I’m building a music-streaming application and need a rock-solid native plugin that keeps audio playing smoothly in the background on both iOS and Android. The core languages are Swift for iOS and Kotlin for Android, so I’m looking for someone comfortable working in both codebases and stitching the two together behind a single, easy-to-call interface. Here’s what I’m after: the plugin must manage background audio sessions reliably, survive app minimisation or device lock, expose transport controls on the lock-screen / notification shade, update track metadata in real time, and cooperate with other audio sources on the device without unexpected interruptions. Efficiency and battery friendliness are priorities. The ideal candidate will be able to develop reliable and efficient native modules that not only support background audio functionality, but also connect seamlessly through our systems—whether via our backend or front-end infrastructure—to ensure smooth data flow and feature integration. I’ll test on the latest Android and iOS releases; once the demo app plays continuously with seamless control hand-off, the job is done. Let me know your timeline and any relevant projects you can point me to, and we’ll get started.