Senior Full-Stack Developer Needed for Custom SaaS Platform (QR, Referrals & Payments)

# Project Brief – QR Platform (MVP Development) Hi, I'm looking for an experienced full-stack developer or development team to build the MVP for a new SaaS platform. This is **not** a WordPress or Shopify website. It is a custom web application with a mobile-first approach. ## About the Project The platform combines: * User accounts * Membership system * QR code generation * Referral tracking * Competition management * Stripe payments * Customer dashboard * Admin dashboard * Analytics * Email and SMS automation The objective is to create a scalable platform that can grow into a large membership community. ## Core MVP Features The first version should include: ### Customer Side * User registration * Email verification * Mobile verification * Personal member dashboard * Unique QR code generated for every member * Unique referral link for every member * Referral tracking * Free members' prize draw * Competition listings * Competition purchase using Stripe * Customer notifications * Mobile-first responsive design ### Admin Side * Customer management * Competition management * QR management * Referral management * Members' draw management * Revenue dashboard * Analytics dashboard * Winner management * Fraud monitoring * Reporting ## Technical Requirements I'm looking for recommendations, but my initial thoughts are: * React / Next.js * Node.js (or similar modern framework) * PostgreSQL * Stripe integration * Cloud hosting (AWS, Google Cloud or similar) * Secure REST API * Mobile-first responsive interface If you recommend a different architecture, I'm happy to discuss it. ## Scalability Although the MVP will launch with a limited feature set, the platform must be designed to scale significantly over time. Future phases will include: * Mobile apps * Push notifications * Additional competition formats * Advanced referral system * Marketing automation * Loyalty features * AI-powered functionality * Additional third-party integrations For this reason, I want the platform built on solid foundations rather than using website builders. ## What I'm Looking For Please tell me: * Have you built anything similar? * What technology stack would you recommend? * How would you structure the platform? * Would you build this as a monolithic application or modular architecture? * How would you handle QR generation and referral tracking? * How would you approach security and fraud prevention? * What would you suggest changing or improving? * Roughly how long would an MVP take? * What would the estimated budget be? * What ongoing support do you offer after launch? ## Your Professional Opinion One of the reasons I'm looking for an experienced development partner is because I value technical expertise. If this were **your** platform, what would you do differently or improve? Please don't simply quote for exactly what I've described. I'd really like to hear your honest thoughts on the architecture, user experience, scalability, security, performance and any features you believe would make the platform stronger, more efficient or more successful. I'm looking for a long-term partner who is happy to challenge ideas, suggest improvements and help build the best possible product—not just write code. ## Important At this stage, I'm looking for the right long-term development partner rather than simply the lowest quote. Once I've selected a shortlist, I have a full Software Requirements Specification, Wireframe & UX Specification, and Technical Architecture document that I can share for accurate pricing and planning. I look forward to hearing your thoughts and discussing the project further.