Several pieces of our product stack went down after the last deployment and I need them back up fast. First priority is the web app: its React / Next frontend can’t reach some WordPress-backed API endpoints, so pages that rely on those calls now 500 or hang. Once that is stable again, you’ll move through the rest of the ecosystem: • The Flutter mobile app crashes on two specific screens and Firebase auth intermittently refuses log-ins. • A Python-based automation pipeline (FastAPI + OpenAI API) stops mid-run because downstream calls break. • The Solidity/Web3 module loses wallet connections and throws errors on contract writes. I’m looking for one engineer who is comfortable jumping between Dart, React, WordPress, Firebase, MySQL, FastAPI, Python, OpenAI integrations, Solidity and Web3.js without taking the live product offline. Deliverables - Web app API endpoints restored and responding normally in production - Flutter app stable, with Firebase authentication fully reliable - AI workflow completing end-to-end without manual intervention - Crypto module establishing stable wallet connectivity and successful contract calls Acceptance is simple: staging and production must pass my smoke tests, unit tests and UX checks for each component above. If you can start immediately and work methodically—from the web app outward—let’s get this fixed today.