Real Estate Development SaaS Development

Full-Stack Developer — PropTech SaaS Platform (Next.js / PostgreSQL / Multi-Tenant) About the Project Parcelle is a real estate development operating system built for property developers and lenders. The platform covers five modules — Design, Construction, Sales, Finance, and Accounting — with a dual-client architecture that includes a separate Bank Portal for lenders. This is a serious, investor-track SaaS product, not a simple CRUD app. It includes complex features like a waterfall distribution engine, capital stack modeling, pro forma financials, draw request workflows, and role-isolated lender access. The design and UX are already defined through a detailed clickable prototype. What You'll Build A full-stack, multi-tenant SaaS platform across 6 milestones over 11 weeks: - Core infrastructure: database schema, authentication, RBAC routing, developer dashboard - Architecture Module: Permits & Approvals, Design Timeline, Plans & Reports - Interiors Module: FF&E tracker, Visuals & Renderings - Construction Module: Timeline, Trades Board, Daily Logs, Inspections - Sales Module: Unit Inventory, Leads Kanban Pipeline, Pre-Sales Tracker - Finance Module: Budget Tracker, Loan Application, Draw Requests, Bank Portal, Pro Forma, Capital Stack, Waterfall Engine - Accounting Module: QuickBooks Sync, P&L Summary - Customer Portal, end-to-end testing, final deployment Required Stack - Next.js (App Router), React, TypeScript, Tailwind CSS - Node.js, PostgreSQL, Prisma ORM - Row Level Security (RLS) for multi-tenant data isolation - JWT authentication + Google SSO - Role-Based Access Control (RBAC) - Vercel + Supabase - GitHub (private repo, full client admin access from day one) Required Skills & Experience - Proven experience building multi-tenant SaaS applications - Complex dashboard UIs: data tables, Kanban boards, timeline views - REST API design and secure server-side validation - JWT / RBAC implementation - QuickBooks API or equivalent third-party financial integrations - Clean, documented, maintainable code Nice to Have - Financial modeling UIs (pro forma, waterfall, capital stack) - PropTech or real estate SaaS background - Monorepo architecture - AI-assisted development workflow Contract Terms - 6 milestones × $1,000, paid via Upwork escrow on acceptance - Full IP transfers to client on each milestone payment - Private GitHub repo with full client admin access from day one - Client owns all hosting/infrastructure accounts (Vercel, Supabase) - 60-day post-launch warranty on final delivery - NDA and written development terms required before start