Senior Full Stack Developer Needed for Matrimony Platform (React + Node + Supabase + Realtime)

Must Read Before APPLY ( don't waste your connect ) ** Only Freelancer can Apply do not apply any Agency or IT company We Strictly Rejected them ** We are looking for an experienced Senior Full Stack Developer to fix and stabilize our existing matrimony web application. Current Stack: React + Vite Frontend Node.js + Express Backend Supabase Database/Auth Socket.IO Realtime Vercel Deployment Render Backend Hosting Important: The old localhost version of our app worked correctly using local JSON database architecture. After migrating to cloud deployment (Vercel + Render + Supabase), the production app is facing multiple realtime and synchronization issues. Current Problems: Realtime updates not working properly Admin/user actions not syncing instantly Settings updates not reflecting correctly Chat and notifications issues State mismatch between frontend/backend Production deployment behaving differently from localhost Mixed old localhost logic and new Supabase architecture We are NOT looking for simple frontend bug fixing. We need someone who understands: Production-grade architecture Cloud deployment Realtime systems Supabase Realtime API architecture State management Websocket troubleshooting Scalable backend systems Main Responsibilities: Audit current codebase Remove localhost dependency logic Refactor backend architecture Stabilize production deployment Fix realtime synchronization Optimize Supabase integration Make deployed app behave exactly like old localhost version Improve scalability and production readiness Future Scope: After stabilizing web app, we also want to build a completely fresh React Native Android application using same backend APIs and database. Required Skills: React Vite Node.js Express Supabase PostgreSQL Socket.IO / Realtime systems React Native (future phase) Production deployment experience Vercel / Render deployment API architecture State management (Redux/Zustand) Please apply only if you have REAL experience building and deploying realtime production applications. When applying, please share: Similar projects Realtime architecture experience Supabase experience Deployment experience Your recommended approach for fixing production architecture