João Freitas
Engineering Manager at Zig. The Global Funtech
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolJoão Freitas is an experienced technology leader and entrepreneur with 11 years building resilient backend systems and founding engineering teams in São Paulo. As Partner & CTO at O2 Inc. and formerly a partner and engineering lead at Cora, he specializes in cloud-native microservices, Kafka-driven architectures, Kotlin/Go backends and rigorous TDD practices that scale fintech and SMB financial products. He progressed from mobile and SDK development at Stone to leading backend teams and shaping product strategy, showing a rare blend of hands-on coding and people leadership. Known for organizing tech stacks around operational reliability and developer autonomy, he also brings practical expertise in refactoring legacy systems and driving engineering culture. Outside work he jokes he’s the “hero of Hyrule,” hinting at a playful, challenge-seeking mindset that fuels his problem-solving approach.
11 years of coding experience
11 years of employment as a software developer
Graduação em Sistema de Informação Sistema de Informações, Graduação em Sistema de Informação Sistema de Informações at Universidade Veiga de AlmeidaCaelum
English, Spanish
Github Skills (88)
hexagonal-architecture10
brasil10
telegram10
http-client10
ktor10
polling10
maven10
brazil10
async10
telegram-bot10
jvm10
java10
android-app10
android10
spring-boot10
Programming languages (8)
Github contributions (5)
jgabrielfreitas/LicenseTextView
Apr 2016 - Apr 2017
Contributions:1 release, 19 commits, 18 pushes in 1 year
jgabrielfreitas/Permissions
Jun 2016 - Dec 2017
Contributions:2 releases, 17 commits, 1 PR in 1 year 6 months
runtimeandroid-libraryandroidkotlinpermissions
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