Next.js Developer, Stripe+ Firebase+ UI

I have a working AI-powered travel planner built with Next.js, React, Tailwind, and OpenAI, deployed on Vercel. It already generates high-quality itineraries.
Now I need a developer to take it from MVP → polished, paid SaaS product.
This includes authentication, subscriptions, usage limits, UI improvements, and clean deployment.
What I Need Done1. Add Stripe Subscription System
Stripe Checkout + customer portal
Free plan (3 itineraries/month)
Pro plan (unlimited + extra features)
Usage tracking
“Upgrade to Pro” prompts
2. Add User Login
Firebase Auth (email + Google)
Store user profiles in Firestore
Connect usage limits + saved itineraries to user accounts
3. Firestore Database Setup
Save itineraries per user
Save subscription status
Save usage counters
Secure rules & structure
4. UI/UX Improvements
Improve mobile responsiveness
Better itinerary formatting
Add loading shimmer
Add “regenerate itinerary” button
Clean up input form
Optional: add preset destinations
5. PDF Export (Pro Feature)
Generate a nicely formatted itinerary PDF
Day-by-day sections included
6. Prompt + Output Quality Improvements
Clean structure
Better formatting
More consistent results
Tech Stack
You must be skilled with:
Next.js (App Router)
React
Tailwind
Stripe
Firebase (Auth + Firestore)
OpenAI API
Vercel
Expected Deliverables
Fully working login system
Working subscriptions (Free + Pro)
Firestore database integration
Usage limits implemented
Improved UI/UX
PDF export feature
Final deploy-ready version on Vercel
Clean GitHub commits

Timeline
⏱ 1–3 weeks (flexible, but sooner is better)

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