Case Study

Rilu

Replacing spreadsheet-driven billing for rural water committees with an automated, multi-tenant platform.

FastAPIFirestoreFirebase AuthGoogle Cloud RunReact

The challenge

Rural water committees and small community associations in Chile relied on manual, spreadsheet-based processes to track water consumption and issue member invoices — a slow, error-prone workflow with no visibility into consumption trends or payment status.

What we built

A multi-tenant SaaS platform that lets multiple committees operate independently on shared infrastructure, each with fully isolated data and access control. Designed, built, and deployed solo, end-to-end, in 8 weeks:

01

Automated invoice generation based on metered consumption, with 12-month historical trend charts and anomaly flagging for unusual usage

02

Tenant-based authentication and access control (Firebase Auth)

03

Integrated online payment collection through a local payment gateway (Flow.cl)

04

Admin panel for committee administrators to manage members, review consumption, and track payment status

The outcome

Live in production, currently serving a rural water committee in Chile, replacing manual billing with an automated, auditable system for consumption tracking and invoicing.

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