Zeller

Zeller (zeller.mx) was a Mexican fintech product built around invoicing, with the tagline "Facturar nunca había sido tan fácil" (invoicing has never been so easy). Its users managed their companies, clients, products, tickets and issued receipts in one place, on top of a balance of available invoice credits (folios).

I worked on it in 2022 as a Mobile Developer, as one of the four products I built for four markets between 2020 and 2022. The app was built with React Native so that it ran on both iOS and Android from a single codebase.

I built the UI layer: Styled Components for theming, Redux for global state management, and React Navigation for the full in-app routing architecture. The gallery shows the product's flows: sign-in with Google, Facebook or email, card registration through Openpay, the home dashboard with email verification, the user profile, and the company setup split into legal data, address, certificate and logo, with a crop tool for the logo.

The stack: TypeScript, React Native, Styled Components and Redux, with React Navigation for routing.

Zeller is no longer running, and the project is deprecated.