Talent Marketplace App Creation: India

I am building a two-sided marketplace mobile app— similar to Urban Company, freelancer but for creative professionals. Platform: iOS + Android (Flutter preferred for cross-platform) Backend: Node.js + MongoDB Payment: Razorpay integration (escrow — 50% advance, 50% post event) Admin Panel: Must be simple web-based dashboard I can operate without coding knowledge APP HAS TWO USER ROLES: 1. Professional/Talent Side OTP-based mobile login Profile creation with photo, bio, category, city, pricing, experience Portfolio upload — images, videos, audio Availability calendar — mark available and blocked dates Receive booking requests — approve or decline Bid on customer job postings Earnings dashboard — advance received, full payment, pending payout In-app chat (unlocks after booking approval) Push notifications 2. Customer Side OTP-based mobile login Home screen with city selector and category filter Search and browse verified professionals Professional profile page showing: name, rating, jobs done, price, Book Now button, Chat button, Check Availability calendar, portfolio (images/video/audio), reviews Post a requirement — category, date, city, budget, description Receive bids from professionals and accept/decline Booking flow — send request → professional approves → customer pays 50% advance via Razorpay → event happens → customer pays remaining 50% My bookings dashboard — pending approval, confirmed, completed, pending payment, advance paid, fully paid sections Leave reviews after job completion Push notifications BOOKING FLOW (Critical Logic): Customer books professional Professional gets notification — approves or declines within 24 hours On approval — customer pays 50% advance via Razorpay (held in escrow) Both get booking confirmation After event — customer confirms completion Remaining 50% payment released Both leave reviews ADMIN PANEL (Very Important — Must be beginner friendly): Web-based dashboard (works on laptop browser) View and manage all users (professionals + customers) Approve or reject professional profiles View all bookings and their status View all payments and transactions Manually resolve disputes between customer and professional Ban or suspend any user Add or remove talent categories View total GMV, revenue earned, platform fees collected Send push notifications to all users or specific users Simple UI — no coding knowledge required to operate DESIGN REQUIREMENTS: I have a complete UI reference and prototype ready (will share with selected developer) Style: Premium white background, Navy Blue (#0D1B2A) primary color, Amber (#F5A623) accent Inspired by Urban Company and Yes Madam apps Font: Poppins for headings, Inter for body All screens must feel premium and professional CATEGORIES TO SUPPORT (25+): TECHNICAL REQUIREMENTS: Flutter (iOS + Android from single codebase) Node.js + Express backend MongoDB database Razorpay payment gateway Firebase for push notifications and OTP login Cloudinary for image/video/audio storage Stream Chat API or Firebase Chat for in-app messaging Admin panel built in React.js or any simple web framework Clean commented code — handed over fully with documentation Deployed and live on server before final payment DELIVERABLES: Complete Flutter app (iOS + Android) Backend API (Node.js) Admin panel (web-based) Database setup Full source code handed over Basic documentation on how to use admin panel 30 days post-delivery bug support