Senior Mobile Developer – React Native at z.systems will lead the design, development, and optimization of cross‑platform mobile applications for Android and iOS. The role requires deep expertise in React Native, TypeScript, Expo, and native modules, as well as experience with CI/CD pipelines, OTA updates, and store publishing. Responsibilities include building new features, improving performance, managing the full mobile lifecycle, and collaborating with backend, product, and design teams. Candidates should have 3+ years of mobile development, strong problem‑solving skills, and a passion for delivering high‑quality, scalable mobile experiences.