I need a senior-level Flutter engineer (5 + years hands-on) to take charge of a peer-to-peer mobile application that must run seamlessly on both iOS and Android from a single codebase. The core job is to own feature development end-to-end: architecting clean Dart code, wiring up real-time data flow, refining UI components for multiple screen sizes, then shipping fully tested builds to the App Store and Google Play. The project already has a high-level product roadmap; you will turn that vision into production-ready widgets, state management (Bloc or Provider is fine), secure API integrations, and smooth animations. Regular collaboration with our designer and back-end team happens in Slack and Jira, with code reviews in Git. I release milestones every two weeks, and each sprint should close with: • A compiled iOS and Android build (TestFlight / internal track) • Source in our Git repo with clear commit history • Brief release notes and any migration steps Strong knowledge of Firebase, REST or GraphQL, and automated unit / widget testing will help you move quickly. If you have published P2P or finance-oriented apps before, please highlight them and note your role. Drop a short note outlining your relevant Flutter experience, a link to at least one live app, and your earliest start date—then we can dive straight into the repo.