Build Premium Realtime Audio Social Platform -- 2

We are building Sama, a premium realtime 1-to-1 audio social platform focused on: expert discovery realtime matching monetized audio communication wallet & billing systems scalable social infrastructure This is a serious long-term startup project — not a basic MVP. We are looking for an experienced full-stack development team or agency with strong expertise in: Flutter WebRTC Node.js / TypeScript Realtime systems Redis PostgreSQL Scalable backend architecture Premium mobile UI/UX The product architecture is designed to support future expansion into: video calling group rooms live streaming creator ecosystem features --- Core Features Required Authentication Mobile OTP login JWT authentication Session/device management Rate limiting & abuse prevention User Profiles Profile creation/editing Profile images Bio & nickname Language preferences Online/offline states Expert/Host System Expert onboarding Voice verification upload Admin approval workflow Verification badges Per-minute pricing Discovery & Matching Expert listings Filters by category/language Ratings & pricing display Realtime availability Random matching Instant connect flow Wallet & Payments Recharge system Cashback/rewards Transaction history Ledger-based wallet Realtime balance updates Commission system Realtime Audio Calling WebRTC-based audio calling Low latency Reconnect handling Call timer Call history Mute/unmute Auto disconnect on low balance Realtime Billing Server-authoritative billing Per-minute charging Auto wallet deduction Fraud prevention Ledger reconciliation Ratings & Reviews User reviews Ratings after calls Reputation system Notifications Push notifications Missed calls Recharge alerts Activity notifications Admin Panel User management Expert moderation Wallet monitoring Fraud detection Realtime analytics Reports & abuse handling --- Preferred Tech Stack Frontend Flutter Modular scalable architecture Premium animations Production-grade UI Backend Node.js + TypeScript NestJS preferred Event-driven architecture Scalable APIs Infrastructure PostgreSQL Redis WebRTC Coturn/TURN server Docker Cloudflare --- Important Requirements We are NOT looking for: beginners low-quality UI template-based apps basic Firebase-only solutions We ARE looking for: scalable architecture realtime expertise production-grade engineering premium mobile experience clean codebase long-term collaboration --- Deliverables Flutter mobile app Backend APIs Realtime infrastructure Admin panel Deployment setup CI/CD Documentation Production deployment support Full source code ownership --- Experience Required Please apply ONLY if you have experience with: WebRTC apps audio/video calling systems realtime matchmaking scalable backend systems wallet/payment systems Flutter production apps When applying, include: 1. Similar projects 2. Architecture approach 3. Team structure 4. Estimated timeline 5. Tech stack recommendation 6. Infrastructure scaling strategy --- Budget Open to: Fixed price OR Milestone-based engagement Priority is quality and scalability over cheapest cost. --- Skills Flutter, WebRTC, Node.js, NestJS, Redis, PostgreSQL, [login to view URL], Docker, DevOps, Realtime Systems, Mobile App Development, Backend Development, UI/UX The design and functionality should be similar to the Connecto app.

Project ID: 40450116