01Colégio CEPI Expansão · school ERP · web + iOS + Android
in production

School ERP on web, iOS and Android.

Colégio CEPI Expansão's system, built as a team and used by 365 students and their parents. I built the front end for grades, attendance and finances, the mobile app and most of the UX/UI.

Sign-in screen of the Colégio CEPI Expansão system with student, parent and staff profiles next to the school's 43rd anniversary artwork — caso-01 · erp-escolar

01 · problem: Tying the session to the IP would log out every parent who switched from Wi-Fi to 4G.
02 · decision: Device identification uses only the User-Agent, not the IP. Protection comes from rotating refresh tokens: if a used token shows up again, every token in that session is revoked.
03 · number: 125 screens · 115 models · 246 backend tests