Case study · Multi-tenant restaurant operations
TechSfera POS
A production-oriented restaurant POS platform with tenant isolation, branch-level access, operational modules, and WAN-resilient synchronization.
Context
The product problem
Multi-location restaurant teams needed one platform for POS operations, inventory, ingredients, production batches, menu pricing, loyalty, and coupons.
Constraint
What made it difficult
Branch operations had to tolerate unreliable WAN connectivity while databases, cache, authentication, domain routing, roles, and permissions remained isolated per tenant.
Decision
The technical judgment
I designed an immutable sequenced-event tracer with idempotent command replay and retry/backoff, alongside isolated tenant infrastructure and granular branch-level RBAC.
- Failure states designed explicitly
- Observable production path
- Accessible interaction model
Under the hood
A readable system boundary.
The architecture stays compact enough to explain and explicit enough to operate.
- React UI
- Laravel services
- Sync tracer
- PostgreSQL
- Laravel
- React
- TypeScript
- PostgreSQL
- Docker
- Node.js