Baab Al Rayyan PMMS

A property maintenance management system for Baab Al Rayyan in Doha, Qatar: a NestJS/Prisma backend, a Next.js admin console and a Flutter companion app for tenants, technicians and supervisors — all sharing one role-based access model.

A property complex with many buildings, units and assets — and a team spanning admins, managers, supervisors, technicians, storekeepers, procurement and finance, plus the tenants who raise issues.

Maintenance, assets and purchasing were separate problems handled by different people. The complex needed a single system where a tenant’s ticket, the technician who fixes it, the part that gets used and the purchase order that replaces it are all connected — with each role seeing only what it should.

A hierarchical property → sub-location → unit model anchors every asset, tracked by barcode/QR with a movement history. Procurement runs from purchase request through approval to a printable LPO, while inventory tracks parts with stock levels and reorder alerts. A Flutter app gives tenants, technicians and supervisors their own flows against the same backend.

1. A

   Nine roles, one permission model

   Admin, Manager, Supervisor, Technician, Tenant, Secretary, Storekeeper, Procurement and Finance Controller share a single granular RBAC layer with a full audit trail — used by both web and mobile.

2. B

   Hierarchy-first asset model

   Every asset belongs to a property, sub-location and unit, and carries a barcode/QR identity with movement history — so “where is it and what happened to it” always has an answer.

3. C

   Procurement as a workflow

   Purchase request → approval → printable LPO, instead of free-form orders, gives finance and procurement an approval trail.

4. D

   Redis-backed protection

   Rate limiting and multi-device session management live in Redis, keeping the API stateless and defensible.

• Hierarchical property and asset management with barcode & QR tracking
• Purchase request → approval → printable LPO procurement workflow
• Parts inventory with stock levels and reorder alerts
• Granular RBAC across nine roles with a full audit trail
• Flutter app: tenant tickets, technician queues, supervisor oversight
• Firebase push notifications and Arabic/English mobile UI

• Serving nine very different roles without the permission model turning into special cases.
• Keeping web and mobile consistent against one evolving API.
• Supporting a bilingual Arabic/English user base on mobile.

• Actively evolving — the most recent release added the Secretary and Procurement roles.

• NestJS 11
• Prisma
• MySQL
• Redis
• Winston
• Next.js 16
• Redux Toolkit
• Flutter
• Firebase Cloud Messaging