging and well\-defined coding tasks. * Strong written communication and technical documentation skills. Preferred Qualifications * Experience working with large or complex mobile applications. * Experience with performance profiling and optimization. * Experience debugging difficult production\-level issues. * Strong knowledge of software engineering best practices and design patterns. * Experience working with open\-source or publicly available mobile repositories. * Experience with automated testing, CI/CD, or developer tooling. * Experience evaluating or reviewing code written by other developers. Technology Tracks Candidates with expertise in **one or more** of the following areas are encouraged to apply: **Android** * Kotlin * Jetpack Compose * Android SDK * Android View System **iOS** * Swift * SwiftUI * UIKit * iOS SDK **Cross\-Platform** * React Native * TypeScript / JavaScript * Flutter * Dart Compensation The opportunity offers compensation in the range of **$50–$100 per hour**, depending on expertise and project requirements. Compensation may be **output\-based**, with payment determined by successfully completed tasks that meet the required quality and project specifications. The amount of time required for each task may vary depending on the complexity of the assignment and the contributor's experience. Availability \& Start Timeline We are looking for experienced professionals who are able to **start immediately**. Selected candidates should be prepared to begin their initial assignments shortly after onboarding. Minimum weekly submission requirements may apply. Work Arrangement * **Remote – Work from anywhere** * Flexible working arrangement * Approximately **15 hours per week** * Independent contractor opportunity * Suitable for experienced mobile developers looking for flexible technical project work Who Should Apply? This opportunity is particularly suitable for **Senior Mobile Developers, Senior Android Developers, Senior iOS Developers, Mobile Software Engineers, React Native Developers, and Flutter Developers** who enjoy solving complex engineering problems and working on technically challenging projects. If you have strong mobile development expertise and are interested in applying your engineering skills to challenging AI\-related software projects, we encourage you to apply. Benefits: * Work from home Work Location: Remote Pay: $50\.00 \- $100\.00 per hour Expected hours: 15\.0 per week Benefits: * Flexible schedule Work Location: Remote