I’m gearing up for an intense 12-week sprint to push the next release of our cross-platform mobile app and need a senior engineer who can take full ownership from UI code to database. The contract runs for three months with the option to extend, and you’re free to work remotely or drop into the office—whatever keeps you most productive. The app targets both iOS and Android, so deep React Native expertise is essential. Beyond the mobile layer, you’ll be steering the backend services and the data store, moving comfortably between screens, APIs, and schema design without much hand-holding. During the engagement you will: • Build and refine React Native components that feel perfectly native on both platforms. • Design or update Node.JS endpoints, write server-side logic, and tighten performance and security. • Handle database work. • Own testing, CI/CD, and App Store / Play Store deployments so releases roll out smoothly. Everything lives in Git; I work asynchronously with short daily check-ins on Slack or email. If you have a track record of shipping React Native apps backed by solid server architecture and you thrive when trusted with autonomy, tell me about a recent project where you wore the same hat. Please include links to production apps or code samples and let me know when you can start.