z.systems is a VC‑backed technology startup focused on revolutionizing traditional retail through a B2B2C digital ecosystem. The company connects independent grocery stores with brands, consumers, and digital services, creating a seamless, owner‑operated retail network. With over 20,000 retailers and 900,000 orders delivered, z.systems is reshaping the modern trade experience in informal retail markets across Africa.

As a Senior Mobile Developer – React Native, you will spearhead the development and optimization of the company’s mobile applications. Your responsibilities include:

• Leading the design, implementation, and maintenance of cross‑platform mobile apps using React Native for Android and iOS.
• Implementing new features, enhancing existing flows, and ensuring smooth performance across a wide range of devices and OS versions.
• Managing the full mobile lifecycle: development, debugging, testing, CI/CD pipelines, and store releases.
• Handling Expo EAS builds, multi‑environment configurations, OTA updates, and automated deployment pipelines.
• Ensuring seamless synchronization with backend services via REST and GraphQL APIs, maintaining high reliability and consistency.
• Collaborating closely with backend, product, and design teams to deliver user‑centric experiences.
• Conducting performance profiling, memory optimization, and troubleshooting complex mobile issues.
• Managing App Store and Play Store submissions, ensuring compliance and smooth release cycles.

We are looking for a candidate with:

• 3+ years of experience in mobile development, with strong expertise in React Native.
• Proven track record of delivering production‑grade apps on both Android and iOS.
• Solid understanding of performance optimization, debugging, and native integrations.
• Strong ownership, autonomy, and attention to detail.
• Excellent communication skills and a product‑driven mindset.

Key technical skills include React Native, TypeScript, Expo & EAS Build, native modules, Android Studio, Xcode, OTA updates, Firebase, REST/GraphQL APIs, CI/CD pipelines, and publishing to Google Play Store and Apple App Store.

We offer a hybrid working model in Casablanca, a competitive salary, and the opportunity to work in a dynamic, fast‑paced environment that is shaping the future of retail in Africa.