Alexandre Garrefa
Senior IOS Engineer at Bitso
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolAlexandre Garrefa is a senior iOS engineer with 10+ years of experience delivering robust mobile apps for fintech and blockchain platforms. He is currently a Senior iOS Engineer at Bitso, a role he started in July 2024, following prior positions at ING Nederland and Blockchain.com. Earlier in his career, he co-founded SINGU as CTO, leading iOS development, backend reviews, AWS infrastructure, and a four-person team from concept to delivery. His interests span blockchain (Solidity), backend, security, API design, design patterns, CI/CD, and modern languages, with a strong focus on testable, scalable software. Based in São Paulo, Brazil, he holds a Computer Science degree from Centro Universitário Uniseb and has broad experience across startups, financial services, and digital wallets. He is a proponent of knowledge sharing and OSS, and thrives at the intersection of user experience and robust engineering.
11 years of coding experience
16 years of employment as a software developer
Bachelor of Computer Science, Computer Science, Bachelor of Computer Science, Computer Science at Centro Universitário Uniseb
English
Github Skills (60)
objective-c10
ios10
signing10
jwk10
jwe10
swift10
macos10
jose10
carthage9
mongoose9
xcode9
encryption9
cocoapods9
mongoosejs9
axe8
Programming languages (4)
Github contributions (5)
garrefa/git-aliases
Jan 2015 - May 2021
Contributions:12 pushes in 6 years 5 months
4rkt3ct/fret-wiz
Aug 2019 - Jan 2023
Contributions:2 PRs, 3 pushes, 3 branches in 3 years 5 months
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