Pedro Guerreiro
Software Developer at Callstack
Portugal
Summary
🤩
Rockstar🎓
Top SchoolPedro Guerreiro is a software developer based in Portugal with five years of hands-on experience across backend and full-stack roles at companies including Callstack, Imaginary Cloud, Runtime Revolution, and Alter Solutions. He brings practical expertise in building production systems and moving between fast-paced consultancy and product-focused teams, currently contributing to Callstack's engineering efforts. Trained in computer engineering at FCT NOVA, Pedro pairs solid academic foundations with real-world delivery across diverse tech stacks. Colleagues would describe him as adaptable and solution-oriented, with a track record of stepping into new codebases and shipping reliable features under tight timelines. Although his public GitHub footprint is minimal, his steady career progression suggests a focus on impactful, team-driven work rather than personal open-source visibility.
5 years of coding experience
3 years of employment as a software developer
Engenharia Informática, Informática, Engenharia Informática, Informática at Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa - FCT NOVA
Github Skills (27)
financial10
ios10
mobile-development10
react-native10
app-framework10
cross-platform10
material-design10
chat10
persistent10
android10
mobile10
boilerplate10
collaboration10
react10
react-dom9
Programming languages (4)
Github contributions (5)
pac-guerreiro/react-native-onyx
Jul 2023 - Mar 2025
Persistent, offline-first state management solution for React Native. Easy to use with minimal config and boilerplate.
Contributions:49 pushes, 3 branches in 1 year 8 months
callstack-internal/Expensify-App
Nov 2023 - Apr 2025
Welcome to New Expensify: a complete re-imagination of financial collaboration, centered around chat. Help us build the next generation of Expensify by sharing feedback and contributing to the code.
Contributions:824 pushes, 55 branches, 1 comment in 1 year 4 months
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