Backend Integration for Real-Estate SaaS

I need a backend/full-stack developer to complete, integrate, and deploy the backend for an existing real estate SaaS platform.

⚠️ Read carefully before responding:

The frontend is already built and live (Netlify)

All user flows, pages, and roles already exist

This is NOT a design, UX, or exploratory task

This is backend execution and integration only

What Already Exists

Fully built frontend

CRM dashboard (Admin + User panels)

Defined roles (agent / owner / developer)

Established flows and screens

Work Includes

You will be responsible for connecting and completing the backend:

Core Backend APIs

Authentication & role enforcement

Leads

Properties

Teams / seat logic

Analytics

Payments

PayPal subscriptions

Seat-based billing

Webhooks

Integrations

Mapbox

WhatsApp API (AI-assisted, API-level only)

AI assistant

Web/PWA push notifications

Cloud storage

Reporting

Weekly reports

Monthly reports

Deployment

Environment configuration

Backend deployment (Render / Railway / AWS)

Connect backend to existing frontend

Final QA and production readiness

Important — Read This Carefully

The scope of work is clearly defined above.

This is standard backend integration work:

Connecting APIs

Wiring existing systems

Completing backend logic

Deploying and validating

If you have done this type of work before, you already understand:

What needs to be connected

What integrations are required

What execution looks like

The price for this job is fixed.
We do not do hourly billing.
We do not renegotiate pricing after discussions begin.
We do not add discovery, audits, or exploratory phases.

The price is for the job, not for time spent.

If you are comfortable executing a defined scope for a fixed price, respond with:

Your confirmation that you can complete this scope

Your proposed milestone structure and execution order

If you need exploratory access, open-ended discussions, or hourly billing, this is not a fit.