React NativeNode.jsPostgreSQLAWS
Field Production Control System

The challenge
The company managed the daily production of 50+ field workers using Excel spreadsheets and WhatsApp. Supervisors manually reported hours and output, causing frequent payroll errors and zero real-time visibility for management.
The solution
I built a mobile app for supervisors (QR scanning, hour tracking, works offline) and a web platform with real-time dashboards, production indicators, and automated payroll management.
Results
100%
Works offline
+50
Workers managed
80%
Fewer payroll errors
6 wks
Implementation