Paulo Rinze

- Maintain and extend a legacy healthcare prescription system used across Portugal's National Health Service (SNS) - Implement new modules to enhance system capabilities, working within a complex Liferay/Java EE infrastructure - Integrate SOAP web services into the electronic prescription system following existing SOA architecture - Test and troubleshoot to ensure reliable prescription solutions.

- Built a grant-tracking module for QuickBooks, serving 150+ NGOs funded by USAID, FHI360, and HAI programs - Developed reusable components following Intuit’s design system, documented with Storybook - Optimized REST API data fetching with TanStack Query and Redux T

- Collaborated on multiple SaaS applications built on Laravel and React, collectively serving 10,000+ active users - Integrated third-party APIs including DHIS2, payment gateways, and SMS services across applications and websites - Built 10+ responsive, mobile-first websites and integrated headless CMS solutions via REST APIs - Implemented Server-Driven UI patterns to give marketing teams full content - Developed a cross-platform mobile application using React Native for real-time field data collection

- Built the frontend of a backoffice from scratch for an enterprise fuel terminal management system (Petro STK), enabling real-time tracking of fuel loading operations across Beira and Maputo terminals - Developed a React Native mobile app for field agents to update truck loading status in real time - Collaborated with the backend team to define core API endpoints for the backoffice and mobile app