Tajo: time tracking that clocks in on site every day

The problem: clocking in on a site is not clocking in at an office

Sites have no turnstiles and no wifi, workers move between jobs during the day, and the time record has to stand up to a labour inspection. Generic time-clock apps fall short exactly there.

What Tajo does

A mobile app for workers and site managers, and a desktop panel for HR and management.

• Geolocated clock-ins with server time, chained so they cannot be edited after the fact.
• Works without coverage: stores on the phone and syncs when the network is back.
• Daily site reports, dictated by voice.
• Absences, hourly leave, documents and incidents with photo or PDF.
• Desktop panel with daily control per site, monthly reports and Excel export.

How we built it

Flutter for Android and web, Firebase on the server, and security rules tested against the emulator before every release. Every version goes through full QA per role, on emulators and real hardware.