Senior Flutter Developer for Polished Language Learning App | Part-Time, Long-Term

I'm launching a professionally built language learning app in August and need a strong Flutter developer for ongoing work: post-launch maintenance and bug fixes at first, expanding into new feature development over time. The stack: Flutter (GetX for state management) with Firebase/Firestore and Cloud Functions, plus a Python/FastAPI backend powering the AI features. The codebase is actively maintained, documented, and tested. The setup: You'll onboard while the current development team is still under contract, so you'll get a full walkthrough, direct access to the people who built it, and existing project documentation. This is a rare clean handoff. Ideal candidate: 3+ years of Flutter experience with apps you've shipped and maintained live in the App Store and Play Store Solid Firebase depth (Firestore security rules, Cloud Functions, auth) GetX experience, or strong fluency in Flutter state management generally Comfortable owning a codebase solo after handoff Available ongoing, part-time (6+ months), hourly Process: We'll start with a small paid trial task in the real codebase before committing to anything long-term. To apply: Link 2 live Flutter apps you've built, and tell me the first thing you'd want to see in a codebase handoff. Proposals that don't answer both won't be read.