CASE STUDY MOBILE · BACKEND · MODERNIZATION
LOCALISEM
A mobile product evolving into a platform.
An information and prevention platform around missing-person cases. A modernized mobile experience, with ongoing evolution toward an independent backend and shared operational tools.
- React Native
- Expo
- NestJS
- PostgreSQL
Active mobile app · backend modernization in progress
The engineering challenge
Preserve a working mobile product while moving toward centralized business rules, independent persistence and separate mobile and administration clients.
Decisions that shaped the system
- 01
Keep the end-user mobile experience separate from administrative responsibilities.
- 02
Evolve toward a shared NestJS API and PostgreSQL persistence rather than duplicating business rules across clients.
- 03
Maintain Android compatibility while improving notification and geographic integrations.
What this work taught me
Modernization is progressive: the mobile application is active, backend independence and database migration are in progress, and routing remains a planned integration.
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