I’m building a professional, corporate-styled marketplace where service providers and customers can meet, post micro-jobs, and pay each other with PayPal or other digital wallets. The solution must launch as a responsive web platform and as companion apps on iOS and Android, all sharing a single, secure back-end. Core build • Two-sided architecture with separate user journeys for job posters and service sellers • Email-and-password registration plus standard password-reset flow • Rich user profiles showing skills, portfolio items, ratings, and reviews • Job listings with filtering, search, and status tracking • Integrated PayPal wallet checkout for deposits, escrow, and payouts Engagement & trust features • Five-star rating and written review system after each completed job • Real-time in-app messaging so buyers and sellers can discuss details without leaving the platform • Push and email notifications for every key event (new message, offer accepted, payment released, etc.) Look & feel The UI should project a clean, professional, corporate aesthetic—think uncluttered layouts, restrained colour palette, crisp typography, and intuitive navigation across desktop, tablet, and mobile. What I expect to receive 1. Production-ready web application (React, Vue, or similar) 2. Native or cross-platform mobile apps compiled for the latest iOS and Android versions 3. Well-documented REST/GraphQL API powering all three clients 4. Admin dashboard for user management, content moderation, and payment oversight 5. Source code in a private Git repo plus deployment scripts and technical documentation Acceptance criteria • Users can sign up, post a job, hire a seller, complete payment through PayPal, and leave mutual reviews without errors. • Apps pass App Store and Play Store submission checks. • Page and screen load times under three seconds on 4G connections. • All sensitive data encrypted in transit and at rest. If you have a track record of delivering similar multi-platform marketplaces with seamless PayPal integration and solid authentication flows, let’s discuss the tech stack, timeline, and milestones.