Base44 AI Full-Stack Developer: Production Fixes, APIs & App Launch

We're looking for an experienced Base44 Full-Stack Developer to help improve, stabilize, and extend our existing Base44 application. This is not a build-from-scratch project. Our application is already functional, and we need someone to review the current implementation, fix issues, optimize performance, and prepare it for production. The first engagement is a 2–5 hour paid task. If everything goes well, we'd like to continue working together on future features, integrations, and production improvements. Responsibilities Review the existing Base44 application Fix bugs and improve application stability Optimize frontend and backend performance Improve authentication and user flows Connect REST APIs and third-party services Configure Webhooks and API integrations Implement new features where required Debug production issues Improve application security and reliability Prepare the application for production deployment Test functionality across devices Document completed work Required Skills Base44 Mobile app development JavaScript TypeScript React Node.js REST APIs API Integration Webhooks JSON Authentication Bug Fixing Performance Optimization Responsive Web Development AI App Development OpenAI API GitHub Nice to Have Next.js React Native Mobile App Deployment Apple App Store Google Play Store Stripe Integration Firebase Docker What We're Looking For Experience working with existing Base44 projects Strong debugging and problem-solving skills Ability to improve AI-generated applications Clean and maintainable code Clear communication Fast turnaround Experience shipping production-ready applications Deliverables Fixed and optimized Base44 application Bug fixes and performance improvements API integrations Production-ready implementation Testing and documentation