Cássio Ribeiro
Android Developer
Hamburg, Germany
Summary
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SeniorCássio Ribeiro is a Senior Android Developer with 15 years of hands-on experience in mobile and web engineering, tracing his Android expertise back to Honeycomb and now shipping Kotlin, coroutines and Compose at NautilusLog. He combines deep Java and Android SDK knowledge with modern architectures (MVVM, Clean), dependency injection, and a long track record integrating Firebase, Retrofit, Dagger and Jetpack across consumer and banking apps. As a founder of startups like Optom and Etutore he’s equally comfortable building full-stack solutions and leading engineering efforts, having engineered backends, multiple frontends and deployment pipelines. His career spans large product teams and freelance roles, delivering apps for banks, telecoms and health/fitness companies while maintaining a pragmatic focus on testable, maintainable code. Unusually for a senior mobile engineer, Cássio has formal postgraduate work in computational intelligence and information security, giving him extra depth in systems design and reliability. Based in Hamburg, he blends entrepreneurial initiative with proven remote collaboration on global projects.
15 years of coding experience
Stackoverflow
1,939reputation
318kreached
25answers
1question
android
top-5%
passwords
top-5%
oauth
top-1%
Github Skills (85)
firebase10
oauth10
javascript9
angularfire9
angular9
websocket-client9
realtime-database9
realtime9
ngrx9
rxjs9
passwords9
java9
cookie9
android9
laravel8
Programming languages (5)
Github contributions (5)
ziglee/crosslasers
Oct 2010 - Nov 2010
Contributions:6 commits in 5 days
ziglee/cassiolandimnet
Mar 2018 - Jan 2024
Contributions:1 push, 1 branch in 5 years 11 months
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