On-Demand Service App Development

I'm seeking a skilled mobile app developer to create an intuitive, user-friendly On-Demand Service App for both iOS and Android platforms using Flutter or React Native.

Key Features:
- User Registration & Profile Management (Service seekers & providers)
- Service Listings & Categories
- Real-Time Booking & Scheduling
- In-app Chat or Call Functionality

Ideal Candidate Should Have:
- Proven experience building on-demand or marketplace apps
- Strong backend integration skills (Node.js, Firebase, Laravel, etc.)
- Experience with mobile UI/UX best practices
- Familiarity with third-party APIs (Google Maps, chat SDKs, etc.)

Bonus if you have:
- Experience with multilingual or multi-currency apps
- Previous work in home services or freelance marketplace apps

Please include:
- Your relevant portfolio samples
- Tech stack you’d recommend
- Estimated time and cost for MVP
- Availability to start